PRO DEX INC
10KSB, 1996-09-30
MEDICAL, DENTAL & HOSPITAL EQUIPMENT & SUPPLIES
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<PAGE>
 
                    U.S. SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                            ----------------------

                                  FORM 10-KSB

(Mark One)
[X]  Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange
     Act of 1934 (Fee Required)

     For the fiscal year ended June 30, 1996

[ ]  Transition Report Pursuant to Section 13 or 15(d) of the Securities
     Exchange Act of 1934 (No Fee Required)

                      Commission File Number     0-14942

                                 PRO-DEX, INC.
             ----------------------------------------------------
                (name of small business issuer in its charter)

        Colorado                                               84-1261240
- -------------------------------                         ------------------------
(State or other jurisdiction of                         (I.R.S. Employer ID No.)
incorporation or organization)

1401 Walnut St., Ste., 540, Boulder, Colorado 80302
- ---------------------------------------------------
(Address of principal executive offices)

Issuer's telephone number  (303) 443-6136
                           --------------

Securities registered under Section 12(b) of the Exchange Act:
                                                           Name of each exchange
                                                           ---------------------
Title of each class                                         on which registered
- -------------------                                        ---------------------
       None                                                        None

Securities registered under Section 12(g) of the Exchange Act:

                           Common Stock, no par value
                           --------------------------
                                (Title of class)

     Check whether the issuer (1) has filed all reports required by Section 13
or 15(d) of the Exchange Act during the past 12 months, and (2) has been subject
to such filing requirements for the past 90 days. Yes   X   No
                                                     ------   ------  

                      (Cover page continued on next page)
<PAGE>
 
     Check if there is no disclosure of delinquent filers in response to Item
405 of Regulation S-B is contained in this form, and no disclosure will be
contained, to the best of registrant's knowledge, in definitive proxy or
information statements incorporated by reference in Part III of this Form 10-KSB
or any amendment to this Form 10-KSB. [X]

     Issuer's revenues for its most recent fiscal year.  $20,833,236

     The aggregate market value of the voting stock held by non-affiliates
computed by reference to the average of the bid and asked as of September 20,
1996 was $24,723,397.

     The number of shares of the Registrant's no par value common stock
outstanding as of September 20, 1996 was 9,050,783.

     DOCUMENTS INCORPORATED BY REFERENCE: Certain Exhibits, as set forth in the
Exhibit Index. Exhibit index begins on sequentially numbered page 40.

                              PAGE 1 of 44 Pages.

                                      (i)
<PAGE>
 
                                    PART I

Item 1.  Business
         --------

General
- -------

     As of June 30, 1996, Pro-Dex, Inc. (the "Company" or "Registrant") was the
parent company of six operating subsidiaries, Biotrol International, Inc.
("Biotrol"), Challenge Products, Inc. ("Challenge"), Pro-Dex Management, Inc.
("PDM"), Micro Motors, Inc. ("Micro"), Oregon Micro Systems, Inc. ("OMS") and
Pnu-Light Acquisition Corporation ("Pnu-Light"). Biotrol manufactures and
distributes infection control products for the dental industry. Challenge
manufactures fluoride and related products for preventive dentistry. PDM is a
dental management company, operating five dental centers located in Sears
Roebuck, Inc. stores in northern California. Micro, a manufacturer of
miniature pneumatic motors, was merged with and into a wholly owned subsidiary
of the Company on July 26, 1995. Micro also manufactures and markets a complete
line of hand-pieces for the dental industry. On July 26, 1995, the Company also
acquired all the outstanding stock of OMS. OMS designs and manufactures multi-
axis circuit boards used to control the motion of servo and stepper motors,
predominantly for the computer chip manufacturing industry. On May 11, 1996, 
Pnu-Light acquired substantially all the assets of Pnu-Light Tool Works, Inc., a
Missouri corporation ("Pnu-Light Tools"). Pnu-Light Tools had developed a
patented pneumatic light system for hand tools to be used in dental, medical and
industrial applications.

     On May 25, 1994, the shareholders of the Company's predecessor approved a
Plan of Reorganization and Agreement of Merger pursuant to which the Company
changed its state of incorporation to Colorado.

Acquisitions During Year Ended June 30, 1996
- --------------------------------------------

     On July 26, 1995 the Company acquired all the issued and outstanding stock
of Oregon Micro Systems, Inc., an Oregon corporation ("OMS") from Mr. L. Wayne
Hunter, the sole shareholder of OMS. In addition to the OMS stock, the Company
also acquired from Mr. Hunter related assets identified as two letters patent
for the design of OMS' multi-axis motion control circuit boards. OMS provides
the design and manufacture of multi axis circuit boards to control the motion of
motors used predominantly in medical testing equipment and computer chip
manufacturing machinery. The total purchase price paid for the OMS stock and
related assets was approximately $6,700,000, including a post closing
adjustment, all of which for accounting purposes has been recorded under the
purchase method.

     Mr. Hunter and the Company also entered into a consulting and non-
competition agreement pursuant to which, in the aggregate, the Company will pay
Mr. Hunter $1,000,000 over five (5) years. Approximately $3,000,000 of the
purchase price is allocated by the parties to the patents. The balance of
$3,700,000 is allocated to the stock of OMS. The underlying assets and net book
value of OMS, not including any intellectual property, was approximately
$3,817,000. See "Item 12- Certain Relationships and Related Party Transactions."
            ---
                                      -2-
<PAGE>

     The Company obtained a five (5) year term loan from Finova Capital
Corporation ("Finova") and borrowed $500,000 from Air Techniques, Inc., a
Delaware corporation ("Air Techniques") to finance portions of the acquisition
price and related acquisition costs.  The remaining principal of the acquisition
loans from Finova and Air Techniques has since been repaid with proceeds from a
loan from Harris Bank and Trust, N.A., which the Company obtained on July 26,
1996.  Prior to repayment of such Finova loan, the Company was required to pay
interest at prime plus 3 1/2 percent plus an additional annual 5% profit
participation fee calculated on the outstanding loan balance at the beginning of
each year.  Pursuant to the loan agreement with Air Techniques, such lender was
issued warrants to acquire an aggregate of 26,000 shares of the Company,
exercisable at the loan date market price, with such warrants and underlying
shares restricted and legended in accordance with the registration requirements
of the federal securities law. Also pursuant to the loan agreement and a
guaranty of the Air Techniques loan entered into by Professional Sales
Associates, Inc. ("PSA"), that firm was issued warrants to acquire 13,000
restricted shares of the Company's common stock, exercisable at the loan date
market price. Three of the Company's directors, including its Chairman, are
directors of PSA.  See "Item 6 -Management Discussion and Analysis - Liquidity
                   ---                                                        
and Capital Resources" and "Item 12 - "Certain Relationships and Related Party
Transactions."

     Also on July 26, 1995, Micro Motors, Inc. ("Micro Motors") was merged with
and into Micro, which thereafter changed its name to Micro Motors, Inc.,
pursuant to a Merger Agreement among Micro, Micro Motors, the five Micro Motors
shareholders (the "Micro Shareholders") and the Company.  In connection with the
statutory merger of Micro Motors with and into Micro, the Micro Shareholders
were issued 3,350,000 shares of the Company's common stock in exchange for all
of their shares of Micro Motors.  The price of the Company's stock at the time
of the exchange was $2.75 per share, making the initial acquisition cost of
Micro $9,212,500.   For accounting purposes the transaction has been recorded
under the purchase method.  On February 29, 1996, the Company's shareholders
approved conversion of 26,272  options to acquire Micro Motors shares, granted
prior to the merger under the Micro Motors Stock Option Plan, to options to
acquire 591,120 shares of the Company's common stock under the Company's 1994
Stock Option Plan.  Micro develops and manufactures patented miniature pneumatic
motors and dental hand-pieces.  Prior to the merger transaction, the former
Chairman of Micro Motors, Mr. Ronald G. Coss, entered into an agreement to
terminate his long term employment contract with Micro Motors, Inc., for the sum
of $677,400 payable over five years, at 11% interest per annum.  Also, pursuant
to the merger, Mr. Coss executed a non-competition agreement with the Company
for

                                      -3-
<PAGE>
 
consideration in the amount of $1 million over five years, with payment
commencing in the sixth year after closing.  Mr. Coss now serves as Vice
Chairman of the Company.  See "Item 12 -Certain Relationships and Related Party
                          ---                                                  
Transactions."

     On May 11, 1996, the Company and its newly formed wholly owned subsidiary,
Pnu-Light, acquired substantially all the assets of Pnu-Light Tools, including a
letter patent relating to pneumatic light mechanisms to be used in conjunction
with hand-tools (the "Patent"), from Pnu-Light Tools and Mr. Marty J. Anderson,
an individual resident of Missouri ("Anderson"), pursuant to an Asset Purchase
Agreement dated May 11, 1996 among the Company, Pnu-Light, Pnu-Light Tools, and
Mr. Anderson (the "Asset Purchase Agreement"). The assets of Pnu-Light Tools
were acquired by the Company and Pnu-Light subject to specified outstanding
liabilities of Pnu-Light Tools. The initial consideration for acquisition of
assets of Pnu-Light Tools, including the Patent, was issuance of 368,483
restricted shares of the Company's common stock, valued at $5.63 per share, the
market price on the transaction date. Additional consideration for the
acquisition of assets is payable by the issuance of additional stock, based upon
an interim calculation as of December 31, 1997, and a final calculation as of
June 30, 1999. The total purchase price is equal to five (5) times the net after
tax earnings of the Pnu-Light Subsidiary for the year ending June 30, 1999, with
a minimum total consideration of $4,000,000 giving credit against such minimum
for (a) the greater of (i) the fair market value of the Company's stock
previously issued as consideration, as of the date issued or (ii) the fair
market value of Registrant's stock previously issued as consideration, as of
June 30, 1999, (b) Patent related costs subsequent to closing, (c) excess
accounts payable, and (d) research and development costs incurred within 120
days of closing. In addition, the Company, at the Company's sole option, may
unwind the transaction at any time prior to payment of final consideration as of
June 30, 1999, provided that the value of total consideration payable at 5 times
net after tax earnings shall not then exceed $4,000,000. The Company has
recorded the net assets acquired at the present value of the estimated, adjusted
minimum purchase price of $3,070,000 using the purchase method of accounting and
reflecting therein additional consideration payable pursuant to the Asset
Purchase Agreement. The excess of the total acquisition cost of Pnu-Light Tools
over the fair value of the net assets acquired of approximately 1,100,000 is
being amortized over a 15 year period by the straight line method.

     Mr. Anderson currently serves as the Director of Development of Pnu-Light
under a three year employment agreement, at an annual salary of $60,000. See
"Item 12 - Certain Relationships and Related Party Transactions."

     Management believes the acquisition of these three new subsidiaries will
provide significant synergistic possibilities to the Company's business.

Products Offered by Biotrol
- ---------------------------

     Biotrol is a dental products distribution company specializing in infection
control products and preventive dental products.  Biotrol believes that the
products offered by it can be used effectively as an operatory infection control
system to minimize cross-contamination by potentially infectious organisms in
the dental operatory.  Biotrol's infection control system includes five
categories of products: surface cleaners and disinfectants; immersion cleaners
and disinfectants;

                                      -4-
<PAGE>
 
a dental vacuum line cleaner/disinfectant; barriers; and a line of preventative
dental products manufactured for Biotrol by Challenge under the "Perfect Choice"
label.  These products include fluoride gels and rinses in addition to
prophylaxis pastes and related preventive dentistry products.

     Biotrol has entered into a marketing agreement with Challenge, whereby it
markets Challenge's branded products.  In the opinion of management, this
intercorporate marketing agreement does not undercut Biotrol's ability to enter
into other non-exclusive marketing agreements. Over fifty-eight  percent (58%)
of Biotrol sales are attributable to four customers with whom Biotrol has
maintained longstanding relationships.  Biotrol has no plans to discontinue
these relationships, nor does it believe these customers have any plans to
discontinue their relationship with Biotrol.  Any material adverse change in the
relationship with these four customers may be financially detrimental to 
Biotrol.

     Biotrol considers its relationships with its various suppliers and
manufacturers to be excellent.  It does not intend to terminate any relationship
at this time, nor does its management believe any relationship will be
terminated by a supplier or manufacturer.  Biotrol holds no franchises and has
no exclusive arrangements with any of its suppliers or manufacturers.

     At the present time, Biotrol is usually able to fill orders within forty
eight hours. During the year ended June 30, 1996, Biotrol continued to maintain
its record for improved customer service and turn-around time. At June 30, 1996,
Biotrol had no order backlog, and had virtually no backlog at June 30, 1995.
Biotrol does not typically experience seasonal fluctuations in its orders.

Products Offered by Challenge
- -----------------------------

     Challenge is a manufacturer of products used by dentists for the prevention
of dental disease.  The majority of its business is the formulation and
manufacture of gels, pastes and rinses for in-office and home treatments for the
prevention of dental diseases. Its products are sold under the Challenge labels
of "Perfect Choice,"(TM) "Dual-X,"(TM) "Dentalite,"(TM) and "Prophy Gems,"(TM)
which are marketed under the "Perfect Choice"(TM) label. Challenge products are
marketed by Biotrol through the current Biotrol sales force and distributors. In
addition, Micro markets a dental hand-piece lubricant produced by Challenge
under Challenge's "Micro Mist"(TM) label.

     Fifty-eight percent (58%) of Challenge products are formulated, packaged
and sold under private label agreements with other dental manufacturers and
distributors.  Two such manufacturers/ distributors represent a significant
percentage of Challenge's private label sales, however, these relationships are
longstanding and Challenge has no plans to discontinue these relationships, nor
does it believe that these customers have any plans to discontinue their
relationships with Challenge.  Any material adverse change in the relationships
with either of the two customers representing significant percentages of
Challenge's private label sales may be financially detrimental to Challenge.


                                      -5-
<PAGE>
 
     Sixty-five percent (65%) of Challenge's revenues are derived from sales to
its two largest customers.  The largest portion of such revenues, constituting
forty percent (40%) of total sales are to Biotrol, under Challenge's marketing
agreement with Biotrol. Management considers that the intercompany nature of
the relationship with Biotrol affords somewhat greater security of continuity of
relationship than could ordinarily be expected.  Nevertheless, if any material
adverse change were to occur in Challenge's volume of business with either of
its two largest customers, such change may be financially detrimental to 
Challenge.

     Challenge usually fills orders for its branded "Perfect Choice"(TM) and
"Prophy Gem"(TM) products within forty-eight hours and carries little backlog,
enabling it to provide a level of customer service which enhances marketing of
the products.  Unlike the branded products, private label customers usually
anticipate a 30 to 60 day lead time for the delivery of products to them. As of
June 30, 1996, Challenge had a backlog of $88,000, the largest proportion of
which related to timing of orders for private label products not due for
immediate shipment.  At June 30, 1995, Challenge had a backlog of $160,000.
Challenge does not typically experience seasonal fluctuations in its orders, and
expects to fill all its orders during the current fiscal year.

PDM - Dental Center Operations
- ------------------------------

     Dental services in each PDM center are provided by independent dentists who
contract with PDM to operate in the facilities, using PDM management services.
PDM management services include the establishment of business procedures and the
development and implementation of promotional activities.  PDM equips and staffs
its dental offices to facilitate the practice of general and orthodontic
dentistry for children and adults.  PDM receives a management fee for providing
facilities, personnel and services to the dentists.  Dentists develop and direct
all patient treatment plans and exercise control over all dental services
performed in the office.  In accordance with the California professional
requirements, all dentists in PDM centers are licensed to practice dentistry in
California.

     Each dentist in the dental centers establishes the fee for services
rendered in his office in consultation with PDM. Upon development of the
treatment plan by the dentist, PDM and the patient enter into a contract for
payment. PDM bears responsibility for collection of the contract amount. PDM
bears the risk of non-collection of fees. PDM, after an intensive review of its
accounts receivable, reduced earnings by providing for a charge for doubtful PDM
accounts of $352,000 for the year ended June 30, 1995. During the year ended
June 30, 1996, PDM's further review of its accounts receivable performance
required it to reduce earnings by providing for a charge for doubtful PDM
accounts of $204,000 for such year. PDM now requires payment at the time
services are rendered for all new non-orthodontic dental cases, where payment
responsibility is not expected to be discharged by a third party payor.

     Denti-Cal and Third Party Payors.  PDM is an authorized provider for, and
     --------------------------------                                         
significant revenues are derived from, California State Welfare Program (Denti-
Cal).  Denti-Cal is a program

                                      -6-
<PAGE>
 
administered by the California Department of Health Services which provides
subsidized dental care to low income California residents. Provider dentists are
required to comply with applicable state and federal regulations, are inspected
by the State of California Department of Health Services, and must agree to
accept the assignment of Denti-Cal payments. PDM has been involved with Denti-
Cal since 1980. Any material adverse alteration of the relationship between PDM
and Denti-Cal would be financially detrimental to the Company.

     PDM - Relationship with Sears.  PDM has leased offices from Sears Roebuck
     -----------------------------                                              
and Co. ("Sears") stores since 1978, affording increased visibility to a large
number of Sears customers. PDM management has successfully negotiated lease
renewals in the past and believes there is no reason why the leases would not be
renewed. Nevertheless, the Company is unable to predict the future of its
relationship with Sears, noting that most of the Company's site leases from
Sears are up for termination or renewal prior to June 30, 1997.  See "Business -
                                                                 ---            
Properties."

     PDM - Liability Exposure for Dental Services.  Provision of dental services
     --------------------------------------------                               
necessarily exposes PDM to risk of litigation arising from treatment received in
its dental care offices. The Company and Sears require that services rendered by
dentists in PDM offices are within the covered risks of professional liability
insurance naming PDM and Sears as co-insured. Such insurance must provide
coverage of at least $1,000,000 per individual claim and $1,000,000 per year for
all claims. To the extent insurance may in any case prove insufficient or the
insurance company is relieved of its obligations to cover the loss, PDM and the
Company may bear substantial costs associated with such litigation, including
the amount of any settlement and/or judgment. Although PDM management believes
that its required minimum policy limits are satisfactory, there can be no
assurance that the insurance proceeds, if any, will cover the full extent of
loss, resulting from patient claims, if any. Neither the Company nor its PDM
subsidiary directly maintain such professional liability insurance.

     Company Plans Regarding PDM.  The Company's Board of Directors recently
     ---------------------------                                             
began considering various alternatives regarding PDM's future, including
restructuring of the business, continued operations under present parameters,
expansion of operations, and sale of the business. Most of the PDM site leases
with Sears are up for renewal or termination prior to June 30, 1997. After 
consideration of the Company's future and PDM's compatability with other
subsidiaries, the Board of Directors decided to exit this line of business.
Accordingly, the Company's financial statements present the subsidiary as a
"discontinued operation." Recently, the Board of Directors received a written
proposal from a possible purchaser regarding acquisition of the PDM business,
which the Board of Directors was unable to accept without significant
modifications. Negotiations remain open, but the Company's Board of Directors is
unable to predict whether such negotiations will result in any agreement to
dispose the PDM business. Due to the sensitive nature of ongoing negotiations
for which no letter of intent has been adopted, the Company is unable to
disclose the possible price or other material terms for the proposed
transaction, however, the Company believes it will be able to liquidate its
holdings in PDM at no loss to the Company. Any proposal acceptable to the
Company must provide for an appropriate transition of personnel and independent
contractor professionals. The Board of Directors stresses that the ongoing
negotiations are very preliminary and may result in no agreement. Further, while
the Board of Directors would only agree to a transaction it believed to be in
the Company's best interest. See "Management Discussion and Analysis - Results
                             ---
of Operations - Forward Looking Statements."

                                      -7-
<PAGE>
 
Products Offered By Micro Motors.
- -------------------------------- 

     Micro manufactures miniature pneumatic motors used in dental, medical and
industrial devices.  In addition, Micro manufactures and distributes a complete
line of dental hand-pieces for the dentist and hygienist.  Micro's industrial
products are sold directly to original equipment manufacturers.  The branded
hand-piece line is sold to dental distributors, who in turn market directly to
the dentist.   Micro products are sold under the trademarks "Dynatorq,"(TM)
"Dynapro,"(TM) "Dynalite,"(TM) "Dynasurg,"(TM) and "Micro Handpiece."(TM)

     Forty-eight percent (48%) of Micro sales in the year ended June 30, 1996
were accounted for by sales of its dental hand-pieces. Private label and branded
hand-pieces are sold to original equipment manufacturers and under an exclusive
marketing agreement by Professional Sales Associates, Inc. ("PSA"), a firm for
which three of the Company's directors are directors. See "Item 12 - Certain
                                                      ---
Relationships and Related Party Transactions." In February 1996, the Company
introduced two products, (1) a new high-speed non-fiber optic handpiece and (2)
a new high-speed fiber optic handpiece. The Company is confident that this
extension of Micro's full line of dental hand-pieces positions Micro to serve
the full breadth of needs in its primary market.

     Approximately eighteen percent (18%) of Micro sales in the year ended June
30, 1996 consisted of sales of miniature pneumatic motors for industrial use.
Such motors are marketed directly to manufacturers, by Micro's internal sales
force.

     At the present time, Micro is usually able to fill orders within sixty (60)
days. At June 30, 1996, Micro had a backlog of orders of approximately $97,920,
which it believed to be firm. At June 30, 1996 Micro had open orders of
approximately $1.9 million, including such backlog, as compared to open orders
of approximately $1.4 million at June 30, 1995. Micro expects to fill all of its
backlog of orders during the current fiscal year. Micro does not typically
experience seasonal fluctuations in its orders.

     Joint Development with Pnu-Light.  During the year ended June 30, 1996,
     --------------------------------                                       
Micro undertook efforts to assist Pnu-Light in the development of a production
prototype of its pneumatic light for incorporation into dental hand-pieces and
other hand-tools, and began manufacture of such tools for the commercial market.
Since the Company's acquisition of Pnu-Light assets on May 11, 1996, greater
Micro resources have been devoted to development of the Pnu-Light products,
pursuant to intercompany arrangements which do not result in an immediate return
to Micro.  Management considers the Pnu-Light development work to be an
investment of resources which may result in useful products with a reasonable
return for both Pnu-Light and Micro in the future. See "Management Discussion 
                                                   ---
and Analysis-Results of Operations-Forward Looking Statements."

                                      -8-
<PAGE>
 
Products Offered by OMS
- -----------------------

     OMS designs and manufactures multi-axis circuit boards to control the
motion of motors used predominantly in medical testing equipment and computer
chip manufacturing machinery. During the year ended June 30, 1996, OMS achieved
sales of $5,312,648, as compared to pro forma sales of $3,650,000 for the year
ended June 30, 1995. The comparison sales figures for OMS in the prior period do
not include amounts relating to a pre-acquisition license between OMS, Hunter
and Abbott Laboratories, for which no revenue will flow to the Company.
Management attributes the increase in fiscal year 1996 sales for OMS primarily
to a substantial marketing effort undertaken by new management after acquisition
of OMS, as well as robust sales in the first half of the fiscal year as a result
of positive cyclical factors in the computer chip manufacturing industry which
utilizes OMS' products.

     OMS markets its multi-axis circuit boards through nine outside sales
representatives, seven of whom are under exclusive relationships.  For the
present, OMS's products are profitably marketed at prices which compare
favorably with any alternative products.  As in any high-technology area, it is
important for OMS to continue development efforts to achieve continued market
acceptance.  In this connection, OMS has benefited from consulting services
provided in the year ended June 30, 1996 by Mr. Hunter, the former sole
shareholder of OMS.  Mr. Hunter's consulting agreement provides that the hours
required to be committed to consulting services for the benefit of OMS reduce in
the year ending June 30, 1997.  See "Item 12-Certain Relationships and Related 
                                ---                                           
Party Transactions." Mr. Hunter continues to assist OMS and the Company is
confident that the product development group in place at OMS will continue to
enable OMS to compete effectively.

     OMS' two largest customers account for twenty- nine percent (29%) of its
sales, with the largest of such customers accounting for twenty-one percent
(21%) of sales.  These relationships are well-established , OMS has no plans to
discontinue the relationships, and has no reason to believe that these customers
have any plans to discontinue their relationships with OMS. Nevertheless, any
material adverse change in the relationships with any customer representing
significant percentages of OMS sales may be financially detrimental to OMS.

     At the present time, OMS is usually able to fill its orders within twenty-
four hours.  At June 30, 1996, OMS' backlog was $633,823, as compared to
$817,200 as of June 30, 1995.  OMS does not typically experience seasonal
fluctuations in its orders, although there are fluctuations in demand resulting
from cyclical activity in the industries it serves.

Pnu-Light Products
- ------------------

     Pnu-Light products include a patented pneumatic light suitable for
incorporation in hand tools.  During the year ended June 30, 1996, the products
had very limited sales.  Pnu-Light, under development arrangements with Micro,
continues to devote substantial effort to further development of its principal
product.  Pnu-Light products are marketed by Micro's internal sales force, under
an intercompany marketing arrangement.

                                      -9-
<PAGE>
 
Employees
- ---------

     At June 30, 1996, the Company had approximately 191 full and part-time
employees (excluding independent contractors). At that time, 3 full-time
employees were assigned to corporate headquarters and devoted substantially all
of their time to the operations of the Company. In addition, 2 Company employees
were located at the Company's facility in Santa Ana, California devoted
substantially all their time to the Company operations as the parent
corporation. Approximately 21 persons were employed by Challenge, including 4
persons assigned to Pnu-Light research operations located in Ozark, Missouri.
Approximately 26 persons were employed by Biotrol, not including 2 of the full-
time employees assigned to corporate headquarters. Approximately 28 employees
provided dental-related or clerical services in PDM dental centers, not
including dentists who are independent contractors not in the employ of PDM or
the Company. Micro employed 96 individuals as of June 30, 1996, excluding
personnel located in the Micro facility who were employed as Company personnel.
OMS employed 15 individuals. Pnu-Light had no employees as of June 30, 1996, but
its operations include 4 individuals employed by Challenge, whose offices are
located in the Pnu-Light facility at Ozark, Missouri.

     Employees of the Company have not entered into any collective bargaining
agreements with the Company. The Company considers its relations with its
employees to be good.

Employee Retirement Plan
- ------------------------

     Effective January 1, 1996, the previously "frozen" employee retirement plan
which had been in place at Micro prior to acquisition by the Company (the "Micro
Plan") was expanded to become the Pro-Dex, Inc. 401(k) Employee Retirement Plan
(the "401(k) Plan" or the "Plan"). The 401(k) Plan was adopted by the Company
for the benefit of employees of the Company and all six subsidiaries. Amounts in
the former retirement plan allocated or accounted for as being for the benefit
of any employee have been preserved in such employee's account under the 401(k)
Plan. The OMS plan was frozen at the time of the acquisition and subsequently
merged into the Micro Plan. For purposes of compliance with the Employee
Retirement Income Security Act of 1974 ("ERISA"), the Company is the Plan
Administrator for the 401(k) Plan, and uses Massachusetts Mutual Insurance to
assist it in administering the Plan. All employee contributions to the Plan vest
upon contribution. Company contributions to the Plan vest in accordance with a
six year schedule from the date a participant is first employed by the Company
or any of its subsidiaries. During the year ended June 30, 1996, the Company's
contribution with respect to the 401(k) Plan was set at $36,232, a portion of
which will have been actually paid in following year end, in accordance with
ERISA standards. The terms of the Company's 401(k) Plan require the Company to
make a Plan contribution, on a matching basis, of 25% of employee contributions,
on an annual basis. The Company currently anticipates that approximately $90,000
may be contributed to the Plan for the year ending June 30, 1997.

     In 1973, Micro established an Employee Stock Ownership Plan (ESOP) whose 
shares in Micro Motors, upon merger of Micro Motors with and into Micro were 
exchanged for restricted shares of the Company's common stock. No contributions 
were made to the ESOP in the year ended June 30, 1996. On July 26, 1996 the ESOP
became eligible to exercise certain demand and concurrent registration rights 
with respect to the ESOP's shares in the Company. Demand registration rights 
will expire if not exercised prior to July 26, 1997 and concurrent registrative 
rights expire July 26, 2000. The value of the Company's stock owned by the ESOP
on June 30, 1996 was approximately $4,399,200 based upon the average of the bid 
and asked price of the Company's common stock.

                                      -10-
<PAGE>
 
Government Regulations
- ----------------------

     The manufacture and distribution of dental products, such as the Micro
dental handpieces, the infection control products marketed by Biotrol, the
dental prophylaxis products manufactured by Challenge and the provision of
dental services by PDM, all must be considered to be heavily regulated
businesses.  A number of state and federal regulatory bodies, including state
dental boards, the Environmental Protection Agency ("EPA"), and the Food and
Drug Administration ("FDA") have substantial authority to regulate the Company's
businesses.  The statutes, regulations, administrative orders, and advisories
which affect the Company's businesses are extremely complex and subject to
diverse, often conflicting, interpretations.  While the Company's management and
management of each of the Company's operating subsidiaries make every effort to
maintain full compliance with all applicable laws and regulations, the Company
is unable to eliminate an ongoing risk that one or more of its activities may at
some point be determined to have been non-compliant.  The penalties of non-
compliance could range from an administrative warning to termination of a
portion of the Company's business.  Further, even if the Company is subsequently
determined to have fully complied with applicable law or regulation, its costs
in achieving such a determination and intervening loss of business could
adversely affect or even terminate a portion of the Company's business.
Further, a change in regulations at any time may have an adverse effect on the
Company's operations. Notwithstanding the risks inherent in the Company's
business sectors, management believes that each of the Company's subsidiaries
has deservedly enjoyed a good reputation for compliance with applicable
regulations.

     Several of Biotrol's products fall under the Environmental Protection
Agency's (EPA) jurisdiction and are registered with the EPA.  The Food and Drug
Administration (FDA) has jurisdiction over Biotrol products that are considered
medical devices or drugs. Both EPA and FDA have broad enforcement power to
recall and prohibit the sale of noncomplying products. As is common in the
industry, certain of Biotrol's products and processes have been periodically the
subject of routine reviews and investigations by the EPA and FDA.  Although
certain products have been subject to action by the EPA in the past, those
actions were resolved to the satisfaction of Biotrol's management, and without
recall or other interference with the operations of Biotrol.  While the
Company's management is confident that Biotrol products and processes fully
comply with all applicable law and regulations, the Company is unable to predict
the future outcome of any such investigation or review, pending its completion.
Management believes that Biotrol follows Current Good Manufacturing Practices
(CGMP).

     The Food and Drug Administration (FDA) has jurisdiction over Challenge
products that are considered medical devices or drugs.  As noted above, the FDA
has broad enforcement power to recall and prohibit the sale of noncomplying
products.  No claim has been made to date by FDA against Challenge or any of its
products or processes.  Nevertheless, as is common in the industry, certain of
Challenge products and processes have been the subject of routine reviews and
investigations. While the Company's management is confident that Challenge
products and processes fully comply with applicable law and regulations, the
Company is unable to predict the outcome of any such investigation or review,
pending its completion.  Management believes that Challenge follows Current Good
Manufacturing Practices (CGMP).

                                      -11-
<PAGE>
 
     The practice of dentistry is regulated by statutes, rules and regulations
in each state, and is typically regulated by a state dental board.  Generally,
no one other than a licensed dentist admitted to practice in a state may provide
professional dental services.  The business of providing and managing dental
offices in the manner engaged in by PDM is still somewhat innovative.  PDM
management is unable to assess the risk that a regulatory authority may assert
that the conduct of PDM's business constitutes the unlawful practice of
dentistry or that it results in unlawful fee splitting.  PDM seeks to assure
compliance by facilitating, but not engaging in, the practice of dentistry.
Only dentists licensed to practice dentistry in the State of California direct
patient treatment.  Although PDM believes that its operations are in compliance
with applicable law, there is no assurance that an adverse determination by
regulatory or judicial authorities might not occur. Such adverse determination,
if any, could substantially impede or even prevent the continuation of PDM's
business.

     Micro's dental hand-pieces are not currently regulated by the FDA as
medical devices. There continues to be internal review within the FDA regarding
the scope of the agency's authority to regulate dental equipment such as Micro's
hand-pieces.  Should the FDA develop regulations governing Micro's products,
Micro intends to comply fully with all applicable law and regulations.  Micro's
processes involve certain materials subject to regulation by the EPA, and Micro
management believes that it has taken all required measures to comply with
regulations regarding handling and disposition of such materials.  Management
believes that Micro follows Current Good Manufacturing Practices (CGMP).

     Management believes that the processes, materials and products of OMS'
business in the manufacture and distribution of multi-axis circuit boards is
conducted in a manner consistent with EPA regulations governing disposition of
industrial waste materials.  Although the semi-conductor and computer chip
industries are significantly impacted by the EPA regulations applicable to the
processes and materials used in production of computer chips and computer chip
components, OMS management has undertaken measures where possible to reduce OMS'
exposure to risk of non-compliance.  Most significantly, OMS acquires pre-
manufactured computer chips as platforms upon which to place OMS technology.
While the Company's management is confident that OMS products and processes
fully comply with applicable law and regulations, the Company is unable to
predict the outcome of any investigation or review which may in the future be
undertaken respecting OMS or is products or processes.  Management believes that
OMS follows Current Good Manufacturing Processes (CGMP).

Patents, Trademarks and Licensing Agreements
- --------------------------------------------

     The Company currently holds letters patent relating to the multi-axis
motion control circuit boards manufactured by OMS.  In addition, Micro holds
letters patent relating to its miniature pneumatic motors products.  Further,
the Company also holds letters patent relating to the pneumatic light for
incorporation into hand-tools acquired in the Pnu-Light asset acquisition,
subject to the seller's rights in the event the Company elects to unwind the
transaction.  The Company has conducted limited review of the letters patent
acquired in connection with the OMS, Micro and Pnu-Light acquisitions, and
believes that the use of such letters patent is neither

                                      -12-
<PAGE>
 
infringed upon by any third party nor infringes on any prior art of any third
party. Notwithstanding the limited review of letters patent relating to the
Micro, OMS and Pnu-Light businesses, the Company is unable to assess the
validity, scope or defensibility of the foregoing letters patent.  Any challenge
to or claim of infringement relating to the Company's letters patent could
adversely affect the Company's Micro, OMS and Pnu-Light operations.

     Prior to the Company's acquisition of OMS, OMS and its founder entered into
a world-wide, fully paid limited use license of certain letters patent with
Abbott Laboratories.  The founder of OMS has agreed to indemnify the Company for
any further duties to be performed in connection with the license to Abbott
Laboratories, which are the obligation of such individual as sole recipient of
related royalties.

     The Company's Micro subsidiary has certain trademarks relating to its
miniature pneumatic motors products, including "Dynatorq,"(TM) "Dynapro"(TM)
"Dynalite,"(TM) "Dynasurg,"(TM) and "Micro Handpiece"(TM). Challenge Products
Inc.'s products are sold under the tradename "Dentalite"(TM) in both the United
States and Canada. In addition, Challenge offers its new line of preventative
dental products under its "Perfect Choice"(TM) tradename. Challenge also markets
its new "Prophy Gems"(TM) dental prophylaxis product under its "Perfect
Choice"(TM) trademark, in both the United States and Canada. Micro also markets
a dental handpiece lubricant produced by Challenge under Challenge's "Micro
Mist"(TM) trade name. The Pnu-Light pneumatic light is marketed under the trade
name, "Pnu-Light."(TM)

     Except as noted, the Company has not entered into any licensing or
franchising agreements and has no present plans to do so.

Item 2.   Properties
          ----------

     The Company's offices are located at 1401 Walnut Street, Suite 540,
Boulder, Colorado 80302.  The Company leases its headquarters offices for $1,883
per month, on a month to month basis, under a sub-lease from Professional Sales
Associates, Inc., a dental equipment marketing firm for which three of the
Company's directors are also directors and two of such directors are also
shareholders.  The per square foot cost of the Company's spaces under its sub-
lease equals the per square foot cost of the master lease, and the Company's
sub-lease is subject to the terms of the master lease.  The master lease under
which the Company is sub-lessee expires January 31, 2000.  The Company's sub-
tenancy has been ratified by a disinterested majority of the Board of Directors,
which does not feel that the Company's operations would be unduly inconvenienced
were the Company required to relocate its three headquarters employees.
Although the Board of Directors believes that the monthly rental for its Boulder
office facility is comparable to rents charged for comparable properties in the
market area, the terms of such lease may not be the same as might have been
negotiated with a third party in an arms' length transaction.

     Biotrol's office, assemblage and warehouse facility is located at 650 South
Taylor, Louisville, Colorado 80027.  Biotrol leases 15,005 square feet from an
organization which is not affiliated with Biotrol.  Biotrol's lease expires
March 31, 1999.  Biotrol currently pays monthly

                                      -13-
<PAGE>
 
rental of $6,877, which will escalate to $8,365 per month during the final year
of the lease term. Biotrol is also responsible for its proportionate share of
common expenses.

     Challenge owns an office and manufacturing facility located at 1100 Bluff
Drive, Osage Beach, Missouri 65065.  The office and manufacturing facility is
approximately 14,000 square feet on 1.2 acres of land.  In addition, Challenge
has 8.8 acres of undeveloped land adjacent to the manufacturing facility.

     Micro's office and manufacturing facility is located at 151 E. Columbine,
Santa Ana, California 92707.  Micro leases the facility under a previously
existing lease from Mr. Ronald G. Coss, currently a director of the Company, at
a monthly rental of $27,383.  The Company's management believes that the monthly
rental is comparable to rents charged for comparable properties in the market
area, but the terms of the lease may not be the same as might have been
negotiated with a third party in an arms' length transaction.  The property upon
which the Micro plant is located contains ground water monitoring devices in
order to comply with applicable California and EPA regulations relating to
activities of a prior owner of the property.  Such monitoring activity has not
to date indicated a requirement for remedial action.  Micro and the Company
require full compliance by the lessor with applicable California and EPA
standards.  See "Item 12 - Certain Relationships and Related Party
            ---                                                   
Transactions."

     OMS' offices and manufacturing facilities are located at 1800 N.W. 169th
Place, Suite C100, Beaverton, Oregon 07005.  OMS leases the facility from an
unrelated third party, at a monthly lease rate of $5,818, with the lease to
terminate on May 31, 1999.

     Pnu-Light's facility for its development operation is located at 3031-1
N.10th Street, Ozark, Missouri 67521.  Pnu-Light leases such facility from an
unrelated third party, on a month to month lease, at a monthly lease rate of
$400.  Management believes that Pnu-Light operations would not be unduly
inconvenienced were Pnu-Light required to relocate its development operation.
In addition, Pnu-Light is a subtenant of Micro for certain production facilities
located at 151 E. Columbine, Santa Ana, California 92707.  Pnu-Light's monthly
rental for its California production facilities is $2,763.  Pnu-Light's cost per
square foot is equal to Micro's cost per square foot under the master lease for
the entire Micro facility.  Currently, Micro is accruing rent not paid by Pnu-
Light in respect of this sub-lease as an intercorporate obligation.

     PDM's administrative office is located at 9197 Greenback Lane, Suite G,
Orangevale, California 95662.  The five dental centers of Pro-Dex are all
located in Sears stores and leased from Sears.  There is no affiliation between
the management of PDM or the Company and the management of Sears.  Sears
provides PDM with unfinished space, which PDM finishes and furnishes as a dental
office.  Sears takes title to all leasehold improvements at the conclusion of
the lease.  PDM leases equipment from an affiliate.  See Item 13.

     PDM leases for dental care offices in Sears premises are as follows:

                                      -14-
<PAGE>
 
Date
Opened    Office, Location, Size and Term
- ------    -------------------------------

1979      Arden Fair Shopping Center, 1601 Arden Way, Sacramento, CA. 1,762
          -----------------------------------------------------------   
          square feet. Lease currently requires monthly payments of $5,090 per
          month, gradually increasing to $5,612 in the final lease year. Lease
          term commenced March 1989 and ends March 31, 1999.

1979      Florin Mall, 5901 Florin Road, Sacramento, CA. 1,034 square feet.
          ---------------------------------------------             
          Lease currently requires monthly payments of $3,236 per month. Lease
          term commenced March 2, 1988 and ends June 30, 1997.     


1984      Sun Valley Shopping Center, 1001 Willow Pass Road, Concord, CA. 1,709
          --------------------------------------------------------------
          square feet. Lease currently requires monthly payments of of $3,675
          per month. Lease term commenced December 1, 1984 and ends April 30,
          1997.

1979      Sunrise Mall, 5900 Sunrise Mall, Citrus Heights, CA. 4,900 square
          ---------------------------------------------------    
          feet. Lease currently requires monthly payments of $6,817 per month.
          Lease term commenced March 2, 1988 and ends June 30, 1997.

1987      Santa Rosa Mall, 100 Santa Rosa Plaza, Santa Rosa, CA. 1,634 square
          -----------------------------------------------------
          feet. Lease requires monthly payments of $3,434 per month. Lease term
          commenced November 24, 1986 and ends February 8, 1997.

Item 3.   Legal Proceedings
          -----------------

     No material legal proceedings are presently pending by or against the
Company.

Item 4.   Submission of Matters to a Vote of Security Holders
          ---------------------------------------------------

     During the year ended June 30, 1996, five proposals were submitted to the
vote of security holders at the Company's annual meeting, held in Boulder,
Colorado on February 27, 1996.  The Company's Transfer Agent served as Inspector
of Elections and reported that the holders of 7,688,044 shares, comprising 89.5%
of the Company's Common Stock voted either by proxy or in person at the meeting.
The shareholders of the Corporation approved the following matters, each of
which was described in further detail in the proxy materials filed with the
Securities and Exchange Commission and transmitted prior to the meeting to the
shareholders of record as of the record date:
 
     Proposal 1.  To convert options to acquire shares in the Company's Micro
     ----------                                                                
subsidiary to options to acquire shares of the Company's common stock under the
1994 Stock Option Plan, pursuant to the Merger Agreement whereby Micro Motors.
Inc. was on July 26, 1996 merged with and into Micro, with 5,872,782 votes in
favor, 52,550 opposed, and 14,200 abstaining.  See "Item 10 - Executive
                                               ---                     
Compensation."

     Proposal 2.  To increase the number of shares authorized in the Company's
     ----------                                                                 
1994 Stock Option Plan, by adding authority to grant options to acquire 1
million shares of Common Stock to such Plan, thereupon totaling 1.5 million
shares allocable to future grants and exercise of

                                      -15-
<PAGE>
 
previously granted options under such Plan, with 5,859,678 votes in favor,
93,813 opposed, and 10,570 abstaining.  See "Item 10 - Executive Compensation."
                                        ---                                    

     Proposal 3.    To increase the number of shares authorized in the Company's
     ----------                                                                 
Directors' Stock Option Plan, by adding authority to grant options to acquire
300,000 shares to such Plan, thereupon totaling 500,000 shares allocable to
future grants and exercise of previously granted options under such Plan, with
6,014,895 votes in favor, 100,458 against, and 13,500 abstaining. See "Item 10 -
                                                                  ---           
Executive Compensation - Compensation to Directors."

     Proposal 4.    To elect To elect Kent E. Searl (with 7,677,423 votes),
     ----------                                                            
Ronald G. Coss (with 7,558,428 votes), Charles E. Strait (with 7,559,018 votes)
and George J. Isaac (with 7,555,872 votes), as members of the Company's Board of
Directors.  See "Item 9 - Management," for biographical information.
            ---                                                     

     Proposal 5.    To ratify selection of McGladrey & Pullen, LLP as the
     ----------                                                          
independent certifying accountants of the Company's financial statements for the
year ending June 30, 1996, with 7,673,928 in favor, 1,098 opposed, and 11,018
abstaining.  See "Item 8 - Changes in Accountants."
             ---                                   

                                    PART II

Item 5.   Market for Registrant's Common Stock and Related Stockholder Matters
          --------------------------------------------------------------------

     The Company's Common Stock is quoted on the NASDAQ, Inc. SmallCap
Market/TM/ under the symbol "PDEX". The range of high and low bid quotations for
each quarterly period during the last two fiscal years of the Company as
furnished by NASDAQ is as follows:

<TABLE>
<CAPTION>
 
     Fiscal Year                        High Bid           Low Bid
     -----------                        --------           -------
     <S>  <C>                           <C>                <C> 
     1995
          First Quarter                 $2 13/16           $1 7/8
          Second Quarter                 2 9/16             2
          Third Quarter                  3                  2
          Fourth Quarter                 2 7/8              2 11/32
                                                             
     1996                                                    
          First Quarter                 $3 1/16            $2 1/4
          Second Quarter                 3 5/8              2 1/8          
          Third Quarter                  4 9/16             3 1/16
          Fourth Quarter                 6                  3 3/4
</TABLE>

     On September 20, 1996, the last sale price of the Common Stock as reported
by NASDAQ was $3.81 per share.  The last sale price reported on NASDAQ on June
30, 1996 was $4.17 per share.

                                     -16-
<PAGE>
 
     The above quotations reflect inter-dealer prices, without retail mark-up,
mark-down or commissions and may not necessarily represent actual transactions.

     At June 30, 1996, the approximate number of holders of record of the
Company's Common Stock was 416.  This number does not include beneficial owners
who hold their shares in a depository trust in "street" name.

     The Company has not paid any cash dividends on its Common Stock and has no
current plan to pay cash dividends on its Common Stock.  Payment of dividends in
the future is dependent upon the financial condition, capital requirements and
earnings of the Company and such other factors as the Board of Directors may
deem relevant.  It is not anticipated that dividends will be paid in the near
future.

Item 6.   Management's Discussion and Analysis
          ------------------------------------

Selected Financial Data
- -----------------------

     The selected financial information presented below is qualified in its
entirety by, and should be read in conjunction with the Company's financial
statements and notes thereto.

                (All amounts in thousands except per share data)

<TABLE>
<CAPTION>
                                           Year ended June 30,

                                  1996            1995            1995
                                               (Proforma)
<S>                               <C>             <C>             <C>
Statement of Income
  Data (1)(2)(3)

     Net sales                $ 20,833        $ 17,500         $ 6,403

     Cost of sales               8,420           7,555           2,649
                              --------        --------         -------

     Gross profit               12,413           9,945           3,754

     Operating expenses          9,889           8,803           3,279
                              --------        --------         -------

     Net operating income        2,524           1,142             475

     Other income (expense)       (980)           (507)             (3)

     Income taxes                  338             161              90
                              --------        --------         -------

     Income from continuing
       operations                1,206             474             382

     Loss from discontinued 
       operation                   (31)           (107)           (107)
                              --------        --------         -------

     Net income               $  1,175        $    367         $   275
</TABLE> 



                                     -17-
<PAGE>
 
____________________
(1)  Includes transactions and balances of Micro Motors, Inc. (acquired July 26,
     1995) and Oregon Micro Systems, Inc. (acquired July 26, 1996), for the
     applicable periods subsequent to such acquisitions. See "Item 7 -
     Consolidated Financial Statements, at Notes 1 and 10.
(2)  Includes adjustments to revenues and income to remove results of
     discontinued operations of PDM, for all years.
(3)  Pro-forma results of operations for 1995 include the effect of the
     acquisition of Micro and OMS as if the acquisitions had occurred on July 1,
     1994. The acquisition of Pnu-Light is excluded because it is not material.

Results of Operations
- ---------------------

     Forward Looking Statements. All forward looking statements in the following
     --------------------------                                            
discussion of management's analysis of results of operation, liquidity and
capital requirements, and the possible effect of inflation, as well as elsewhere
in the Company's Form 10-KSB for the year ended June 30, 1996, are projections
based upon a number of assumptions regarding factors such as (1) market
acceptance of the products and services of each of the subsidiary, including
brand and name recognition for quality and value in each of the Company's
subsidiaries' markets, (2) existence, scope, defensibility and non-infringement
of patents, trade-secrets and other trade rights, (3) each subsidiary's relative
success in achieving and maintaining technical parity or superiority with
competitors, (4) interest rates for domestic and Eurofunds, (5) the relative
success of each subsidiary in attracting and retaining technical and sales
personnel with the requisite skills to develop, manufacture and market the
Company's products, (6) the non-occurrence of general economic downturns or
downturns in any of the Company's market regions or industries (such as dental
products and tools or computer chip manufacture), (7) the relative
competitiveness of products manufactured by the Company's facilities, including
any contractors, in the global economy, (8) the non-occurrence of natural
disasters, (9) a stabile regulatory environment in areas of significance to each
of the Company's subsidiaries, (10) the Company's success in managing its
regulatory relations and avoiding any adverse determinations, (11) the
availability of talented senior executives for the parent and each of the
subsidiaries, (12) the Company's success in finding a suitable buyer for PDM at
a suitable price, and (13) other factors affecting the sales and profitability
of the Company in each of its markets. Should any of the foregoing assumptions
or other assumptions not listed fail to be realized, the forward looking
statements herein may be inaccurate. In making forward looking statements in
this and other Sections of the Company's report on Form 10-KSB, the Company
relies upon recently promulgated policies of the Securities and Exchange
Commission and statutory provisions, including Section 21E of the Securities
Exchange Act of 1934, which provide a safe-harbor for forward looking
statements.

                                     -18-
<PAGE>
 
     On June 24, 1996 the Company decided to sell its dental center operations 
and report the results of PDM as a discontinuing operation. Accordingly, the 
Company's financial statements have been restated to reflect the accounting 
treatment for discontinued operations of the dental centers.

Results of operations, 1996 compared to 1995.
- --------------------------------------------
     Management believes that a comparison of 1996 actual results of operations
to 1995 proforma results of operations will more accurately describe the
activities of the Company for the period. Proforma results of Pnu-Light are not
included in 1995 results of operations because they are not material. A loss of
$73,000 from Pnu-Light's operations is included in the actual 1996 results of
operations. Amortization expense of $200,000 resulting from the Pnu-Light
acquisition will be included in the 1997 results of operations.

     Net sales increased $3,333,000 or 19%, from $17,500,000 in 1995 to
$20,833,000 in 1996. The increase was due primarily to additional marketing
efforts at OMS and a higher demand in the semiconductor industry, as well as the
introduction of a full line of branded dental handpieces by Micro Motors.

     Gross profit increased $2,468,000, or 24.8%, due primarily to an increase
in net sales. Gross profit as a percentage of net sales increased from 56.8% in
1995 to 59.6% in 1996 due to larger sales volume and increased efficiency.

     Operating expenses increased $1,086,000 or 12.2% mainly due to an increase
in sales. Operating expenses as a percentage of net sales decreased from 50.8%
in 1995 to 47.5% in 1996.

     The Company's effective tax rate on income from continuing operations was 
21.9% in 1996 and 19.2% in 1995. The rate was reduced in both years because of a
change in the valuation allowance for deferred tax assets of $432,000 in 1996 
and $90,300 in 1995. Management has provided a valuation allowance related to 
net operating loss carryforwards which cannot be realized until after a two year
period. Management believes the remaining deferred tax assets are more likely 
than not to be realized given their current operating results.

     For 1996, income from continuing operations increased $732,000, a 154.4%, 
from $474,000 in 1995 to $1,206,000 in 1996, primarily due to higher sales and 
gross profit margins.

     Net revenues from the discontinued dental centers decreased from $2,635,000
in 1995 to $2,421,000 in 1996. A decrease of $214,000 or 8.1%. Loss from 
discontinued operations decreased from $107,000 in 1995 to $31,000 in 1996. 
Management does not believe that PDM will incur future operating losses through 
its disposition and that the Company will be able to sell the net assets of this
operation for at least equal to their recorded value.

     Weighted average number of shares increased by 3,643,055 shares mainly due 
to the issuance of approximately 3,700,000 shares to acquire new businesses.

Liquidity and Capital Resources
- -------------------------------

     The operations of the Company are conducted principally through its wholly
owned subsidiaries.  The Company's financial position at June 30, 1996 remains
strong with working

                                     -19-
<PAGE>
 
capital on that date of $5,308,745, compared with $3,445,827 at June 30, 1995.
Cash and cash equivalents totaled $407,722 at June 30, 1996, compared to
$384,968 at June 30, 1995.  The Company provided $1,041,901 in cash from
operations for the year ended June 30, 1996. Net cash used in operations was
$116,310 for year ended June 30, 1995.

     The Company's principal source of liquidity during year ended June 30, 1996
was cash on hand and a net increase in both short and long term borrowings of
$3,611,379. During year ended June 30, 1995, the Company's liquidity was
provided principally from cash on hand, revenues from operations and short term
borrowings.

     On July 26, 1995, The Company borrowed $3.5 Million from FINOVA Capital
Corporation ("FINOVA") in connection with its acquisition of OMS, under a five
(5) year fixed asset secured promissory note, and at the same time entered into
a $1.5 Million line of credit with FINOVA, primarily to provide working capital
for the Micro acquisition, replacing a prior line of credit of Micro Motors with
another institution.  The interest rate under the fixed asset secured promissory
note was prime plus 3 1/2 percent plus an additional annual 5% profit
participation fee calculated on the outstanding loan balance at the beginning of
each year.   In addition, the Company borrowed $500,000 from Air Techniques,
Inc., at an interest rate of prime plus 2%, on an interest only basis for the
first two (2) years.  Both of these loans were repaid on July 26, 1996, when the
Company entered into a loan agreement with Harris Bank.  Upon prepayment of the 
FINOVA debt, the Company incurred a prepayment penalty of $293,200. At June 30,
1996, the Company's Biotrol subsidiary also had a $250,000 line of credit with a
bank, bearing interest at prime plus 1 1/2 percent.

     On July 26, 1996, the Company entered into a credit agreement with Harris
Bank and Trust, N.A., ("Harris Bank") pursuant to which the Company borrowed $6
million for five years, with an interest rate of prime. In addition, the Company
obtained a line of credit permitting it to borrow $4 million at the prime rate
of interest. The Company has the option, at any time, to convert its domestic
rate loans with Harris Bank to an adjusted LIBOR Eurocredit rate of Adjusted
LIBOR plus 1 1/2 to 2 percent, on a sliding scale relating to cash flow ratios
determined under provisions of the credit agreement. The term loan requires
annual prepayments equal to 50% of excess cash flow, as defined, beginning in
October 1997. The credit facility also requires compliance with certain
financial covenants. The obligations to Harris Bank are secured by security
interests in the personal property assets of the Company's subsidiaries and the
Company's intellectual property assets, subject to pre-existing security
interests of Hunter in the OMS patents and the rights of Pnu-Light Tools, in the
event of an unwinding of the Pnu-Light acquisition. As of September 20, 1996,
the Company's outstanding balance on the five year loan was $6 million and on
the line of credit loan was $1 million, and the applicable interest rate for
both loans was 8.25%.

     Management believes that The Company's existing credit resources, including
the credit facility with Harris Bank, as well as internally generated funds
should be sufficient to satisfy the Company's requirements for cash flows for
operations and capital expenditures for fiscal 1997. Capital expenditures for
the Company's operations for the year ended June 30, 1997 are presently
anticipated to be less than $1,500,000.

                                     -20-
<PAGE>
 
Years Ended June 30, 1995 and 1996
- ----------------------------------------

     Net cash provided (used) by operating activities in 1996 was $1,041,901
compared to net cash provided from (used in) operating activities in $(116,230)
in 1995. Net cash was reduced by increases in net accounts receivable of
$644,714 and $1,535,396 in 1995 and 1996, respectively.

     Net cash used in investing activities was $213,686, and $4,674,226 in 1995
and 1996, respectively. Cash used in investing activities primarily related to
the purchase of equipment in 1994 and 1995. Cash used in investing activities
primarily related to acquisition of new subsidiaries in 1996, as well as
purchase of equipment. In 1995 and 1996, the primary purchases of equipment are
associated with new product lines being developed by Challenge and Micro.

     Net cash provided by financing activities was $57,791 and $3,655,079 in
1995 and 1996. In 1994, net cash provided by financing activities was primarily
the result of long-term borrowings. In 1995, net cash provided by financing
activities was primarily the result of short-term borrowings. In 1996, net cash
provided by financing activities was primarily the result of long-term
borrowings, primarily used to fund acquisitions.

Effect of FASB 123. In 1995, the FASB issued Statement No. 123, "Accounting
- ------------------
for Stock-based Compensation." Statement No. 123 suggests, but does not
require, that stock-based compensation transactions with employees be accounted
for based on fair market value of the consideration received or fair market
value of the equity instruments issued, whichever is more reliably measurable.
The Company has elected to adopt FASB Statement 123. Adoption of Statement No.
123 is not expected to have a material impact on the Company's financial
statements. See "Pro-Dex, Inc. Consolidated Financial Statements, Note .1."
            ---  

Impact of Inflation and Changing Prices
- ---------------------------------------

     The industries in which the Company competes are labor intensive, often
involving personnel with high level technical or sales skills.  Wages and other
expenses increase during periods of inflation and when shortages in the
marketplace occur.  The Company expects its subsidiaries to face somewhat higher
labor costs as the market for personnel with the skills sought by the Company
becomes tighter in a period of full employment.   In addition, suppliers pass
along rising costs to the Company's subsidiaries the form of higher prices.
Further, the Company's credit facility with Harris Bank involves increased costs
if domestic interest rates rise or there are other adverse changes in the
international interest rates, exchange rates and/or Eurocredit availability.  To
some extent, the Company's subsidiaries have been able to offset increases in
operating costs by increasing charges, expanding services and implementing cost
control measures. Nevertheless, each of the Company's subsidiaries' ability to
increase prices is limited by market conditions, including international
competition in many of the Company's markets.

     PDM's ability to increase prices is limited by various third-party payors
and governmental agencies, and there can be no assurance that PDM will be able
to raise prices to cover future cost increases, given the impetus toward cost
limitations for dental and other health services.  To the extent permitted by
competition, Biotrol, Challenge, Micro and OMS have passed along increased costs
by increasing prices over time.  In addition, each of the Company's subsidiaries
has continued to implement greater cost control measures to curb increases in
operating costs.

                                     -21-
<PAGE>
 
<TABLE> 
<CAPTION> 

Item 7.   Financial Statements and Supplemental Data
          ------------------------------------------
          <S>                                            <C>  
          Independent Auditor's Report                   F-1
          Balance Sheet                                  F-2
          Statement of Income                            F-4
          Statement of Stockholders' Equity              F-5
          Statement of Cash Flows                        F-6
          Notes to Financial Statements                  F-7
</TABLE>

                                     -22-
<PAGE>
 
                          INDEPENDENT AUDITOR'S REPORT



To the Board of Directors
Pro-Dex, Inc.
Boulder, Colorado



We have audited the accompanying consolidated balance sheet of Pro-Dex, Inc. and
Subsidiaries (the "Company") as of June 30, 1996, and the related consolidated
statement of income, stockholders' equity and cash flows for the year then
ended. These financial statements are the responsibility of the Company's
Management. Our responsibility is to express opinion on these financial
statements based on our audit.

We conducted our audit in accordance with generally accepted auditing standards.
Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statements are free of material
misstatement. An audit includes examining on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion. 

In our opinion, the consolidated financial statements referred to above present
fairly, in all material respects, the financial position of the Company as of
June 30, 1996, and the results of their operations and their cash flows for the
year then ended in conformity with generally accepted accounting principles.



McGladrey & Pullen, LLP



Anaheim, California
August 29, 1996



                                                                             F-1
<PAGE>
 
 
                          INDEPENDENT AUDITOR'S REPORT



To the Board of Directors
Pro-Dex, Inc.
Boulder, Colorado



I have audited the accompanying consolidated statement of income, stockholders'
equity and cash flows for Pro-Dex, Inc. and Subsidiaries (the "Company") for the
year ended June 30, 1995. These financial statements are the responsibility of
the Company's Management. My responsibility is to express opinion on these
financial statements based on my audit.

I conducted my audit in accordance with generally accepted auditing standards.
Those standards require that I plan and perform the audit to obtain reasonable
assurance about whether the financial statements are free of material
misstatement. An audit includes examining on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
I believe that my audit provides a reasonable basis for my opinion.

In my opinion, the consolidated financial statements referred to above present
fairly, in all material respects, the results of operations and cash flows of
the Company for the year ended June 30, 1995, in conformity with generally
accepted accounting principles.



Henry Vanderzee



September 22, 1995


                                                                          F-1(a)

<PAGE>
 
                        PRO-DEX, INC. AND SUBSIDIARIES 

                          CONSOLIDATED BALANCE SHEET
                                 June 30, 1996


ASSETS

<TABLE>
<CAPTION>
<S>                                      <C>
Current assets:
   Cash  & cash equivalents              $   407,722
   Accounts receivable, net                5,069,942
   Inventories, at cost                    4,699,567
   Deferred taxes                            398,300
   Prepaid expenses                          257,898
                                          ---------- 

Total current assets                      10,833,429
                                          ----------

Property and equipment:
   Land                                       61,776
   Buildings                                 308,505
   Equipment                               4,638,479
   Leasehold improvements                    496,367
     Total property and equipment          5,505,127
                                          ---------- 
   Less accumulated depreciation          (2,186,233)
                                          ---------- 
      Net property and equipment           3,318,894
                                          ---------- 
Other assets:
   Deferred taxes                            387,000
   Other                                     133,761
   Intangibles                            13,654,404
                                          ----------
      Total other assets                  14,175,165
                                          ----------
      Total  Assets                      $28,327,488
                                         =========== 
</TABLE>                                                     
        
                                                     F-2
See Notes to Financial Statements
<PAGE>
 
                        PRO-DEX, INC. AND SUBSIDIARIES

                    CONSOLIDATED BALANCE SHEET - CONTINUED
                                 June 30, 1996


LIABILITIES & STOCKHOLDERS' EQUITY
<TABLE>
<CAPTION>
<S>                                                                <C>
Current liabilities:
   Notes payable                                                   $ 1,162,465
   Current portion of long-term debt                                 1,236,570
   Accounts payable                                                  1,039,706
   Accrued expenses                                                  1,330,450
   Income taxes payable                                                547,007
   Deferred revenue                                                    208,485
                                                                   -----------
     Total current liabilities                                       5,524,683

Long-term debt,  net of current portion                              5,371,264
                                                                   -----------
     Total liabilities                                              10,895,947
                                                                   -----------
Commitments and contingencies


Stockholders' equity:
   Series A convertible preferred stock, no par value; 10,000,000
       shares authorized; 78,129 shares issued and outstanding         282,990
   Common stock, no par value; 50,000,000 shares
     shares authorized; 9,025,783 shares issued and outstanding     16,697,660
   Additional paid in capital                                        1,004,541
   Accumulated deficit                                                (532,350)
                                                                    ---------- 
                                                                    17,452,841
   Receivable from employee stock ownership plan (ESOP)                (21,300)
                                                                    ----------
      Total stockholders' equity                                    17,431,541
                                                                    ----------
      Total Liabilities and Stockholders' Equity                   $28,327,488
                                                                   ===========
</TABLE>
                                                                             F-3

See Notes to Financial Statements
<PAGE>
 
                        PRO-DEX, INC. AND SUBSIDIARIES

                       CONSOLIDATED STATEMENTS OF INCOME
                      Years Ending June 30, 1996 and 1995

<TABLE>
<CAPTION>

                                                            1996               1995
                                                            ----               ---- 
<S>                                                     <C>               <C>
Net sales (net of sales from discontinued operation of 
   $2,420,828 and $2,634,850)
                                                        $ 20,833,326       $ 6,402,619

Cost of Sales                                              8,419,733         2,648,809    
                                                        ------------       -----------

Gross Profits                                             12,413,593         3,753,810
                                                        ------------       -----------                  
Operating expenses:
   Selling                                                 3,988,454         2,046,000
   General and administrative                              4,602,711         1,119,700
   Research and development                                  559,369            98,341
   Amortization                                              738,528            14,657
                                                         -----------       -----------   
     Total operating expenses                              9,889,062         3,278,698
                                                         -----------       -----------

Income from operations                                     2,524,531           475,112
                                                         -----------       -----------

Other income (expense):
   Interest income                                            33,367            11,860
   Interest expense                                       (1,025,790)          (61,081)
   Other income, net                                          12,300            46,160
                                                         -----------       -----------
     Total                                                  (980,123)           (3,061)

Income before income taxes and loss from 
   discontinued operation                                  1,544,408           472,051
Income taxes                                                 338,278            90,419
                                                        ------------       -----------   

Income before loss from discontinued operation             1,206,130           381,632
(Loss) from discontinued operation (net of tax benefit)      (31,600)         (106,741)
                                                         ------------       -----------
Net income                                             $   1,174,530     $     274,891
                                                         ============       ===========

Earnings per common and common equivalent share:
   Income from continuing operations                   $        0.14     $        0.07
   (Loss) from discontinued operation                          (0.01)            (0.02)
                                                        ------------       ----------- 
     Net income per share                              $        0.13     $        0.05
                                                        ============       ===========

Weighted average number of common and common 
   equivalent shares outstanding                           8,921,688         5,278,633
                                                        ------------       -----------
</TABLE>

                                                                             F-4
See Notes to Financial Statements
<PAGE>
 
                        PRO-DEX, INC. AND SUBSIDIARIES

                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                      YEARS ENDING JUNE 30, 1996 AND 1995

<TABLE> 
<CAPTION> 
                                Preferred Stock        Common Stock       
                                ---------------        ------------        Additional            
                              Number                 Number                 Paid-In     Accumulated
                            of Shares     Amount   of Shares    Amount      Capital       Deficit         ESOP      Total
                           ----------    -------  ----------  ----------   ---------   ------------      -----   -----------
<S>                         <C>          <C>      <C>         <C>          <C>         <C>               <C>     <C>        
Balances, June 30, 1994        78,129   $282,990   5,261,300  $5,342,445   $  10,000    $(1,981,771)             $ 3,653,664
Exercise of common 
   share warrants                                     20,000       5,000                                               5,000
Net income                                                                                  274,891                  274,891
                           -------------------------------------------------------------------------------------------------
Balances, June 30, 1995        78,129    282,990   5,281,300   5,347,445      10,000     (1,706,880)               3,933,555
Issuance of common shares
   for purchase of 
   Micro Motors, Inc.                              3,350,000   9,212,500                                           9,212,500    
Exercise of common
   share warrants                                     26,000      65,000                                              65,000
Issuance of common shares 
   for purchase of Pnu-Light 
   Tool Works, Inc.                                  368,483   2,072,715     994,541                               3,067,256
Advance to ESOP                                                                                       $(21,300)      (21,300)
Net Income                                                                                1,174,530                1,174,530
                           -------------------------------------------------------------------------------------------------
Balances, June 30, 1996        78,129   $282,990   9,025,783 $16,697,660  $1,004,541     $ (532,350)  $(21,300)  $17,431,541
                           =================================================================================================
</TABLE> 

See Notes to Financial Statements.
- ---

                                                                             F-5
<PAGE>
 
                        PRO-DEX, INC. AND SUBSIDIARIES

                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                      Years Ending June 30, 1996 and 1995

                                                        1996          1995
                                                        ----          ----
CASH FLOWS FROM OPERATING ACTIVITIES
     Net income                                     $ 1,174,530    $ 274,891
     Adjustments to reconcile net income 
      to net cash provided by operating 
      activities:
       Depreciation and amortization                  1,338,165      218,629
       Provision for doubtful accounts                  204,643      352,201
       Loss (gain) on sale of property 
         and equipment                                  (46,116)     (36,032)
     Change in working capital components 
      net of effects from purchase of Oregon 
      Micro Systems, Inc., Micro Motors, Inc., 
      and Pnu-Light Tool Works, Inc.:
       (Increase) decrease in accounts receivable    (1,535,396)    (644,714)
       (Increase) decrease in inventories              (721,386)      63,042
       (Increase) decrease in deferred taxes           (233,600) 
       (Increase) decrease in prepaids                  381,604     (518,231)
       (Increase) decrease in other assets               30,003          (80)
       Increase (decrease) in accounts payable and 
         accrued expense                              (140,900)      161,689
       Increase (decrease) in deferred revenue           53,411       12,295
       Increase (decrease) in income taxes payable      536,943
                                                     ----------     --------
     Net cash provided by (used in) operating  
      activities                                      1,041,901     (116,310)
                                                     ----------     --------

CASH FLOWS FROM INVESTING ACTIVITIES

     Acquisitions of businesses                      (4,326,309)
     Proceeds from sale of property and equipment         7,500          100
     Purchase of property and equipment                (355,417)    (213,706)
                                                     ----------     --------
     Net cash flows (used in) investing activities   (4,674,226)    (213,606)
                                                     ----------     --------

CASH FLOWS FROM FINANCING ACTIVITIES
    Net borrowing on revolving credit agreements        769,279      150,000
    Proceeds from long-term borrowing                 4,022,887
    Principal payments on long term borrowing        (1,180,787)     (97,209)
    Issuance of common stock                             65,000        5,000
    Advances ESOP                                       (21,300)
                                                     ----------     --------
    Net cash flows provided by financing activities   3,655,079       57,791
                                                     ----------     --------

INCREASE (DECREASE) IN CASH                              22,754     (272,125)
CASH, beginning of period                               384,968      657,093
                                                     ----------     --------
CASH, end of period                                 $   407,722    $ 384,968
                                                     ==========     ========
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
     Cash payments for interest                     $ 1,053,447    $  91,928
     Cash payments for income taxes                 $   109,350    $  90,362

                                                                             F-6
See Notes to Financial Statements

<PAGE>

                        PRO-DEX, INC. AND SUBSIDIARIES

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                            JUNE 30, 1996 AND 1995

NOTE 1 - SUMMARY OF ACCOUNTING POLICIES

NATURE OF BUSINESS

Pro-Dex, Inc. (the Company) is the parent of six operating subsidiaries, Pro-Dex
Management, Inc. (PDM), Biotrol International, Inc. (Biotrol), Challenge 
Products, Inc. (Challenge), Micro Motors, Inc. (Micro), Oregon Micro Systems, 
Inc. (OMS), and Pnu-Light Tool Works, Inc. (Pnu-Light). PDM operates fully 
equipped dental offices in Sears retail stores in northern California at which 
general and orthodontic dentistry are offered (Note 11). Biotrol is a 
manufacturer and supplier of infection control products for the dental industry.
Challenge manufactures and sells fluoride products for preventive dentistry, 
along with a complementary line of products used for the cleaning, whitening, 
and protection of teeth. Micro manufactures miniature pneumatic motors used in 
dental, medical, and industrial devices worldwide as well as a complete line of 
dental handpieces. OMS designs, develops and manufactures multi-axis circuit 
boards used to control the motion of servo and stepper motors predominantly used
in the medical testing equipment industry and the computer chip manufacturing 
industry. Pnu-Light developed a patented pneumatic light system for hand tools 
which draws its power from the air that powers the tool. Operations of the 
Pnu-Light subsidiary are currently not material.

PRINCIPALS OF CONSOLIDATION

The consolidated financial statements include the accounts of the Company and 
all of its subsidiaries. All significant intercompany accounts and transactions 
have been eliminated.

CONCENTRATION OF CREDIT RISK

Financial instruments which potentially expose the Company to concentrations of
credit risk consist primarily of trade accounts receivable initiated at the
dental centers.  PDM grants credit to patients of its dental centers,
substantially all of whom are California residents. Credit evaluations of the
patients are performed and, due to the large number of patients, management does
not believe significant credit risks exist.


REVENUE RECOGNITION

Revenue from patient services of general dentistry is recognized as services are
provided. Revenue from patient services of orthodontics dentistry is recognized
at the rate of 75% upon installation of the appliances and the balance over the
treatment period which is estimated to be twenty months.  Revenue on product
sales is recognized upon shipment to the customer.

CASH AND CASH EQUIVALENTS

The Company considers highly liquid investments with a maturity of three months
or less when purchased to be cash equivalents.

                                                                             F-7
<PAGE>
                        PRO-DEX, INC. AND SUBSIDIARIES
 
INVENTORIES

Inventories are stated at the lower of cost or market.  Cost is determined using
the first-in, first-out method. Inventories consist of the following:

  Raw materials                                          $    990,364
  Work in process                                             268,523
  Finished goods                                            3,440,680
                                                          -----------
    Total                                                $  4,699,567
                                                          ===========

PROPERTY AND EQUIPMENT

Property and equipment are stated at cost.  Depreciation is provided using the
straight line method over the estimated useful lives of the assets as follows:
Buildings-- generally 40 years and machinery and equipment-- 3 - 10 years.

INTANGIBLE ASSETS

Intangible assets include patents, organization costs, non-compete contracts and
the cost of net assets acquired in excess of fair value which are amortized on a
straight-line basis over their estimated useful lives ranging from 5 to 20
years.  Intangible assets are stated net of accumulated amortization of
$762,914.

The Company evaluates impairment of its long-lived assets and certain intangible
assets whenever events or changes in circumstances indicate that the carrying
amount of the asset may not be recoverable in accordance with Financial
Accounting Standards Board (FASB) Statement No. 121.  An asset is deemed
impaired if the sum of the expected future cash flows is less than the carrying
amount of the asset.

INCOME TAXES

Deferred income taxes are provided on a liability method whereby deferred tax
assets are recognized for deductible temporary differences and operating loss
and tax credit carryforwards and deferred tax liabilities are recognized for
taxable temporary differences. Temporary differences are the differences between
the reported amounts of assets and liabilities and their tax bases.  Deferred
tax assets are reduced by a valuation allowance when, in the opinion of
management, it is more likely that not that some portion or all of the deferred
tax assets will not be realized.  Deferred tax assets and liabilities are
adjusted for the effects of changes in tax laws and rates on the date of
enactment.

USE OF ESTIMATES

The preparation of financial statements in conformity with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts of assets and liabilities and disclosure of
contingent assets and liabilities at the date of the financial statements and
the reported amounts of revenues and expenses during the reporting period.
Actual results could differ from those estimates.

                                                                             F-8
<PAGE>
                        PRO-DEX, INC. AND SUBSIDIARIES

 
EARNINGS PER SHARE

Earnings per share is based on the weighted average number of common shares and
common share equivalents outstanding during the period.  Common share
equivalents are excluded if their effect is anti-dilutive.  Contingent shares
are excluded if the event which will cause the shares to be issued is not likely
to occur.

NEW ACCOUNTING PRONOUNCEMENT

In 1995 the FASB issued Statement No. 123, "Accounting for Stock-based
Compensation". Statement No. 123, establishes financial accounting and reporting
standards for stock-based employee compensation plans such as a stock purchase
plan. The Statement generally suggests, but does not require, stock-based
compensation transactions with employees be accounted for based on the fair
market value of the consideration received or the fair value of the equity
instruments issued, whichever is more reliably measurable. The Company has
elected to adopt FASB Statement No. 123 for stock-based employee compensation.
Adoption of this pronouncement in fiscal year 1997 is not expected to have a
material impact on the financial statements.

FAIR VALUE OF FINANCIAL INSTRUMENTS

In 1995, the Company adopted Financial Accounting Standards (FASB) Statement No.
107, which requires disclosure about the fair value of the Company's financial
instruments.  The method and assumptions used to estimate the fair value of the
following classes of financial instruments were:  a) Long-term debt:  The
estimated fair value, which approximates the carrying value, is based on
interest rates that are currently available to the company for issuance of debt
with similar terms and remaining maturities.  b)  Note payable:  The carrying
amount approximates fair value since the interest rate changes with the market
interest rate.


NOTE 2 - ACCOUNTS RECEIVABLE

Accounts receivable of Pro-Dex include amounts due for dental services rendered
to patients under an extended term payment arrangement.  General dentistry
billings may be paid over ten monthly installments, and billings for orthodontic
services is paid over a twenty-four month installment arrangement (Note 11).
Accounts receivable are stated net of an allowance for doubtful accounts of
$216,078.

                                                                             F-9
<PAGE>
                        PRO-DEX, INC. AND SUBSIDIARIES 

NOTE 3  -  NOTES PAYABLE  AND LONG-TERM DEBT

The Company through its subsidiaries has established lines of credit with
various lenders as follows:
 
  Revolving credit line of $250,000 at prime plus 1 1/2 %,
    maturing July 1, 1996                                     $    236,180
  Revolving credit line of $250,000 at prime plus 1 1/2 %,
    maturing November 1, 1996  (a)                                 146,000
  Revolving credit line of $1,800,000 at prime plus 2 1/4 %,
    maturing July 26, 1996  (a)                                  1,612,214
  Notes payable other, at various interest rates due
    on demand                                                      126,285
                                                              ------------
                                                                 2,120,679
  Less amounts transferred to long term debt resulting from
    refinancing  (a)                                               958,214
                                                              ------------
      Total notes payable                                     $  1,162,465
                                                              ============
 
 
Long-term debt consist of the following:
 
  Secured term loan bearing interest at 3 1/2 % over prime,
    plus a 5% profit participation fee on outstanding
    balance calculated on the annual anniversary date,
    maturing July, 2000  (a)                                  $  3,018,463
  Unsecured note bearing interest at 2% over the prime 
    rate, maturing July, 1997  (a)                                 500,000
  Secured note, bearing interest at 11%, maturing August, 
    2000, payable at$14,728 per month  (b)                         573,821
  Secured note, bearing interest at 12.25%, maturing
    $40,000 quarterly, including interest to October, 2000    $    504,998
  Loan secured by certain equipment bearing interest at 
    9.1%, maturing $7,096 monthly, including interest to 
    May 30, 1999                                                   217,942
  Mortgage payable secured by land and building, bearing 
    interest at 2% over prime, maturing $1,967 monthly due 
    November 12, 1996. This note is normally renewed for 
    successive one year terms                                      189,599
  Secured notes at various interest rates and various            
    maturities                                                     644,797
                                                              ------------
                                                                 5,649,620
Add amount transferred from short term notes payable
    resulting from refinancing (a)                                 958,214
                                                              ------------
Total                                                            6,607,834
Less current portion                                             1,236,570
                                                              ------------
Long-term debt                                                $  5,371,264
                                                              ============

                                                                            F-10
<PAGE>
                        PRO-DEX, INC. AND SUBSIDIARIES
 
(a)  In July, 1996, the Company obtained a $10,000,000 credit facility from
     Harris Bank secured by all assets of the Company and guaranteed by each of
     the Company's subsidiaries.  The Facility consists of a $6,000,000 term
     loan with a seven year amortization period and a $4,000,000 revolving line
     of credit.  Both facilities require monthly interest payments at the prime
     rate or at a variable interest rate from 1.5% to 2% above the LIBOR rate.
     The term loan requires annual prepayments equal to 50% of excess cash flow,
     as defined, beginning in October 1997.  The credit facility may be prepaid
     without penalty.  The credit facility also requires the maintenance of
     certain financial covenants.  A portion of the proceeds were used to retire
     the existing debt for which the Company incurred a prepayment penalty of
     $293,200. Notes payable and the current portion of long term debt has been
     adjusted to reflect the maturities of the new credit facility.

     Aggregate maturities on long-term debt for each of the next five years is
     as follows: 1997 $1,236,570; 1998 $1,255,637; 1999 $1,230,082; 2000
     $1,171,350; 2001 $891,481 thereafter $822,714.

(b)  These amounts are due to the former owner of Micro Motors and the Company's
     largest stockholder and are subordinated to the bank debt discussed above.

NOTE 5 - COMMITMENTS AND CONTINGENCIES

PDM leases all of its dental centers under lease agreements expiring at various
dates until March, 1999 (Note 11).  Micro Motors leases office and warehouse
facilities from the Company's largest stockholder. The Company and its
subsidiaries also lease other office and warehouse facilities from unrelated
parties under lease agreements expiring from February 1999 through June 2001.
These  leases generally require the Companies  to pay insurance, taxes, and
other expenses related to the leased space.  Total rent expense was $810,763 and
$353,980 including 335,148  and $0, paid to the Company's largest stockholder
for the years ended June 30, 1996 and 1995.  Future minimum lease payments for
the years ending June 30, amount to: 1997 $497,453; 1998 $502,154; 1999
$466,073; 2000 $335,148; and 2001 $248,661. Total of $2,049,489, including
$1,589.253 to the Company's largest stockholder.

The company is currently a  party to disputes which involve or may involve
litigation. Management believes that the ultimate liability, if any, with
respect to these disputes will not be material to the Company's financial
statements.

NOTE 6 - INCOME TAXES

The provision for income taxes for the year ended June 30, 1996 and 1995 is as
follows:

                                                     1996         1995
                                                    -------      ------
  Current federal taxes                         $   451,878   $  55,912
  Current state taxes                               120,000      34,507
  Deferred taxes                                   (233,600)
                                                 ----------    --------
                                                $   338,278   $  90,419
                                                 ==========    ========

                                                                            F-11
<PAGE>
                        PRO-DEX, INC. AND SUBSIDIARIES
 
A reconciliation of expected tax expense to the amount computed by applying the
federal statutory income tax rates to income before income taxes and net loss
from discontinued operations is as follows:

                                                1996          1995
                                             ----------     --------
  Federal income tax computed at the      
   statutory rate                          $   525,100   $  160,500
  Change in valuation allowance               (432,000)     (90,300)
  State income taxes                           120,000       34,507
  Non-deductible items, primarily              
   amortization of goodwill                    139,000
  Other                                        (13,822)     (14,288)
                                           -----------    ---------
                                           $   338,278   $   90,419
                                           ===========    =========
 
Deferred income tax assets in the accompanying balance sheet at June 30, 1996
consist of the following:
 
  Net operating loss carryforwards         $   354,000
  Contract payable                             235,000
  Accrued expenses                             227,000
  Accounts receivable                           82,000
  Intangible assets                             48,000
  Inventories                                   37,000
  Other                                         32,300
                                           -----------
    Total deferred tax assets                1,015,300
  Valuation allowance                         (230,000)
                                           -----------
    Net deferred tax assets                $   785,300
                                           ===========

Net deferred tax assets of $398,300 are included in the accompanying balance
sheet as current assets.  The remaining deferred tax assets of $387,000 are
included in the accompanying balance sheet as long term assets.  Management has
provided a valuation allowance related to net operating loss carryforwards which
cannot be realized until after a two year period.  The ultimate realization of
these assets is dependent upon the Company generating sufficient taxable income
in future years.  Management believes the remaining deferred tax assets are more
likely than not to be realized given their current operating results.

As of June 30, 1996, the Company had federal net operating loss carryforwards of
approximately $1,040,000 which expires $785,000 in 2003 and $255,000 in 2004.
Utilization of these loss carryforwards is limited under income tax rules to
approximately $280,000 per year.

NOTE 7 - STOCK OPTIONS AND WARRANTS

The Board of Directors and the stockholders of the Company have approved and
adopted three plans, pursuant to which options to purchase 2,150,000 shares of
common stock can be granted to officers, directors, employees and to others
expected to provide significant services to the Company.  As of June 30, 1996
options and warrants to purchase 1,279,376 shares of the Company's common stock
are outstanding and exercisable.  There are 870,624 shares remaining in  the
option plans which are available for grant in future years.

                                                                            F-12
<PAGE>
                        PRO-DEX, INC. AND SUBSIDIARIES
 
Transactions involving the stock options and warrants  are summarized as
follows:
<TABLE>
<CAPTION>
 
                                                   1996                         1995
                                                   ----                         ----
                                            Shares        Price          Shares       Price
                                          ----------  -------------     -------  -------------
<S>                                       <C>         <C>               <C>      <C>
  Outstanding at beginning                  372,856   $0.25 - $2.85     171,102  $0.25 - $2.50
  Granted (a)(b)                            906,520   $2.50 - $2.75     201,754  $2.50 - $2.85
  Exercised                                   -               $2.50        -              -
                                          ----------                    -------  
  Outstanding at ending                   1,279,376   $0.25 - $2.85     372,856           -
                                          ==========                    =======
  Average price outstanding                   -               $2.62        -             $2.62
  Available for grant at June 30            870,624         -           477,144           -
                                          ==========                    =======
</TABLE>
(a) Includes 591,190 options granted to owners of Micro options, upon conversion
of such options on approval of the Company's shareholders.

(b) Does not include outstanding warrants to acquire 113,000 shares,
exercisable at an average price $1.75.

NOTE 8 - PREFERRED STOCK

Holders of Series A preferred stock have no voting, dividend, or redemption
rights.  In the event of liquidation or dissolution, preferred stockholders are
entitled to receive $3.60 per share.  Each share of preferred stock is
convertible into one share of common stock at the option of the holder.

NOTE 9 - EMPLOYEES' BENEFIT PLANS

The Company has adopted an employee benefit plan under Section 401(k) of the
Internal Revenue Code.  The plan allows employees to make contributions up to a
specified percentage of their compensation.  Under the plan, the Company is
obligated to match up to 25% of the employees' contribution up to a defined
maximum. For the year ended June 30, 1996 the Company contributed $36,232  as a
matching contribution to the 401(k) plan.  No contributions were required for
1995.

In 1973, Micro established an Employee Stock Ownership Plan (ESOP), whose shares
of stock in Micro, upon acquisition of Micro by the Company, were converted to
restricted Company shares of common stock.  For the years ended June 30, 1996
and 1995, the Company did not make any contributions to the ESOP.  In the event
terminated Plan participants desire to sell their shares of the Company's stock,
or for certain employees who elect to diversify their account balances, the
Company may be required to  purchase the shares from the participant at their
fair market value or loan sufficient funds to the ESOP to enable it to do so.
This provision will lapse when the restriction on the common stock held by the
ESOP is removed in July, 1997.  During the year ended June 30, 1996, the Company
advanced funds to the ESOP  totaling $21,300 in order for it to purchase stock
from Plan participants.  The value of the stock owned by the Plan at June 30,
1996 based  on the average of the bid and asked price of the Company's stock was
approximately $4,399,200.

OMS adopted a Defined Benefit Pension Plan.  Upon the merger the Plan was
terminated by the Company and all benefits to participants were frozen effective
July 26, 1995. Information related to this plan is not material to the financial
statements of the Company.

                                                                            F-13
<PAGE>
                        PRO-DEX, INC. AND SUBSIDIARIES
 
NOTE 10 - BUSINESS ACQUISITIONS

On July 26, 1995, the Company acquired for cash all of the outstanding shares of
Oregon Micro Systems, Inc., a manufacturer of multi-axis motion control circuit 
boards. In addition to the OMS stock, the Company acquired two letters patent 
for the design of multi-axis motion control circuit boards with an approximate 
value of $2,925,000. The total acquisition cost was approximately $6,700,000. 
The excess of the total acquisition cost over the fair value of the net assets 
acquired was approximately $90,000 and is being amortized over a 15 year period.
The patents are being amortized over seven (7) years by the straight line 
method.

Also on July 26, 1995, Micro Motors, Inc., a manufacturer of patented miniature 
pneumatic (air) motors, and dental handpieces was acquired in exchange for 
3,350,000 shares of the Company's stock. The amount assigned to the shares of 
the Company stock was $2.75 per share making the total acquisition price 
$9,212,500. The excess of the total acquisition cost of Micro Motors, Inc. over 
the fair value of the net assets acquired of approximately $7,300,000 is being 
amortized over 20 years by the straight line method.

On May 11, 1996, the Company acquired certain assets and liabilities of Pnu-
Light Tool Works, Inc., a developer of pneumatic light mechanisms for hand
tools, for common stock. The purchase agreement calls for the final purchase
price to be determined based upon a multiple of the Company's net income
generated for the year ended June 30, 1999 and based upon the then current
market price of the Company's common stock. The agreement states that the
minimum value assigned to the net assets purchased is $4,000,000 subject to
certain adjustments. The agreement also provides that if the computed value
based on the prescribed formula does not exceed $4,000,000, the Company has the
option to rescind the transaction. The Company issued 368,483 shares of stock at
acquisition. The Company has recorded the net assets acquired at the present
value of the estimated minimum purchase price of approximately $3,070,000. The
excess of the total acquisition cost of Pnu-Light over the fair value of the net
assets acquired of approximately $1,100,000 is being amortized over a 15 year
period by the straight-line method.

All acquisitions have been accounted for as a purchase and the results of 
operations of Oregon Micro Systems, Inc., Micro Motors, Inc., and Pnu-light Tool
Works, Inc., since the date of acquisition are included in the consolidated 
financial statements.

Unaudited pro-forma consolidated results for the years ended June 30, 1996 and 
1995 as though the acquisitions had occurred on July 1, 1994 is as follows:

<TABLE>
<CAPTION>
                                             1996          1995
                                             ----          ----
<S>                                       <C>           <C>
  Net Sales                               $21,650,000   $17,500,000
  Net income                                1,026,000        33,000
  Earnings per share                      $      0.11   $      0.00
</TABLE>

Additional information regarding cash flows from these acquisitions is as 
follows:

<TABLE>
<CAPTION>
                                   Micro Motors     OMS       Pnu-Light         Total
                                   ------------  ----------  -----------    -------------
<S>                                <C>           <C>         <C>            <C> 
  Working capital acquired net of
    cash and cash equivalents      $   413,068   $1,348,074  $    16,506    $   1,777,648
  Fair value of long-term assets    10,429,486    3,424,724    3,271,719       17,125,929
  Long-term debt assumed            (1,590,988)    (480,327)    (226,195)      (2,297,510)
  Issuance of common stock          (9,212,500)        -      (3,067,258)     (12,279,758)
                                   -----------   ----------   ----------     ------------
                                   $    39,066   $4,292,471   $   (5,228)    $  4,326,309
                                   ===========   ==========   ==========     ============
</TABLE> 

                                                                            F-14
<PAGE>

                        PRO-DEX, INC. AND SUBSIDIARIES

          NOTE 11 - SEGMENT INFORMATION AND DISCONTINUED OPERATIONS 
 
A summary of information about the Company's continuing operations by segment 
follows:
 
 
                                               Fiscal years ended June 30,
                                                    1996        1995
                                               ------------ -------------
Revenues
  Infection control products                   $ 4,721,561   $ 4,888,054
  Preventative dentistry products                1,661,736     1,514,565
  Medical/dental equipment                       7,491,047           --
  Industrial                                     1,646,334           --
  Circuit boards                                 5,312,648           --
                                               ------------ -------------
                                               $20,833,326   $ 6,402,619
                                               ============ ============ 
 Income (loss) from operations
  Infection control products                   $   304,554   $   426,852
  Preventative dentistry products                      180        48,260
  Medical/dental equipment                         225,050           --
  Industrial                                       (19,855)          --
  Circuit boards                                 2,014,602           --
                                               ------------ -------------
                                               $ 2,524,531   $   475,112
                                               ============ =============
Assets
  Infection control products                   $ 1,907,581   $ 1,656,676
  Preventative dentistry products                1,156,563     1,165,244
  Medical/dental equipment                      11,492,974           --
  Industrial                                     6,029,790           --
  Circuit boards                                 5,077,633           --
                                               ------------  ------------
                                               $25,664,541   $ 2,821,920
                                               ============  ============ 
Depreciation and amortization
  Infection control products                   $    53,161   $    55,082
  Preventative dentistry products                  105,539        96,847
  Medical/dental equipment                         573,842           --
  Industrial                                       153,392           --
  Circuit boards                                   377,903           --
                                               ------------  ------------ 
                                               $ 1,263,837   $   151,929
                                               ============  ============
Capital Expenditures
  Infection control products                   $    51,832   $    96,860
  Preventative dentistry products                   35,087       113,307
  Medical/dental equipment                         110,397           --
  Industrial                                        23,965           --
  Circuit boards                                    54,937           --
                                               ------------  ------------
                                               $   276,218   $   210,167
                                               ============  ============



The Company incurred advertising expenses of $581,358 in 1996 and $145,050 in 
1995.
 
 

                                                                            F-15
<PAGE>
                        PRO-DEX, INC. AND SUBSIDIARIES

On June 24, 1996, the Company decided to report the operations of PDM on a 
discontinued basis and expects to sell that line of business. The Company 
believes that PDM will not incur future operating losses through its disposition
and that the Company will be able to sell the net assets of this operation for 
at least equal to their recorded value. Management's current plans are to sell 
various assets of PDM and to provide financing to the buyer of the assets.

Sales of PDM were approximately $2,420,000 for 1996 and $2,635,000 for 1995. 
Operating expenses were approximately $2,466,000 and $2,797,000 for 1996 and 
1995. These amounts are presented in the statement of operations as discontinued
operations, net of applicable income tax benefits of approximately $14,000 and 
$55,000 for 1996 and 1995.

At June 30, 1996, the net assets of PDM consists of the following:

<TABLE>
<CAPTION>
<S>                                            <C>
  Receivables                                  $ 1,867,000
  Inventories                                      262,000
  Depreciated cost of equipment                    320,000
  Current liabilities                             (230,931)
  Deferred revenues                            $  (208,485)
</TABLE>

                                                                            F-16

<PAGE>
 
Item 8.   Changes in and Disagreements with Accountants on Accounting and
          ---------------------------------------------------------------
Financial Disclosures
- ---------------------

     During the year ended June 30, 1996, the Company changed its certifying
accountant. Effective November 3, 1995, Henry Vanderzee ceased to serve as the
independent accountant to audit the Company's financial statements.  Mr.
Vanderzee served as the Company's independent certifying accountant for the
fiscal years ended June 30, 1995 and June 30, 1994, as well as prior years.  The
former accountant was removed by action of the Board of Directors, effective
November 3, 1995.  On such date, the Board of Directors appointed McGladrey &
Pullen, L.L.P. as the Company's independent certifying accountant for its
financial statements for the year ended June 30, 1996.  McGladrey & Pullen,
L.L.P. had audited the financial statements of Oregon Micro Systems, Inc. and
Micro Motors, Inc., two subsidiaries acquired by the Company on July 26, 1995,
for the fiscal years of such companies ended March 31, 1995.   Shareholders
ratified the appointment of McGladrey & Pullen, L.L.P. at the Annual Meeting of
Shareholders on February 27, 1996.

     The accountants' report on the Company's financial statements for the year
ended June 30, 1996, and the former accountant's report on the financial
statements for the years ended June 30, 1995 and June 30, 1994, contained no
adverse opinion or disclaimer of opinion, and none of such reports was qualified
or modified as to uncertainty, audit scope or accounting principals.  During the
years ended June 30, 1994 and June 30, 1995, and the subsequent interim period
preceding resignation of the former accountant, there were no disagreements with
the former accountant on any matter of accounting principles or practices,
financial statement disclosure or audit scope or procedure.  During the year
ended June 30, 1996, there were no disagreements with McGladrey and Pullen,
L.L.P. on any matter of accounting principles or practices, financial statement
disclosure, or audit scope or procedures.  The Company's Board of Directors has
requested that McGladrey Pullen, L.L.P. serve as the Company's certifying
accountants for the year ending June 30, 1997, and that firm has consented to so
serve.

                                     -23-
<PAGE>
 
                                   PART III

Item 9.  Directors, Executive Officers and Control Persons; Compliance with
         ------------------------------------------------------------------
         Securities Exchange Act of 1934
         -------------------------------

Officers and Directors
- ----------------------

       As of June 30, 1996, the officers and directors of the Company were as
follows:

<TABLE>
<CAPTION>
 
 
         NAME           AGE             POSITION
- ----------------------  ---  -------------------------------
<S>                     <C>  <C>
 
Kent E. Searl            55  Chairman of the Board, Director
 
Ronald G. Coss           59  Vice Chairman, Director
 
Charles E. Strait        48  President, Director
 
George J. Isaac          51  Vice President, Director
 
Richard N. Reinhardt     64  Director
 
Robert A. Hovee          54  Director
 
John B. Zaepfel          60  Director
 
</TABLE>

          Kent E. Searl is a co-founder of the Company and served as President
          -------------                                                       
until July 1995.  He has served as a director of the Company or its predecessor
since its inception in 1978.  In addition to serving as Chairman of the Board,
Mr. Searl is an ex officio non-voting member of the Compensation Committee of
the Board of Directors.  Since August 1969, he has also served as Chairman of
the Board of Directors of Professional Sales Associates, Inc. ("PSA"), a
national dental equipment manufacturers' representative, which he co-founded.
PSA began marketing products of Micro Acquisition subsidiary in 1995 and had
marketed dental equipment products of Micro Motors prior to the merger.  Mr.
Searl currently also serves as an officer and director of two other businesses.
Mr. Searl was elected by the shareholders of the Company to serve as a Class III
Director until June 30, 1999 or the election and qualification of his successor.

          Ronald G. Coss founded Micro Motors in 1971 and has served as its
          --------------                                                   
Chairman since inception.  Mr. Coss has served as the Vice Chairman of the
Company's Board of Directors since July 26, 1995, and is currently serving as
President of Micro, pending selection of a successor. Mr. Coss also serves as an
ex officio non-voting member of the Audit Committee of the Board of Directors.
Mr. Coss has been the primary engineer in development of Micro's products since
its

                                     -24-
<PAGE>
 
inception and invented the technologies which are the subject of the letters
patent now owned by Micro.  Mr. Coss is currently one of the Trustees of the
Micro Motors Employee Stock Ownership Plan, a shareholder of the Company.  Mr.
Coss was elected by the shareholders of the Company, to serve as a Class III
Director until June 30, 1999 or the election and qualification of his successor.

          Charles E. Strait has served as the President of Micro Motors, Inc.
          -----------------                                                  
since 1991, began serving on that company's Board of Directors in 1991 and
became a member of the Company's Board of Directors on July 26, 1995. He has
extensive financial consulting experience and served as managing partner of The
Westhaven Group, a management consulting firm specializing in strategic
planning, acquisition analysis and management team building in Westminster,
California. Mr. Strait received his B.S. in Business Administration from Loyola
University of Los Angeles with a dual major in General Management and Finance.
Mr. Strait was elected by the shareholders of the Company, to serve as a Class I
Director until June 30, 1998 or the election and qualification of his successor.

          George J. Isaac has served as a consultant to the Company and its
          ---------------                                                  
predecessor since 1978, and became a member of the Company's Board of Directors
on July 26, 1995.   He serves as an ex officio member of both the Audit
Committee and the Compensation Committees of the Board of Directors, and is Vice
President, Secretary and Chief Financial Officer of the Company.  Mr. Isaac has
been a certified public accountant with Joseph B. Cohan and Associates,
Worcester, Massachusetts since 1969, became a partner in 1977 and served as its
president from 1991 to 1996. He is a member of the Board of Directors of
Professional Sales Associates, Inc. and the Commerce Bank and Trust of
Worcester, MA, and recently completed a term as a member of the Board of
Directors of the Medical Center of Central Massachusetts.  Mr. Isaac's
accounting firm specialized in handling medical and dental related accounts.
Mr. Isaac received a B.S. in Business Administration from Clark University in
Worcester, Massachusetts.  Mr. Isaac was elected by the shareholders of the
Company, to serve as a Class I Director until June 30, 1998 or the election and
qualification of his successor.

          Richard N. Reinhardt has served as a Director of the Company and its
          --------------------                                                
predecessor since 1990.  He is a member of the Audit Committee and the
Compensation Committee of the Board of Directors.  Mr. Reinhardt has served as
President and director of Professional Sales Associates, Inc. ("PSA") since he
co-founded that firm in 1969.  PSA is a national manufacturers' representative
organization that represents manufacturers in the dental equipment market.  Mr.
Reinhardt  was elected by the shareholders of the Company, to serve as a Class
II director until June 30, 1997 or the election and qualification of his
successor.

          Robert A. Hovee began serving on the Company's Board of Directors on
          ---------------                                                     
February 27, 1996.  He serves as a member of both the Audit Committee and the
Compensation Committee. Currently, Mr. Hovee serves as President of the Orange
County Biomedical Industry Council and the Orange County Biocommerce
Association, both California non-profit associations.  Formerly Mr. Hovee was
Chief Executive Officer and President of Life Support Products, Inc. a maker of
emergency medical products of which he was a co-founder, prior to its
acquisition by Allied Healthcare Products, Inc.  He has also served as a
director and chairman of Infrasonic, Inc., an

                                     -25-
<PAGE>
 
infant respirator manufacturer.  Mr. Hovee, who is active in many charities,
serves as a co-chair of a University of California-Irvine Center for the Health
Sciences fund-raising project.  Mr. Hovee received a B.A. in Business
Administration and a B.A. in Business Administration-International Business from
the University of Washington, Seattle, Washington as well as a Bachelor of
Foreign Trade and a Master of Foreign Trade from the American Graduate School of
International Management (Thunderbird) in Glendale, Arizona.  Mr. Hovee was
elected by the Board of Directors, to serve as a Class II Director until the
first to occur of the next shareholders' meeting, June 30, 1997 or the election
and qualification of his successor.

          The following additional individual has been elected to serve as a
member of the Board of Directors since June 30, 1996:

          John B. Zaepfel has served as director of the Company since August 27,
          ---------------                                                       
1996, and commenced service on the Company's Compensation and Audit Committees
on September 16, 1996. Previously, Mr. Zaepfel served on the advisory committee
advising the Board of Directors of Micro Motors, Inc., prior to its merger into
Micro in July of 1995. Mr. Zaepfel spent fifteen years as the Chief Executive
Officer of CPG International, Inc., which he founded in 1985 in a leveraged buy-
out of a division of a wholly owned subsidiary of Times Mirror, Inc. Prior to
its private sale in 1989, CPG International, Inc. was a $90 million operating
company, manufacturing and marketing art, engineering and media supplies. Prior
to forming CPG International, Inc., Mr Zaepfel was President and CEO of Chartpak
and Picket Industries, wholly owned subsidiaries of Times Mirror, Inc. Mr.
Zaepfel previously served as a director of Ideal School Supplies, Inc., when it
was a publicly traded company, and was director of six privately held companies.
Currently, Mr. Zaepfel is Chairman of the Board of Acordia of Southern
California, a wholly owned subsidiary of Anthem, Inc., listed on the New York
Stock Exchange, Inc. Mr. Zaepfel also previously served as a director of
Varitronics, Inc. previously quoted on NASDAQ and currently serves as a director
of Remedy Temp, Inc., a public company quoted on NASDAQ, Inc. Mr. Zaepfel
is a graduate of the University of Washington and holds a Master in Business
Administration from the University of Southern California. Mr. Zaepfel was
elected by the Board of Directors, to serve as a Class II Director until the
first to occur of the next shareholders' meeting, June 30, 1997 or the election
and qualification of his successor.

Business Experience of Key Management of Subsidiaries.
 ------------------------------------------------------ 

          Set forth below is information concerning certain key management
personnel of the Company's operating subsidiaries:

          Dr. M. Larry Kyle has served as Vice President and Chief Executive
          -----------------                                                 
Officer of PDM since its inception as a dental clinic management business in
1978.  He is a licensed dentist in the State of California and is responsible
for PDM's relationships with its independent contractor dentists and for
supervision of administration of PDM's dental centers.  Dr. Kyle served as a
director of the Company and its predecessor from 1990 through 1995.

                                     -26-
<PAGE>
 
          Charles J. Bull founded Challenge Products, Inc. in 1978 and has
          ---------------                                                 
served as its President, and Chief Executive Officer since its inception as a
dental products business.  Mr. Bull has developed more than 40 chemical products
used in the industry, as well as a process for high speed filling of a patented
prophy ring.  See "Item 12 - Certain Relationships and Related Party
              ---                                                   
Transactions."

          Gary Garleb has served as Vice President and General Manager of OMS,
          -----------                                                         
since it was acquired by the Company in July of 1995.  Prior to that time, he
served as Vice President for Operations and Manufacturing of Micro Motors from
1974 to 1995.  Mr. Garleb is currently a Trustee of the Micro Employee Stock
Ownership Plan ("Micro ESOP"), a shareholder of the Company, which has demand
registration rights in respect of its restricted shares.

          Rick Coss has served as Director of Corporate Development for the
          ---------                                                        
Company, since October 1995.  Mr. Coss had served as a Vice President of Micro
Motors, prior to its July 26, 1995 acquisition by Micro.  His current
responsibilities include development of training programs, coordination of
information systems and special projects.  Mr. Coss holds a B.A. from the
University of California.  Mr. Coss' father is Mr. Ronald G. Coss, the Company's
Vice Chairman.

          Carl Chestelson has served as Chief Financial Officer of Micro or its
          ---------------                                                      
predecessor since 1982.  Mr. Chestelson holds a B.A. degree in Business
Administration from California State University-Northridge.  Mr. Chestelson is
currently one of the Trustees of the Micro ESOP.


Compliance with Section 16
- --------------------------

     Based solely upon its review of Forms 3, 4, and 5 and written
representations of officers and directors, the Company is not aware of any
failure of any officer, director or owner of 10% or more of the outstanding
securities of the Company to make timely filings in accordance with the
requirements of Section 16.

Item 10.  Executive Compensation
          ----------------------

          The following table summarizes executive compensation paid by the
Company during the last three fiscal years to the Company's Chairman and the
four other most highly compensated executives.

                                     -27-

<PAGE>
 
<TABLE>
<CAPTION>
                          SUMMARY COMPENSATION TABLE

                                      Annual Compensation                          Long Term Compensation
                                      -------------------                          ----------------------
                                                                                    Awards            Payouts
                                                                                    ------            -------
 
                                                              
                                                     Other                                                      
                                                     Annual     Restricted   Securities              All Other  
Name and                                            Compen-       Stock      Underlying     LTIP      Compen-   
Principal Position         Year   Salary   Bonus  sation /(1)/    Awards    Options/SAR    Payouts  sation /(7)/
- ------------------         ----  --------  -----  ------------  ----------  -----------    -------  ------------

<S>                        <C>   <C>       <C>    <C>           <C>         <C>            <C>      <C>
Kent E. Searl              1996  $150,000     -         -            -      100,000 /(3)/      -          -
Chairman and Chief         1995  $   0.00     -         -            -       50,000            -          -
Executive Officer/(2)/     1994  $   0.00     -         -            -       52,051            -          -

Ronald G. Coss             1996  $360,000     -         -            -         None            -          -
Vice Chairman /(4)/        1995  N/A          -         -            -          N/A            -          -
                           1994  N/A          -         -            -          N/A            -          -

Charles E. Strait          1996  $175,000     -         -            -          None/(5)/      -          -
President,                 1995  N/A          -         -            -          N/A            -          -
Director/(5)/              1994  N/A          -         -            -          N/A            -          -
 
George J. Isaac            1996  $170,000     -         -            -       200,000/(3)/      -          -
Vice President,            1995  N/A          -         -            -        50,000           -          -
Chief Financial            1994  NA           -         -            -           -             -          -
Officer, Secretary-
Treasurer,
Director /(6)/
 
Dr. M. Larry Kyle          1996  $114,000     -         -            -         None            -          -
 President of PDM          1995  $114,672     -         -            -        50,000           -          -
 Subsidiary                1994  $106,120     -         -            -        50,000           -          -
</TABLE>
______________________
(1)  The aggregate amount of perquisites or other personal benefits received by
     any officer or director for which no other annual compensation is indicated
     did not exceed the lesser of $50,000 or 10% of such officer or director's
     annual salary.
(2)  Mr. Searl received no compensation from the Company during the fiscal years
     ended June 30, 1995 and 1994.  Mr. Searl was granted options under the 1994
     Stock Option Plan in 1995 and under the Directors' Stock Option Plan in
     1994.
(3)  Options in the amount of 100,000 and 200,000 shares were granted to Messrs.
     Searl and Isaac, respectively during the Company's fiscal year ended June
     30, 1996, under the 1994 Stock Option Plan.
(4)  Mr. Coss received no compensation from the Company prior to the year ending
     June 30, 1996, as he was not then an employee of the Company and did not
     serve on its Board of Directors.  The Company is also obligated to pay Mr.
     Coss $1 million over five years, commencing on July 26, 2001, under a Non-
     Competition Agreement in connection with the merger of Micro Motors with
     and into the Company's Micro Acquisition subsidiary.  In addition, the
     Company assumed two notes

                                     -28-
<PAGE>
 
     of Micro Motors payable to Mr. Coss in the aggregate amount of $938,450,
     relating to termination of Mr. Coss' long term employment agreement with
     Micro Motors and prior unpaid earned compensation.
(5)  Mr. Strait received no compensation from the Company prior to the current
     fiscal year ending June 30, 1996, as he was not then employed by the
     Company and did not serve on its Board of Directors. Mr. Strait, as
     President of Micro Motors, was compensated at a salary of $151,123 for the
     fiscal year ended March 31, 1995 and $140,961 for the fiscal year ended
     March 31, 1994.  The options set forth in this chart do not include the
     Micro Options granted in July of 1994, which were converted to options to
     acquire 295,560 shares of the Company's common stock, under the 1994 Stock
     Option Plan, pursuant to the vote of Shareholders at the Company's annual
     meeting on February 27, 1996.
(6)  Mr. Isaac received no compensation from the Company prior to the current
     fiscal year ending June 30, 1996, as he was not then employed by the
     Company and did not serve on its Board of Directors. During the fiscal year
     ended June 30, 1995, Mr. Isaac was granted options to acquire 50,000 shares
     under the 1994 Stock Option Plan, in connection with his acceptance of
     employment by the Company.  See also note 3 to this chart.
(7)  Employer contributions to the Pro-Dex, Inc. 401(k) Plan.


Employment Agreements
- ---------------------

     Effective July 26, 1995, the Company entered into long term employment
agreements with a number of its executive officers and extended existing
employment agreements with certain other officers.  The Company paid salaries in
an aggregate amount of $1,080,000 for all its officers and directors for the
year ending June 30, 1996.

     Approximately 49.5% of executive compensation paid during the year ending
June 30, 1996 was paid to two officers of the Company who were officers of Micro
Motors prior to its merger with and into Micro.  In connection with the closing
of the merger of Micro Motors with and into Micro, the Company agreed to pay
compensation for the year ending June 30, 1996 of $360,000 and $175,000,
respectively, to Messrs. Ronald G. Coss and Charles E. Strait, the former
Chairman and President respectively of Micro Motors, who now serve as Vice
Chairman and President of the Company.  Mr. Coss had been compensated by Micro
Motors at a salary of $560,000 for the fiscal year ending March 31, 1995 and
$456,000 for the fiscal year ending March 31, 1994.  Compensation to Mr. Coss
under the employment agreement is adjustable upward for inflation each July 1 of
the five year term of his employment agreement.  On July 1, 1996, Mr. Coss'
salary was adjusted to provide that he will be paid $363,000, not including
other benefits, payments or compensation, for the year ending June 30, 1997.
Mr. Coss' employment agreement is renewable until terminated.

     In addition to compensation to Mr. Coss under his employment agreement, the
Company is obligated to pay Mr. Coss $1 million over five years, commencing on
July 26, 2001 under a Non-Competition Agreement in connection with the merger of
Micro Motors with and into the Company's Micro subsidiary.  Upon the merger, the
Company also assumed two notes payable by Micro Motors to Mr. Coss in the
aggregate amount of $938,450, relating to termination of Mr.

                                     -29-
<PAGE>
 
Coss' long term employment agreement with Micro Motors and prior unpaid earned
compensation. See "Item 12 Certain Relationships and Related Party
              ---                                                 
Transactions."

     In addition to the direct compensation Mr. Coss is to receive under his
employment agreement with the Company, he is to have reimbursement of reasonable
travel and entertainment expenses, a vehicle and auto expenses for business use,
country club dues and reasonable country club expenses, annual physical with a
prior recuperative period and paid accommodations, and six weeks annual leave.
In the event Mr. Coss does not use all or part of his six weeks annual leave,
his employment agreement permits him to elect to be paid cash in lieu of leave
not taken.  Mr. Coss is required to reasonably forecast the amount of any cash
in lieu of leave, for purposes of the Company's financial forecasts.  Mr. Coss
did not notify the Company that he elected to be paid cash in lieu of leave not
taken during the year ending June 30, 1996 and has indicated that he is unable
to forecast his leave for the year ending June 30, 1997.

     On July 26, 1995, the Company entered into a long-term employment agreement
with Kent E. Searl, its Chairman.  Until such date, Mr. Searl had received no
compensation for his services to the Company, other than grant of options
exercisable at the last bid price as of the date of grant. During the year ended
June 30, 1995, Mr. Searl was granted options to acquire 50,000 shares of the
Company's Common Stock, under the 1994 Stock Option Plan.  On November 21, 1994,
Mr. Searl was granted options to acquire 100,000 shares, under the 1994 Stock
Option Plan, exercisable at the last bid price on the date of grant.  Mr. Searl
is officed in the Company's headquarters offices in Boulder, Colorado, and
travels frequently to all the Company's subsidiaries.  Under his employment
agreement with the Company, Mr. Searl was paid $150,000 for the year ended June
30, 1996.  His salary under the employment agreement is to be $160,000 per annum
through June 30, 1997, and $170,000 per annum for the remainder of the three
year term of his employment agreement. The employment agreement accords Mr.
Searl three weeks annual leave, but provides for no alternative of cash in lieu
of leave untaken. In addition, Mr. Searl's employment agreement provides that he
may receive use of a car at Company expense, although to date Mr. Searl has
received limited reimbursement for use of a vehicle not provided by the Company.
Mr. Searl is also entitled to such other benefits as the Company's Board of
Directors determines to offer the Company's executive employees, and
reimbursement of reasonable expenses.

     On July 26, 1995, Mr. Charles E. Strait entered into a long term employment
agreement with the Company.  Currently, Mr. Strait serves as the Company's
President and is officed in the facilities occupied by the Company's Micro
subsidiary, but travels frequently to all of the Company's subsidiaries and its
Boulder, Colorado headquarters.  The employment agreement provides that Mr.
Strait's salary as the Company's President and Chief Operating Officer will be
$175,000 annually through June 30, 1996, $185,000 July 1, 1996 through June 30,
1997, and $195,000 for the remainder of the three year term of the employment
agreement.  Mr. Strait was compensated by Micro Motors at a salary of $151,123
for the fiscal year ending March 31, 1995 and $140,961 for the fiscal year
ending March 31, 1994.   On February 27, 1996, the Company's shareholders voted
to convert certain Micro Motors options previously held by Mr. Strait into

                                      -30-
<PAGE>
 
options to acquire 295,560 options of the Company's common stock.   Mr. Strait's
employment agreement provides for three weeks annual leave, but does not permit
Mr. Strait to elect to receive cash in lieu of leave untaken.  Mr. Strait's
employment agreement provides that he may receive use of a vehicle at Company
expense and the Company has leased a vehicle primarily for his use in business.
Mr. Strait is also to receive reimbursement of reasonable expenses in connection
with his employment and such other benefits as the Company's Board of Directors
determines to make available to the Company's executive employees.

     On July 26, 1995, George J. Isaac began serving as the Company's Vice
President and Chief Financial Officer, and on September 21, he was elected the
Company's Secretary-Treasurer by the Board of Directors.  Mr. Isaac was granted
options to acquire 50,000 shares of the Company's Common Stock, exercisable at
the last bid price as of the date of grant, upon his acceptance of employment,
during the fiscal year ended June 30, 1995, but received no other compensation
as an employee during such year.   Mr. Isaac was granted options to acquire
200,000 shares exercisable at the last bid price as of the date of grant, on
November 21, 1995. The employment agreement with Mr. Isaac provides that he is
to receive a salary of $170,000 through June 30, 1996, $180,000 July 1, 1996
through June 30, 1997, and $190,000 for the remainder of the three year term of
the employment agreement.  Mr. Isaac's employment agreement allows three weeks
annual leave, but any leave not taken is to be forfeited without compensation.
The employment agreement with Mr. Isaac provides that he may receive use of a
Company vehicle for business purposes. In addition, Mr. Isaac is entitled to
reimbursement of reasonable expenses at the discretion of the Board of Directors
and such other benefits as the Board of Directors determines to make available
to its executive employees.

     The Company employs Dr. Kyle as Chief Operating Officer of its PDM
subsidiary, with responsibility for the dental clinics, under an informal
extension of an employment agreement with him which expired by its terms on June
30, 1992.  The employment agreement with Dr. Kyle provided for annual cash
compensation to Dr. Kyle of $100,000, together with a bonus of 10% of PDM's pre-
tax earnings in excess of $300,000 during each fiscal year covered by the
agreement.  During the year ended June 30, 1996, Dr. Kyle was paid $114,000 and
during the year ended June 30, 1995, Dr. Kyle was paid $114,672 under such
agreement, including both the salary and bonus.  In addition, Dr. Kyle was
granted options to acquire 50,000 shares of the Company's Common Stock,
exercisable at the last bid price as of the date of grant.

     On August 1, 1993, the Company entered into an employment agreement with
Mr. Charles L. Bull, President and Chief Operating Officer of Challenge
Products.  Pursuant to that agreement, Mr. Bull is to be paid $100,000 annually
through December 31, 1998, with month to month renewal thereafter unless
terminated on 60 days prior written notice.  Challenge Products is also required
to maintain a $300,000 split-dollar life insurance policy on Mr. Bull, payable
in accordance with his direction.  The employment agreement provides that Mr.
Bull cannot compete, directly or indirectly, with Challenge for three years
following termination of employment.

                                      -31-
<PAGE>
 
 Compensation to Directors
 -------------------------

     Beginning July 1, 1990, the Company established a fee of $1,000 per year
for each director. Through the year ended June 30, 1995, directors waived their
fees. During the year ended June 30, 1995, the three then serving directors were
granted options to acquire an aggregate 150,000 shares in recognition of
substantial efforts in obtaining the Micro and OMS acquisitions. In addition, a
new employee-director was granted options to acquire 50,000 shares for his
services in connection with such acquisitions and to induce him to accept
appointment to serve as the Company's Chief Financial Officer. In addition,
during the year ended June 30, 1995, the Company granted options to acquire
1,754 shares to Richard Reinhardt in accordance with the plan for such options
previously adopted by the Board with respect to non-employee directors. All such
options are exercisable at the last sale price on the date of grant.

     During the year ended June 30, 1996, the Board of Directors determined that
experienced outside directors expect to receive directors' fees and stock
options in connection with such service.  On September 21, 1995, the Board of
Directors adopted a proposal to pay directors' fees to non-employee directors in
the amount of $20,000 to each non-employee director annually for six regular
meetings and three meetings each of the Board's audit and Compensation
Committees. During the year ended June 30, 1996, $40,000 was paid as non-
employee director compensation. Employee directors receive only their usual
salaries and expenses in attendance at Board and Committee meetings for service
on the Board of Directors.  In addition, in August 1996, the Board adopted a
proposal to grant 20,000 shares exercisable at the market price on the later of
the date on which a non-employee director commences service or the date the
grant was authorized, for each new non-employee director.  During the year ended
June 30, 1996, Messrs. Reinhardt and Hovee were each granted options to acquire
1,200 shares of the Company's common stock, under the Directors' Stock Option
Plan, exercisable at $4.17 share, the last sale price for the Company's common
stock quoted for NASDAQ on June 30, 1996, the date of grant, pursuant to the
previously adopted plan for grant of options.

 Options Granted During the Last Fiscal Year.
 ------------------------------------------- 

     The following table provides information on options granted to the
Directors during the year ended June 30, 1996.

                OPTIONS GRANTED DURING YEAR ENDED JUNE 30, 1996
<TABLE>
<CAPTION>
                              Options   Exercise                Potential
                              Granted     Price    Expiration  Value /(1)/
Name                            (#)       $/SH)       Date         ($)
- ----------------------------  --------  ---------  ----------  -----------
<S>                           <C>       <C>        <C>         <C>
Kent E. Searl/(2)/            100,000      $2.13     11-21-05   $  416,000
Charles E. Strait /(3)/       295,560      $2.50      7-14-04    1,081,750
George J. Isaac /(2)/         200,000      $2.13     11-21-05      832,000
</TABLE>

                                      -32-
<PAGE>
 
<TABLE>
<S>                           <C>       <C>        <C>               <C>
Richard N. Reinhardt/ (4)/      1,200      $4.17      6-30-06        3,144

Robert A. Hovee /(4)(5)/        1,200      $4.17      6-30-06        3,144
</TABLE>
- -----------------
(1)  Potential value is based on the assumption that the price of the stock will
     appreciate at an annual compounded rate of 5% until the applicable
     expiration dates.
(2)  Mr. Searl and Mr. Isaac were granted the indicated options pursuant to the
     1994 Stock Option Plan.
(3)  Mr. Strait acquired the indicated options pursuant to the vote of the
     Company's shareholders at the Annual Meeting to convert previously granted
     options to acquire Micro shares to options under the 1994 Stock Option
     Plan.
(4)  Mr. Reinhardt and Mr. Hovee were granted the indicated options pursuant to
     the Directors' Stock Option Plan.
(5)  This table does not include the grant to Messrs. Hovee and Zaepfel of
     options to acquire 20,000 shares each in August of 1996, exercisable at
     $3.31 and $3.93, respectively.

     The following table provides information on exercise of stock options
during the year ended June 30, 1996 by executives and directors and value of
unexercised options at June 30, 1996:

          SHARES ACQUIRED ON EXERCISE OF OPTIONS AND VALUE OF OPTIONS
                       HELD BY EXECUTIVES AND DIRECTORS
                               at June 30, 1996
<TABLE>
<CAPTION>
                                             Number of Shares        Value of
                                                Underlying       Unexercised In
                                               Unexercised         the Money  
                                                Options at          Options at 
                                                FY-End (#)          FY-End(1)
                                             -----------------   --------------
                        Exercise    Value      Exercisable/        Exercisable/
Name                       (#)     Realized    Unexercisable      unexercisable
- ----------------------  ---------  --------  -----------------   --------------
<S>                     <C>        <C>       <C>                <C>
Kent E. Searl                  -          -         202,051/0        $378,569/0
Charles E. Strait              -          -         295,560/0         493,585/0
George J. Isaac                -          -         250,000/0         491,500/0
Richard N. Reinhardt           -          -         105,005/0         175,884/0
Robert A. Hovee                -          -           1,200/0               0/0
</TABLE>
- ----------------------
(1)  The indicated value has been determined based upon the difference between
     the exercise price and the fair market value of the securities underlying
     the options on June 30, 1996.
(2)  Potential value is based on the assumption that the price of the Company's
     common stock will appreciate at an annual compounded rate of 5% until the
     applicable expiration date of such options.

                                -----------------

                                      -33-
<PAGE>
 
1988 Stock Option Plan.
- ----------------------- 

     In 1988, the Company adopted its 1988 Stock Option Plan (the "Plan")
pursuant to which the Company's Board of Directors was authorized to issue
options to purchase up to 150,000 shares of the Company's Common Stock to
employees, directors and consultants of the Company. The option exercise price
must equal fair market value of the Common Stock on the date of grant. No
options to purchase shares of Common Stock were granted under the 1988 Plan
during the fiscal year ended June 30, 1996.  At June 30, 1996, options to
purchase an aggregate of 80,000 shares of the Company's Common Stock were
outstanding under this Plan, with options to purchase 30,000 shares exercisable
at $0.25 per share by a former director and options to purchase 25,000 shares
each, exercisable at $1.74 per share by two unrelated parties.  On July 5, 1996,
the Company registered the shares underlying the options theretofore granted
under the 1988 Stock Option Plan on a Form S-8 filed with the Securities and
Exchange Commission.  Although none of the options under the Plan had been
exercised prior to June 30, 1996,  all but 25,000 of such options have now been
exercised.  The Company's Board of Directors intends to eliminate the 1988 Stock
Option Plan during the year ending June 30, 1997.

1994 Stock Option Plan.
- ----------------------- 

     On May 25, 1994, the Company's shareholders adopted its 1994 Stock Option
Plan (the "Plan"), pursuant to which the Company's Option Committee was
authorized to issue options to purchase up to 500,000 shares of the Company's
Common Stock to employees of the Company. At the Annual Meeting of shareholders
on February 27, 1996, the shareholders approved an increase in the number of
shares authorized for grant of options under the Plan to 1.5 million shares.  In
addition, the shareholders also approved conversion of options to acquire shares
of Micro, granted to Micro employees prior to the acquisition to options to
acquire 591,120 shares of the Company's common stock at an exercise price of
$2.50 per share, under the 1994 Stock Option Plan.  The 1994 Stock Option Plan
was adopted to advance the interests of the Company and its shareholders by
affording employees an opportunity for investment in the Company.  The
Compensation Committee has sole discretion to select which employees of the
Company will be granted options, the number of shares subject to option, the
timing of such option grants, when the options may be exercised, and the
exercise price.  The exercise price of options must be at least equal to the
fair market value of the Common Stock on the date of grant.  The maximum term of
options granted under the Plan is ten years.  In addition to the conversion of
Micro Options approved by shareholders on February 27, 1996, the Board of
Directors granted options to purchase 300,000 shares to employees, with an
exercise price of $2.75 per share, during the current fiscal year ended June 30,
1996.  As of June 30, 1996, there were outstanding  options under the 1994 Stock
Option Plan to acquire 1,141,120 shares of the Company's common stock.

Directors' Stock Option Plan.
- ----------------------------- 

     On May 25, 1994, the Company's shareholders adopted its Directors' Stock
Option Plan (the "Plan") pursuant to which the Company was authorized to issue
options to purchase up to 200,000 shares of the Company's Common Stock to non-
employee Directors of the Company.

                                      -34-
<PAGE>
 
At the February 26, 1996 Annual Meeting, the Company's shareholders approved an
increase in the number of shares authorized for grant of options under the
Directors' Stock Option Plan to 500,000 shares. The Plan was adopted to advance
the interests of the Company and its shareholders by attracting qualified non-
employee Directors, whose participation and guidance contribute to the
successful operation of the Company.  The Board of Directors has previously
adopted a resolution which provides that options to purchase $5,000 share value
of Common Stock shall be granted to non-employee Directors, effective July 1 of
each year.  The exercise price of options must be at least equal to the fair
market value of the Common Stock on the date of grant. The maximum term of each
option is ten years.  During the year ended June 30, 1996, options to purchase
1,200 shares were granted to each of Messrs. Reinhardt and Hovee,  with an
exercise price of $4.17 per share.  Subsequent to June 30, 1996, the Board of
Directors granted options in the amount of 20,000 shares each to Messrs. Hovee
and Zaepfel, upon commencement of their service on the Board of Directors of the
Company as outside directors, with an exercise price of $3.31 and $3.93,
respectively, the last price reported on NASDAQ for the date prior to the later
of commencement of service on the Board of Directors or the grant of options by
the Board of Directors.  While the Board of Directors believes that the
Directors' Stock Option Plan currently permits the grant of options on
commencement of an experienced outside director's service on the Board of
Directors, it intends to seek shareholder approval at the next Annual Meeting
for an amendment to the Directors' Stock Option Plan to explicitly provide for
such grants.   As of June 30, 1996, there were outstanding options under the
Directors' Stock Option Plan to acquire 55,856 shares of the Company's common
stock.


Item 11.  Security Ownership of Certain Beneficial Owners and Management
          --------------------------------------------------------------

     Set forth in the following table is information as of June 30, 1996, with
respect to the beneficial shareholdings of the Company's common stock, by all
directors, individually, and all officers and directors as a group, and
beneficial owners of 5% or more of such common stock.

                                      -35-
<PAGE>
 
              BENEFICIAL SHAREHOLDINGS OF DIRECTORS, OFFICERS AND
                     OWNERS OF MORE THAN 5% OF COMMON STOCK
<TABLE>
<CAPTION>
                                                                 Percent
    Name and Address                      No. of shares         of Class(1)
- --------------------------         --------------------------  -----------
<S>                                <C>                         <C>
Kent E. Searl
1401 Walnut St., Suite 500
Boulder, CO 80302                          983,930/(2)(4)(5)/     10.87%

Ronald G. Coss
1401 Walnut St., Suite 500
Boulder, CO 80302                             2,493,528/(6)/      27.55%

Richard N. Reinhardt
1401 Walnut St., Suite 500
Boulder, CO 80302                       487,184/(2)(4)(5)(7)/      5.38%

Charles E. Strait
1401 Walnut St., Suite 500
Boulder, CO 80302                                295,560/(8)/      3.27%

George J. Isaac
1401 Walnut St., Suite 500
Boulder, CO 80302                                251,000/(4)/      2.77%

Mr. Robert A. Hovee
1401 Walnut St., Suite 500
Boulder, CO 80302                               1,200/(7)/         0.13%

All officers and directors as a
group (6 persons)                                4,187,173        46.42%
                                      /(2)(3)(4)(5)(6)(7)(8)(9)/

Micro Motors Employee
Stock Ownership Plan
151 E. Columbine                               1,099,805/(6)/     12.15%
Santa Ana, California
</TABLE> 
- --------------------------
(1)  Calculated pursuant to Rule 13d-3 under Exchange Act.
(2)  Includes 250,000 shares of Common Stock, 58,229 shares of Preferred Stock
     convertible share-for-share into Common Stock at any time, and Warrants to
     acquire 13,000 shares of Common Stock owned of record by Professional Sales
     Associates, Inc. ("PSA").  Messrs. Searl and Reinhardt are officers and
     directors of PSA and may be deemed to beneficially own PSA's shares.  Mr.
     Searl, individually, owns of record 400,750 shares of Common Stock and
     19,900 shares of Preferred Stock.  Mr. Reinhardt, individually, owns of
     record 56,950 shares.  In addition, Mr. Reinhardt's spouse, individually,
     owns 4,000 shares which are attributed to him in this chart.
(4)  Includes options held by Messrs. Searl, Reinhardt and Isaac to purchase
     50,000 shares (each) shares of the Company's Common Stock at $2.50 per
     share. Also includes options held by Messrs. Searl and Reinhardt to
     purchase 50,000 shares (each) at $1.75 per share.  Also includes options
     held by Messrs. Searl and Isaac to purchase 100,000 and 200,000,
     respectively, of the Company's Common

                                      -36-
<PAGE>
 
     Stock at $2.13 per share.  These shares have been added to outstanding
     shares in calculating each director's individual percentage of beneficial
     ownership.
(5)  Includes options held by Messrs. Searl and Reinhardt to purchase 2,051
     shares (each) of the Company's Common Stock at $2.43 per share and Mr.
     Reinhardt to purchase 1,754 shares of the Company's Common Stock at $2.85
     per share.  These shares have been added to outstanding shares in
     calculating each director's individual percentage of beneficial ownership.
(6)  Includes 604,893 shares of the Company's Common Stock held by the Micro
     Motors ESOP  which are held by such ESOP for the benefit of Mr. Coss.  Such
     shares held by the ESOP for the benefit of Mr. Coss are included in the
     total opposite Mr. Coss' name and also included in the total opposite the
     name of the Plan.  Mr. Coss is one of three Trustees of such Plan, and does
     not have sole voting or dispositive power over shares held by the Plan.
(7)  Includes options of Messrs. Reinhardt and Hovee to acquire 1,200 shares
     each of the Company's Common Stock at $4.17 per share.
(8)  Includes options of Mr. Strait to acquire 295,560 shares of the Company's
     Common Stock at $2.50 per share, pursuant to conversion of options to
     acquire Micro granted prior to the Micro acquisition, approved by the
     Company's shareholders on February 27, 1996.
(9)  The officers and directors as a group  currently have in the aggregate,
     together with their affiliates, voting power with respect to 2,601,335
     currently issued and outstanding shares of Common Stock, not including in
     such number the convertible preferred stock or options treated as shares of
     Common Stock attributed to them for the purpose of this chart.  Shares held
     by the Micro Motors ESOP have not been included in computing the voting
     power number in this footnote or in stating the vote controlled by officers
     and directors elsewhere in this proxy statement, but shares held by the
     Micro Motors ESOP for the benefit of Mr. Coss are included the amount of
     his beneficial ownership and the total held by all officers and directors
     as a group reported in the chart.

                                ----------------

     Set forth in the following table is information as of June 30, 1996 with
respect to the beneficial shareholdings of all directors, individually, and all
officers and directors as a group, and beneficial owners of more than five
percent of the Company's Series A Preferred Stock.


              BENEFICIAL SHAREHOLDINGS OF DIRECTORS, OFFICERS AND
                   OWNERS OF MORE THAN 5% OF PREFERRED STOCK

<TABLE>
<CAPTION>

                                                          Percent
Name and Address                        No. of shares    of Class
- --------------------------             ----------------  ---------
<S>                                    <C>               <C>

Kent E. Searl                              
1401 Walnut Street, Suite 500
Boulder, CO 80302                           78,129(1)       100.0%

Richard N. Reinhardt
1401 Walnut Street, Suite 500
Boulder, CO 80302                          58,229 (1)        74.5%

All officers and directors as a
group (3 persons)                          78,129 (1)       100.0%

</TABLE>

                                      -37-
<PAGE>
 
<TABLE> 
<S>                                           <C>            <C> 
Professional Sales Associates, Inc.
1401 Walnut Street, Suite 500
Boulder, CO 80302                             58,229         74.5%
- --------------------------
</TABLE> 

(1)  Includes 58,229 shares owned of record by Professional Sales Associates,
     Inc. ("PSA").  Messrs. Searl and Reinhardt are officers and directors of
     PSA and may be deemed to beneficially own PSA's shares.  Mr. Searl,
     individually, owns of record 19,900 shares (24.2% of the outstanding shares
     of Preferred Stock).  Mr. Reinhardt owns no shares of Preferred Stock
     individually.

Item 12.  Certain Relationships and Related Party Transactions
          ----------------------------------------------------

     In 1993, when the Company acquired Challenge, Mr. Charles Bull and
Challenge entered into a royalty agreement and license agreement, both effective
July 1, 1993 and extending to December 31, 1998.   Under the license agreement,
Mr. Bull granted Challenge Products an exclusive license to manufacture,
distribute and market a patented prophy ring in return for execution of the
acquisition agreements and a royalty agreement providing for certain payments in
respect of sales targets never achieved.  In June 1996, Mr. Bull, the Company
and Challenge entered into a letter agreement by which they agreed that the
royalty agreement was rescinded as void ab initio, for failure to accurately
reflect the intent of the parties.  In addition, the parties agreed that the
exclusive paid up license conferred by the license agreement should be evidenced
by an assignment of all rights in the prophy ring patent.  Mr. Bull continues to
serve as President of Challenge, and received $110,000 in compensation for his
services as President of Challenge, in the year ended June 30, 1996.

     On July 26, 1995, in connection with the merger of Micro Motors with and
into Micro, the Company issued 3,350,000 shares of the Company's Common Stock in
exchange for all the issued and outstanding stock of Micro Motors, all as more
fully described in the Company's Form 8-K dated July 26, 1995, which is
incorporated herein.  The Micro Motors Employee Stock Ownership Plan (the "Micro
ESOP") holds 1,099,805 of the shares issued in connection with the acquisition
of Micro, and has certain limited demand registration rights in respect thereof,
exercisable from July 26, 1996 through July 26, 1997, at the expense of the
Micro ESOP.  In addition, the Micro ESOP has limited concurrent registration
rights, sharing costs on a pro-rata basis, in the event the Company should
undertake an underwritten public offering prior to July 26, 2000.  In addition,
shareholders at the Company's Annual Meeting on February 27, 1996 approved
conversion of outstanding options of Micro Motors Incentive Stock Option Plan
into options to acquire 591,120 shares of the Company's Common Stock.

     Pursuant to the Merger Agreement, Ronald G. Coss entered into a Non-
Competition Agreement pursuant to which he is to be paid $1 million over five
years, with payment commencing in the sixth year after closing.  In addition,
Mr. Coss executed an employment agreement with the Company, pursuant to which he
is to be paid $360,000 annually as Vice Chairman of the Company under his
employment agreement, adjustable upward for inflation, representing a reduction
from the more than $560,000 which he had been paid as the Chairman of Micro,
despite his greater responsibilities with the Company.  In addition to
compensation

                                      -38-
<PAGE>
 
payable under the employment agreement between the Company and Mr. Coss, he is
entitled to certain executive employee benefits and perquisites.

     Prior to the merger transaction, Mr. Coss also entered into an agreement to
terminate his long term employment contract with Micro Motors, for an additional
$677,400, payable over five years, at 11% interest per annum.  At the closing
contemplated by the Merger Agreement, the Company assumed Micro Motor's
obligation under the termination agreement, as well as Micro's obligation under
a note for $261,050 in prior unpaid earned compensation.  In connection with the
closing of the transactions under the Merger Agreement, the Company also entered
into a flexible Line of Credit Loan Agreement, whereby Mr. Coss may borrow as
much as $500,000 from the Company, at 7% interest, with repayment of the loan to
occur as an offset of obligations owed by the Company to Mr. Coss in respect of
the Non-Competition Agreement and employment agreement.

     In connection with the acquisition of OMS, the Company borrowed $500,000
from an unrelated third party pursuant to a Loan Agreement and Promissory Note.
Fifty percent (50%) of the outstanding balance of obligations to the lender, at
any time, is jointly guaranteed by Professional Sales Associates, Inc. ("PSA")
and Mr. Kent E. Searl (the Company's Chairman). In connection with the loan, the
lender was granted a ten year warrant to acquire 26,000 shares of the Company's
Common Stock exercisable at the market price of the Company's shares at $2.50
per share exercise price.  Warrants to acquire 13,000 shares of the Company's
Common Stock were issued to PSA exercisable at $2.50 per share.  Messrs. Kent E.
Searl, Richard N. Reinhardt and George J. Isaac, directors of the Company, are
directors of PSA.  No warrants were issued to Mr. Searl.   The unrelated third
party loan which PSA guaranteed was repaid on July 26, 1996, when the Company
entered into a loan agreement with Harris Bank and Trust, N.A.

     The Company currently markets certain of the dental equipment manufactured
by Micro through PSA, a firm for which Messrs. Searl, Reinhardt and Isaac are
directors.  The arrangements with PSA continue a relationship between PSA and
Micro Motors established on an negotiated arms' length basis prior to the merger
of Micro Motors into Micro.  In electing to continue such relationship with PSA,
the disinterested members of the Board of Directors determined the relationship
is in the best interest of the Company.  While the Company believes that the
terms of the relationship between PSA and Micro are no less favorable to the
Company than comparable relations with third parties, more favorable terms may
have been obtainable on a negotiated basis with another third party sales
organization.

     The Company leases its offices in Boulder, Colorado from PSA, a firm for
which Messrs. Searl, Reinhardt and Isaac are directors, as sub-lessees under a
master lease between PSA and a third party unrelated to PSA or the Company.  The
sublease between the Company and PSA is on a month to month basis. The Company's
monthly lease payments are $1,883, which is equal to the amount of the lease
payments due from PSA to the third party lessor, on a per square foot basis.
The Company's management believes that the monthly rental is comparable to rents
charged for comparable properties in the market area.  Nevertheless, the terms
of the sub-lease,

                                      -39-
<PAGE>
 
including price, may not be as favorable to the Company as lease terms which
might have been negotiated with a third party in an arm's length transaction.

     Micro leases its offices and manufacturing facility in Santa Ana,
California from Ronald G. Coss, currently a director of the Company, at a
monthly rental of $27,383.  The Company's management believes that the monthly
rental is comparable to rents charged for comparable properties in the market
area.  Nevertheless, the terms of the lease, including price, may not be as
favorable to the Company as lease terms which might have been negotiated with a
third party in an arm's length transaction.

     On October 10, 1995, the Company granted warrants to acquire 100,000 shares
to Mr. Carl Militello, pursuant to a Warrant Agreement between Mr. Militello and
the Company.  Such warrants are exercisable at the last bid price as of the date
of grant of $2.13.   Such warrants were issued as consideration to Mr. Militello
for services to the Company, including investor relations and financial
consulting services.  Mr. Militello is not a related party.

     On May 11, 1996, the Company and its Pnu-Light subsidiary entered into an
Asset Purchase Agreement with Pnu-Light Tool Works, Inc., a Missouri corporation
("Pnu-Light Tools") and Mr. Marty J. Anderson, its principal shareholder,
acquired substantially all the assets of Pnu-Light Tool Works, Inc., a Missouri
corporation ("Pnu-Light Tools") including a letter patent relating to pneumatic
light mechanisms to be used in conjunction with hand-tools (the "Patent"). The
initial consideration for acquisition of Pnu-Light Tools assets, including the
Patent, was issuance of 368,483 restricted shares of the Company's common stock.
Pnu-Light Tools has certain limited concurrent registration rights in respect of
the shares issued it, which rights are exercisable from May 11, 1997 through May
11, 1999. In the event of exercise of registration rights, Pnu-Light Tools is
required to pay its pro rata share of the costs of such registration and any
offering. Additional consideration for acquisition of the Pnu-Light assets is
payable by issuance of additional stock, based upon an interim calculation as of
December 31, 1997, and a final calculation as of June 30, 1999. The total
purchase price is to equal five (5) times the net after tax earnings of Pnu-
Light for the year ending June 30, 1999, with a minimum total consideration of
$4 million giving credit against such minimum for (a) the greater of (i) the
fair market value, as of the date of issue, of the Company's stock previously
issued as consideration or (ii) the fair market value, as of June 30, 1999, of
the Company's stock previously issued as consideration, (b) patent related costs
incurred subsequent to closing, (c) excess payables, and (d) research and
development costs incurred within 120 days after closing. In addition, the
Company, at the Company's sole option, may unwind the transaction at any time
prior to payment of final consideration as of June 30, 1999, provided that the
value of total consideration payable at 5 times net after tax earnings shall not
then exceed $4 million. Prior to the Company's Pnu-Light acquisition, Micro
manufactured Pnu-Light's patented tools in its facility in California, under
contract with Pnu-Light Tools. In addition to assuming certain duties to provide
further information to complete the transfer of technical information in
connection with the assignment of the Patent relating to his inventions, Mr.
Anderson agreed to be employed by

                                      -40-
<PAGE>
 
Challenge under a three (3) year Employment Agreement between Mr. Anderson,
Challenge and Pnu-Light, at an annual salary of $60,000.  Mr. Anderson is also
obligated under a Non-Competition Agreement not to compete, directly or
indirectly, with the businesses of Pnu-Light or the Company, or any business
which continues such businesses, whether undertaken by Pnu-Light, the Company,
or any successor.

     On July 5, 1996, the Company filed a Form S-8 to register the shares of
common stock underlying options theretofore granted pursuant to its 1988
Employee Stock Option Plan.  Dr. Kyle, President of PDM and a former director of
the Company, held 30,000 of such options, exercisable at $0.25 per share.

                                    PART IV

Item 13.  Exhibits, Financial Statement Schedules and Reports on Form 8-K
          ---------------------------------------------------------------

     (a)  Exhibits
          --------

          (a) (1) and (a)(2)      See Item 7.

          (b)                     See Form 8-K filed by the Company dated July
                                  26, 1995 and Form 8-K filed by the Company
                                  dated May 11, 1996.

          (c)                     See Exhibit Index.  (Available Upon Request).


                                      -41-
<PAGE>
 
                                 EXHIBIT INDEX
 
                                                                    Sequentially
Exhibit                                                               Numbered
  No.                             Document                             Pages
- --------                    --------------------                    ------------

     3.1  Articles of Incorporation (incorporated herein by
          reference to Exhibit 3.1 to Pro-Dex, Inc. Registration
          Statement No. 33-74397).

     3.2  Bylaws (incorporated herein by reference to Exhibit 3.2
          to Pro-Dex, Inc. Registration Statement No. 33-74397).
 
     7.1  Pro-Dex, Inc. Form 8-K dated July 26, 1995
          (incorporated herein by reference to the Company's Form
          8-K dated July 26, 1995) and Financial Supplement to
          Form 8-K dated July 26, 1995 (incorporated herein by
          reference to the Company's Form 10-KSB, dated June 30,
          1995, and Supplement to Form 8-K, contained therein.)
 
     7.2  Merger Agreement between Pro-Dex, Inc., Micro Systems
          Acquisition Corporation, and Micro Motors, Inc., dated
          July 26, 1995 (incorporated herein by reference to
          Exhibit 7.1 to the Company's Form 8-K dated July 26, 1996).

     7.3  Acquisition Agreement between Pro-Dex, Inc., Oregon
          Micro Systems, Inc. and L. Wayne Hunter, dated July 26,
          1996 (incorporated herein by reference to Exhibit 7.2 to
          the Company's Form 8-K dated July 26, 1996).
 
     7.4  Pro-Dex, Inc. Form 8-K dated May 11, 1996 (incorporated
          herein by reference to the Company's Form 8-K dated May
          11, 1996).
 
    10.1  Form of Turnkey Management Agreement between Pro-Dex,
          Inc. and its Contracting Dentists (incorporated herein
          by reference to Exhibit 10.1 to Pro-Dex, Inc.
          Registration Statement No. 33-35790).

    10.2  Lease Agreement dated December 1, 1984 between Sears
          Roebuck and Co. and Pro-Dex, Inc. (Sun Valley) and
          amendment thereto dated as of November 9, 1987
          (incorporated herein by reference to Exhibits 10.8 and
          10.29 to Pro-Dex, Inc. Registration Statement No.
          33-35790).
 

                                      -42-
<PAGE>
 
  10.2(a) Agreement to Extend Lease Agreement (Exhibit 10.2 Sun
          Valley) dated May 5, 1994.

    10.3  Leaseback Agreement dated December 19, 1985 between
          Pro-Dex, Inc. and Fowler/Searl Partnership
          (incorporated herein by reference to Exhibit 10.13 to
          Pro-Dex, Inc. Registration Statement No. 33-6623).

    10.4  Lease Agreement dated November 24, 1986 between Sears
          Roebuck and Co. and Pro-Dex, Inc. (Santa Rosa) and
          amendment thereto dated as of January 7, 1988
          (incorporated herein by reference to Exhibits 10.16 and
          10.28 to Pro-Dex, Inc. Registration Statement No.
          33-35790).

  10.4(a) Agreement to Extend Lease Agreement (Exhibit 10.4 Santa
          Rosa) dated May 4, 1994.

    10.5  Pro-Dex, Inc. 1988 Stock Option Plan (incorporated
          herein by reference to Exhibit 10.23 to Pro-Dex, Inc.
          Form 10-K for the year ended June 30, 1988 File No.
          0-14942).

    10.6  Lease Agreement dated March 2, 1988 between Sears
          Roebuck and Co. and Pro-Dex, Inc. (Sunrise Mall), and
          extension/amendment dated May 2, 1991 (incorporated
          herein by reference to Exhibits 10.25 and 10.25(a) to
          Pro-Dex, Inc. Registration Statement No. 33-35790).

  10.6(a) Agreement to Extend Lease Agreement (Exhibit 10.6
          Sunrise Mall) dated July 6, 1994.

    10.7  Lease Agreement dated March 2, 1988 between Sears
          Roebuck and Co. and Pro-Dex, Inc. (Florin Mall) and
          extension/amendment dated May 2, 1991 (incorporated
          herein by reference to Exhibits 10.26 and 10.26(a) to
          Pro-Dex, Inc. Registration Statement No. 33-35790).

  10.7(a) Agreement to Extend Lease Agreement (Exhibit 10.6
          Florin Mall) dated July 6, 1994.

    10.8  Lease Agreement effective as of December 1, 1988
          between Sears Roebuck and Co. and Pro-Dex, Inc. (Arden
          Fair) and amendment thereto effective as of April 1,
          1989 (incorporated herein by reference to Exhibits
          10.32 and 10.33 to Pro-Dex, Inc. Registration Statement
          No. 33-35790).

                                      -43-
<PAGE>
 
    10.9  Employment Agreement between Pro-Dex, Inc. and M. Larry
          Kyle, D.D.S. dated June 28, 1990 (incorporated herein
          by reference to Exhibit 10.34 to Pro-Dex, Inc.
          Registration Statement No. 33-35790).

   10.13  Lease Agreement between Equity Colorado Phase II and
          Biotrol International, Inc. dated August 1991
          (incorporated herein by reference to Exhibit 10.40 to
          Pro-Dex, Inc. Registration Statement No. 33-35790).

 10.13(a) First Amendment to Lease (Exhibit 10.13) dated January
          31, 1994.

   10.14  Loan Agreement between Biotrol International, Inc. and
          A-T Realty Co. dated May 29, 1991 (incorporated herein
          by reference to Exhibit 10.43 to Pro-Dex, Inc.
          Registration Statement No. 33-35790).

   10.15  Employment Agreement dated effective August 1, 1993
          between Challenge Products, Inc. and Charles L. Bull
          (incorporated herein by reference to Exhibit 10.15 to
          Pro-Dex, Inc. Registration Statement No. 33-74397).

   10.16  Prophy Ring Patent License Agreement dated effective
          July 1, 1993 between Challenge Products, Inc. and
          Charles L. Bull (incorporated herein by reference to
          Exhibit 10.17 to Pro-Dex, Inc. Registration Statement
          No. 33-74397).

   10.17  1994 Stock Option Plan (incorporated herein by
          reference to Exhibit 10.21 to Pro-Dex, Inc.
          Registration Statement No. 33-74397).

   10.18  Director's Stock Option Plan (incorporated herein by
          reference to Exhibit 10.22 to Pro-Dex, Inc.
          Registration Statement No. 33-74397).

   10.19  Lease Agreement dated December 29, 1993 between Fuoti
          Insurance Agency, Inc. & James C. & Susan E. Fuoti and
          Pro-Dex, Inc. & M. Larry Kyle, DDS. (Incorporated
          herein by reference to the Exhibit 10.23 to the
          Company's Form 10-KSB dated June 30, 1994).

   10.20  Consulting Agreement and Non-Competition Agreement,
          between Pro-Dex, Inc. and L. Wayne Hunter, dated July 26, 1995
          (incorporated herein by reference to Exhibit 10.1 to the Company's 
          Form 8-K dated July 26, 1996).

                                      -44-
<PAGE>
 
   10.21  Employment Agreement between Ronald G. Coss and
          Pro-Dex, Inc., dated July 26, 1995 (incorporated herein
          by reference to Exhibit 10.2 to the Company's Form 8-K dated 
          July 26, 1996).

   10.22  Agreement to Terminate Long Term Employment Agreement
          between Micro Motors, Inc. and Ronald G. Coss, dated
          July 26, 1995 (incorporated herein by reference to Exhibit 
          10.3 to the Company's Form 8-K dated July 26, 1996).

   10.23  Asset Purchase Agreement between Pro-Dex, Inc.,
          Pnu-Light Acquisition Corporation, and Marty J.
          Anderson, dated May 11, 1996.

   10.24  Letter Agreement, regarding rescission of Royalty
          Agreement between Pro-Dex, Inc., Challenge Products,
          Inc. and Charles Bull, dated June   , 1996, together
          with Assignment of Patent.

                                      -45-

<PAGE>
 
Exhibit 10.23



                           ASSET PURCHASE AGREEMENT

                                     Among

                         PRO-DEX, INC. ("Purchaser"),

         PNU-LIGHT ACQUISITION CORPORATION ("Purchaser's Subsidiary"),

                    PNU-LIGHT TOOL WORKS, INC. ("Seller") &

                       MARTY J. ANDERSON ("Shareholder")



                                 May 11, 1996

<PAGE>
 
                               TABLE OF CONTENTS
<TABLE>
<CAPTION>

                                                                           PAGE
<S>    <C>                                                                 <C>
I.     PURCHASE AND SALE OF BUSINESS AND ASSETS.............................. 1

       1.01.  Assets to be Transferred....................................... 1
       1.02.  Liabilities to be Assumed...................................... 2

II.    CONSIDERATION......................................................... 2

       2.01.  Consideration.................................................. 2
              a.   Initial Consideration..................................... 2
              b.   Additional Consideration.................................. 2
              c.   Purchaser's Subsidiary.................................... 3
       2.02.  Determination of Net After Tax Earnings........................ 3
       2.03.  Access to Books and Records.................................... 6
       2.04.  Statement of Valuation for First Payout Period................. 6
       2.05.  Statement of Valuation on Completion of Full Payout Period..... 6
       2.06.  Delivery of Additional Consideration........................... 8
       2.07.  Resolution of Any Possible Dispute Regarding Valuation......... 8
       2.08.  Exemption from Registration.................................... 8
       2.09.  Concurrent Registration Rights................................. 8
       2.10.  Effect of Any Excess Issuance of Stock......................... 9
       2.11   Unwinding Procedure............................................ 9
       2.12.  Waiver of Unwinding Procedure..................................10

III.   CLOSING...............................................................10

       3.01.  Closing........................................................10
       3.02.  Seller and Shareholder's Obligations at Closing................11
       3.03.  Purchaser's Obligations at Closing.............................12

IV.    REPRESENTATIONS AND WARRANTIES OF SELLER AND SHAREHOLDER..............13

       4.01.  Organization, Standing and Qualification.......................13
       4.02.  Subsidiaries...................................................13
       4.03.  Transactions with Certain Persons..............................14
       4.04.  Execution, Delivery and Performance............................14
       4.05.  Capitalization.................................................14
       4.06.  Financial Statements...........................................15
       4.07.  Absence of Undisclosed Liabilities.............................15
       4.08.  Taxes..........................................................15
       4.09.  Absence of Change..............................................16
       4.10.  Litigation and Compliance with Law and Other Instruments.......16
</TABLE>

                                       i
<PAGE>
 
<TABLE>
<S>    <C>                                                                  <C> 
       4.11.  Title to Properties............................................17
       4.12.  Further Schedules..............................................17
       4.13.  Intellectual Property..........................................18
       4.14.  Guaranties.....................................................20
       4.15.  Inventory......................................................20
       4.16.  Receivables....................................................20
       4.17.  Employee Benefit Plan Matters..................................20
       4.18.  Environmental Compliance.......................................20
       4.19.  Product Warranty...............................................21
       4.20.  Investment Intention...........................................21
       4.21.  Accuracy of Disclosure.........................................22

V.     REPRESENTATIONS AND WARRANTIES OF PURCHASER...........................23

       5.01.  Organization, Standing and Qualification.......................23
       5.02.  Subsidiaries...................................................23
       5.03.  Execution, Delivery and Performance............................23
       5.04.  Capitalization.................................................23
       5.05.  Authorization of Stock Issuance................................24
       5.06.  Financial Statements...........................................24
       5.07.  Absence of Change..............................................25
       5.08.  Litigation.....................................................25
       5.09.  Accuracy of Disclosure.........................................25

VI.    CONDUCT OF BUSINESS PRIOR TO CLOSING..................................26

       6.01.  Conduct of Business Prior to Closing...........................26
       6.02.  Brokerage......................................................26
       6.03.  Access to Information and Documents............................26

VII.   BULK SALES COMPLIANCE.................................................27

       7.01.  Waiver of Compliance...........................................27
       7.02.  Indemnity by Seller and Shareholder for Non-Compliance.........27

VIII.  CONDITIONS PRECEDENT TO PURCHASER'S OBLIGATION TO CLOSE...............27

       8.01.  Accuracy of Representations and Warranties.....................27
       8.02.  Performance of Covenants and Agreements........................27
       8.03.  No Material Adverse Change.....................................27
       8.04.  Certificate of President.......................................28
       8.05.  Acceptance of Schedules........................................28
       8.06.  Acceptance of Cash Consideration Amount........................28
       8.07.  All Required Deliveries........................................28
</TABLE>


                                      ii
<PAGE>

<TABLE>
<S>    <C>                                                                  <C> 
IX.    CONDITIONS PRECEDENT TO SELLER AND SHAREHOLDER'S OBLIGATION
       TO CLOSE..............................................................28

       9.01.  Accuracy of Representations and Warranties.....................28
       9.02.  Performance of Covenants and Agreements........................28
       9.03.  Certificate of Vice President..................................28
       9.04.  All Required Deliveries........................................29

X.     SURVIVAL OF REPRESENTATIONS; INDEMNIFICATION..........................29

       10.01.  Survival of Representations...................................29
       10.02.  Indemnification by Seller and Shareholder.....................29
       10.03.  Indemnification by Purchaser..................................29
       10.04.  Rules Regarding Indemnification...............................30
       10.05.  Survival of Indemnification...................................30
       10.06.  Liability of Shareholder......................................31
       10.07.  Remedies Cumulative...........................................31

XI.    TERMINATION...........................................................31

       11.01.  Mutual Agreement..............................................31
       11.02.  Upon Default of Seller or Shareholder.........................31
       11.03.  Upon Default of Purchaser.....................................31
       11.04.  Termination...................................................31
       11.05.  Effect of Termination.........................................32

XII.   MISCELLANEOUS.........................................................32

       12.01.  Amendment and Waiver..........................................32
       12.02.  Expenses......................................................32
       12.03.  Assignment....................................................32
       12.04.  Parties in Interest...........................................32
       12.05.  Entire Agreement..............................................32
       12.06.  Headings......................................................33
       12.07.  Survival......................................................33
       12.08.  Notices.......................................................33
       12.09.  Law Governing.................................................34
       12.10.  Counterpart Execution.........................................34

EXECUTIONS...................................................................33
</TABLE>


                                      iii
<PAGE>
 
                           ASSET PURCHASE AGREEMENT

                                     AMONG

                          PRO-DEX, INC. ("PURCHASER")

         PNU-LIGHT ACQUISITION CORPORATION ("PURCHASER'S SUBSIDIARY")

                    PNU-LIGHT TOOL WORKS, INC. ("SELLER") &

                       MARTY J. ANDERSON ("SHAREHOLDER")

     THIS AGREEMENT, dated May 11, 1996, is by and among Pro-Dex, Inc., a
Colorado corporation ("Purchaser"), Pnu-Light Acquisition Corporation, a
Colorado corporation ("Purchaser's Subsidiary"), Pnu-Light Tool Works, Inc., a
Missouri corporation ("Seller") and Marty J. Anderson, the holder of 2,794.45
shares comprising twenty-eight and 65/100ths  percent (28.65%) and holder of
irrevocable proxies, each coupled with an interest, over at least twenty-seven
and 35/100ths percent (27.35%) of the currently outstanding common stock of
Seller ("Shareholder").  All schedules, exhibits and agreements attached hereto
are made a part hereof and are incorporated in this agreement (the "Agreement").

     WHEREAS  Purchaser desires to acquire Seller's business and assets,
including Seller's patented pneumatic light technology and related trade rights,
trade secrets, patents (the "Patents"), copyrights, trade names, technology,
secret processes and know how (the "Intellectual Property"); and

     WHEREAS  Seller and Seller's shareholders, including Shareholder, have
determined that it is in the best interest of Seller and Seller's shareholders
for Seller to sell all its assets,  including its patented pneumatic light
technology, Patents and Intellectual Property, to Purchaser in consideration of
Purchaser's issuance of shares of its common stock in exchange for such assets;

     NOW THEREFORE, in consideration of the mutual covenants and agreements set
forth herein, the parties hereby agree as follows:

I.   PURCHASE AND SALE OF BUSINESS AND ASSETS.
 
     1.01.   Assets to be Transferred.   Subject to and upon the conditions set
             ------------------------                                          
forth in this Agreement, Seller will sell, transfer, convey, assign and deliver
to Purchaser, and Purchaser will purchase, at the Closing hereunder, all of the
business, assets, properties, goodwill and rights of Seller as a going concern,
of every nature, kind and description, tangible and intangible, wheresoever
located and whether or not carried or reflected on the books of Seller
(hereinafter sometimes collectively referred to as "Seller's Assets," including
without limitation, (a) the right to use Seller's name, (b) Seller's Assets
referred to in the Bill of Sale attached hereto as Exhibit "A," (c) the assets

                                       1
<PAGE>
 
referred to as the "Patents" and "Intellectual Property" subject to the
Irrevocable License and Assignment of Patents attached hereto as Exhibit "B" and
(d) Seller's Assets and property reflected on the Balance Sheet referred to in
Section 4.06, with only such dispositions of such property on the Balance Sheet
as shall have occurred in the ordinary course of business from the date thereof
through the Closing and which are permitted pursuant to the terms hereof,
excluding only the Minute Books, Corporate Seal and Stock Ownership Records of
Seller, and $10,000 which shall be set aside to pay Seller's income taxes on
Seller's profits from its operations from January 1, 1996 through the Closing
Date (the "Tax Escrow").

     1.02.  Liabilities to be Assumed.   Seller's Assets shall be conveyed free
            -------------------------                                          
and clear of all liabilities and obligations not expressly assumed by the
Purchaser hereunder and those liens and encumbrances securing the same which are
specifically disclosed herein or expressly permitted by the terms of this
Agreement.  Liabilities expressly assumed by Purchaser are set forth in Schedule
1.02.

II.  CONSIDERATION.

     2.01.  Consideration.   In consideration for the sale, transfer,
            -------------
conveyance, assignment and delivery of Seller's Assets by Seller to Purchaser,
and in reliance upon the representations and warranties in this Agreement,
Purchaser will, in full payment thereof, pay to Seller a total purchase price
equal to five (5) times the annual Net After Tax Earnings of Purchaser's
Subsidiary (as such term, "Net After Tax Earnings" is hereafter defined) into
which Purchaser shall place Seller's Assets, calculated as of June 30, 1999,
based on the one year period July 1, 1998 through June 30, 1999 (the "Final
Payout Period").

            a.  Initial Consideration.   Upon Closing, as hereinafter described,
                ---------------------                                           
Purchaser shall issue to Seller 368,483 shares of restricted fully paid and
nonassessable common stock of Purchaser (such shares, the "Initial
Consideration"), subject to restrictions on transfer as more fully set forth in
the Shareholder's Agreement attached hereto as Exhibit "C; provided however,
                                                           ---------------- 
that if Seller shall request in writing a greater amount of the consideration be
payable in cash, such greater amount shall be paid up to $100,000 by way of a
Note of Purchaser, bearing ten percent (10%) interest per annum, payable in full
on June 30, 1996, and in such event the number of shares of Purchaser's common
stock to be issued at Closing hereunder shall be reduced by 25 shares for each
$100 of additional cash paid as part of the Initial Considerations payable at
Closing."
 
            b.  Additional Consideration.   On or before April 30, 1998,
                ------------------------
Purchaser shall pay Additional Consideration to Seller, to the extent, if any,
that an interim computation of the total purchase price as of December 31, 1997
shall exceed the Initial Consideration Value (herein defined), as provided in
Section 2.04. On or before October 31, 1999, Purchaser shall pay Additional
Consideration to Seller, to the extent, if any, that the total purchase price
shall exceed the sum of the Initial Consideration Value and the Interim
Consideration Value (herein defined), as provided in Section 2.05.
 

                                       2

<PAGE>
 
                (i)    Valuation of Initial Consideration for Computing 
                       ------------------------------------------------
Additional Consideration.   For purposes of computation of Additional 
- ------------------------
Consideration pursuant to Sections 2.04 and 2.05 only, the value attributed to
the Initial Consideration ("Initial Consideration Value") shall be the greater
of (x) the market value as reflected by the last sale price for Purchaser's
Common Stock as reported by the National Association of Securities Dealers
Automated Quotation ("NASDAQ") service for the last date on which Purchaser's
common stock shall been traded prior to Closing; (y) $4.00 per share; or (z) the
market value as reflected by the last sale price for Purchaser's Common Stock as
reported by the NASDAQ (or if not so quoted, on any automated inter-dealer
quotation service or national or regional exchange, at Purchaser's election) on
the last date on which Purchaser's common stock shall have been traded in a)
December 1997 for the first Additional Consideration due April 30, 1998, and b)
June 1999 for the final Additional Consideration due October 31, 1999.

                (ii)   Valuation of Interim Additional Consideration for 
                       -------------------------------------------------
Computing Final Additional Consideration. For purposes of computation of
- ----------------------------------------
Additional Consideration as of June 30, 1999, pursuant to
Section 2.05 only, the value attributed to previously delivered interim
Additional Consideration ("Interim Consideration Value") shall be the greater of
(x) the market value as reflected by the last sale price for Purchaser's Common
Stock as reported by the National Association of Securities Dealers Automated
Quotation ("NASDAQ") service for the last date on which a trade shall have
occurred in December 1997 or (y) the market value as reflected by the last sale
price for Purchaser's Common Stock as reported by the NASDAQ (or if not so
quoted, on any automated inter-dealer quotation service or national or regional
exchange, at Purchaser's election) in June 1999.

               (iii)   Valuation Purposes.  Valuation of previously delivered 
                       ------------------
Initial Consideration and interim Additional Consideration as set forth in
Sections 2.01(b)(i) and (ii) herein shall be applied only to determine the
amount, if any, of subsequent Additional Consideration payable hereunder.

           c.  Purchaser's Subsidiary.   As used in this Article II, the term
                ----------------------                                        
"Purchaser's Subsidiary" shall include Purchaser's Subsidiary and its
subsidiaries (if any), as well as any business or businesses conducted by
Purchaser or any affiliate of Purchaser which represent a succession to or
continuation of the business of Seller.

     2.02. Determination of Net After Tax Earnings.   As used in this Article 
           ---------------------------------------                            
II, the term "Net After Tax Earnings" shall mean the consolidated net earnings
(or losses) of Purchaser's Subsidiary, computed on an accrual basis of
accounting in accordance with generally accepted accounting principles,
consistently applied, except that the following provisions shall govern the
computation of the Net After Tax Earnings of Purchaser's Subsidiary for purposes
of this Article II:

           a.  Any non-recurring items of income, gain, loss or expense which
shall be unrelated to any breach of representations and warranties of Seller
shall be excluded;


                                       3

<PAGE>
 
     b.  Any loss, charge or expense (i) not related to ordinary business
operations, or (ii) paid, incurred or charged for expansion of business
operations or acquisitions of additional operations to which Seller objected
within 30 days of notice from Purchaser and any income or revenues derived
therefrom, shall be excluded;

     c.  Any charge or expense for the amortization of goodwill arising from the
payment of any purchase price hereunder in excess of the net worth of Seller's
Assets shall be excluded;

     d.  Any charge for general or administrative parent office expenses of
Purchaser shall not be taken in excess of the average rate at which Purchaser
assesses such charges against its other subsidiaries or divisions, not to exceed
5% of the net revenues of Purchaser's Subsidiary on an annualized basis;

     e.  The deduction for payments to Shareholder pursuant to the Employment
and/or Non-Competition Agreements set forth as Exhibits "D" and "E" hereto shall
not exceed $70,000 on an annualized basis;
 
     f.  Interest expenses or other charges for borrowed money shall be excluded
to the extent that such expenses or charges exceed the charges applicable to the
amount of funds borrowed by Purchaser to acquire Seller's Assets, as set forth
in Schedule 2.01, and any charges applicable to funds borrowed in respect of any
acquisition or expansion not excluded pursuant to Section 2.02(b) whether or not
Purchaser has elected to replace such borrowings in Purchaser's Subsidiary by an
intra-corporate loan, in which event of intra-corporate loan, such interest
expense shall be computed at 1.2 times the prime interest rate chargeable for
short term borrowings by Norwest Bank);
 
     g.  Any purchases of goods or services made by  Purchaser's Subsidiary from
Purchaser's other subsidiaries shall be priced at the best price at which such
subsidiary shall sell to third parties, less sales commissions or other
marketing costs identifiable to a particular contract, plus applicable delivery
charges and usual interest charges for payments not timely made;
 
     h.  Any sales of goods or services made by Purchaser's Subsidiary to
Purchaser's other subsidiaries shall be priced at the best price at which
Purchaser's Subsidiary shall sell to third parties, less sales commissions or
other marketing costs specifically identifiable to a particular contract, plus
applicable delivery charges and usual interest charges for payments not timely
made;
 
     i.  All accounting elections, including without limitation those relating
to methods of depreciation, useful lives of depreciable property, capitalization
of charges and setting up of reserves shall be made in such manner as to be
consistent with practices regarding such elections in Purchaser's other
businesses (except to the extent that certain Patent Related Costs are treated
differently pursuant to 2.02(j);


                                       4
<PAGE>
 
            j.  All costs and expenses paid by Purchaser or Purchaser's 
Subsidiary or ny other subsidiary of Purchaser, relating to enforcement,
defense, protection, or prosecution of the Patent and any further improvements
thereon, including without limitation (a) attorneys' fees, (b) engineering and
         ----------------------------
other expert evaluation and opinions, (c) legal and engineering research and
analysis, (d) costs of patent applications and amendments thereto, (d) costs of
performance of the Patent owner's duties as licensor under any license
agreement, (e) costs and expenses of defending infringement actions including
any appeals thereof, whether relating to manufacturing for sale or selling in
accordance with Seller's procedures on the Closing date or other manufacture or
sale which shall rely on any claim under the Patent, and the full amount of any
judgment or award in any infringement action against Purchaser, Purchaser's
Subsidiary or any other subsidiary of Purchaser in any such action, and (f)
costs of notice of infringement, bringing an action against an infringing party
(whether or not successful) or collecting upon any judgment relating to
infringement on the Patent by any third party (all of which, the Patent Related
Costs). Notwithstanding anything herein, none of Purchaser, Purchaser's
        ------------------------------- 
Subsidiary or any other subsidiary of Purchaser shall be required to take any
action, expend any funds or do anything for which costs and expenses are listed
herein among Patent Related Costs;

            k.  All costs and expenses associated with any claim, liability,
threat of action, action, and securities law liability under state and federal
securities laws, including without limitation attorneys' fees, accountants'
fees, filing fees, bonds and other costs of defense and the entire amount of any
judgments, fines or penalties, relating to any sale of shares of Seller's common
stock or other securities, which are required to be fully paid by Seller under
the indemnification provisions of this Agreement, shall be included in expenses
of Purchaser's Subsidiary unless fully paid by Seller (all such costs and
expenses, the "Pnu-Light Securities Law Liability Amounts);"

            l.  The tax applicable to the net earnings of Purchaser's
Subsidiaries shall be computed, without considering any offsetting of gains and
losses (or use of any net operating loss carry-forward) among divisions and
subsidiaries resulting from consolidation of Purchaser's income tax return; and

            m.  Expenses paid or incurred by Purchaser's Subsidiary in respect
of the sale of assets transaction contemplated by this Agreement not
specifically identified above shall be excluded.

     2.03.  Access to Books and Records.   During the Payout Period, Seller
            ---------------------------
shall have reasonable access to the books and records of Purchaser's Subsidiary
during normal business hours in a manner not disruptive to Purchaser's
Subsidiary's business operations.

     2.04.  Statement of Valuation for First Payout Period.   As soon as
            ----------------------------------------------
practicable after December 31, 1997, but in any event not later than April 30,
1998, Purchaser shall deliver to Seller a statement setting forth in reasonable
detail Purchaser's computation of the six months net after tax earnings of
Purchaser's Subsidiary during the First Payout Period from July 1, 1997 until
December 31, 1997 and the amount of any Additional Consideration payable as of
December 31, 1997.  The amount of Additional Consideration payable as of
December 31, 1997 shall be five (5) times the six 


                                       5
<PAGE>
 
months net after tax earnings of Purchaser's Subsidiary, less the applicable
Initial Consideration Value, and shall be payable by Purchaser's issuance to
Seller of restricted fully paid and non-assessable shares of Purchaser's common
stock subject to the Shareholders' Agreement, valued at the last sale price
reported by NASDAQ (or if not so quoted, on any automated inter-dealer quotation
service or national or regional exchange, at Purchaser's election) for the last
date on which such common stock shall have been traded in December 1997.

     2.05.  Statement of Valuation on Completion of Full Payout Period.   As
            ----------------------------------------------------------
soon as practicable after June 30, 1999, but in any event not later than October
31, 1999, Purchaser shall deliver to Seller a statement setting forth in
reasonable detail Purchaser's computation of the annual net after tax earnings
of Purchaser's Subsidiary during the Final Payout Period from July 1, 1998
through June 30, 1999, and the amount of any Additional Consideration payable as
of June 30, 1999. The amount of Additional Consideration payable as of June 30,
1999 shall be the greater of:
                  ---------- 
 
            a.    Five (5) times the annual net after tax earnings of
Purchaser's Subsidiary for the one year period ending June 30, 1999, less the
sum of the applicable Initial Consideration Value and the applicable Interim
Consideration Value for consideration previously delivered in respect of this
Article II. Additional Consideration payable as of June 30, 1999 shall be
payable by Purchaser's issuance to Seller of restricted fully paid and non-
assessable shares of Purchaser's common stock subject to the Shareholder's
Agreement, valued at the last sale price of Purchaser's common stock reported by
NASDAQ (or if not so quoted, on any automated inter-dealer quotation service or
national or regional exchange, at Purchaser's election) for the last date on
which Purchaser's common stock shall have been traded in June 1999, or

            b.    $4 million (as hereinafter adjusted) payable by issuance to
Seller of restricted fully paid and non-assessable shares of Purchaser's common
stock subject to the Shareholder's Agreement, valued as set forth in Section
2.05(a) (as hereinafter adjusted for prior items, the "Minimum Total
Consideration"). To determine the amount of Additional Consideration which shall
be required to achieve Minimum Total Consideration, the following items shall be
subtracted from $4 million:
 
                  (i)     Initial Consideration Value;
 
                  (ii)    Interim Consideration Value;
 
                  (iii)   The sum of all amounts paid by Purchaser or
Purchaser's Subsidiary relating to contracts, claims or liabilities of Seller or
Seller's business which arose, were incurred, accrued or related to Seller's
assets, products or business prior to Closing (excepting only agreements entered
into by Seller with Purchaser's express written consent as to each specific
agreement, in the period between execution of this Agreement and the Closing
Date), which in the aggregate of all such amounts exceed $500,000 (such excess,
the "Excess Payables");


                                       6
<PAGE>
 
                (iv)   All costs of assets and services acquired by, used, or
contracted for by Purchaser's Subsidiary or Purchaser, to the benefit of
Purchaser's Subsidiary in research, development and other operations of
Purchaser's Subsidiary, which are acquired, used, or entered into during the
period commencing on the execution hereof and continuing for 120 days after the
Closing Date (excepting only (a) $450,000 payable in respect of the Employment
Agreement and employment agreements in the period from Closing to June 1999 and
(b) reasonable lease payments for the Ozark/Springfield area facility, not to
exceed $24,000 annually for a total of $72,000 during such period) (all such
costs, the "Initial R&D Costs");

                (v)    All Patent Related Costs, as defined above, whether or
not the same shall have been fully amortized at the date of computation of
Minimum Total Consideration; and

                (vi)   All Pnu-Light Securities Law Liability Amounts, as
discussed above, whether or not fully amortized or paid at the date of
Computation of Minimum Total Consideration.
 
For example, assuming that:  Initial Consideration Value is    $2,000,000
                             Interim Consideration Value is     1,000,000
                             Excess Payables are                  150,000
                             Initial R&D Costs are                350,000
                             Patent Related Costs are             100,000

then the remaining Additional Consideration to achieve Minimum Total
Consideration will be $400,000, payable as of June 30, 1999 on or before October
31, 1999. This example is for demonstration purposes only, and should not be
considered to project (a) any market value for Purchaser's common stock at any
time, (b) the amount of excess payables expected, or (c) a commitment for any
specific amount of expenditures for Initial R&D Costs.

            c.  No Payment of Additional Consideration in Event of Unwinding.  
                ------------------------------------------------------------
In the event that Purchaser shall elect to exercise its unwinding options as set
forth in Section 2.11, Purchaser shall not be required to pay any Additional
Consideration or achieve the Minimum Total Consideration as herein provided.

     2.06.  Delivery of Additional Consideration.   The statements of valuation
            ------------------------------------
by Purchaser as of each of December 31, 1997 and June 30, 1999 shall be
accompanied by delivery to Seller of any Additional Consideration which
Purchaser has computed as due to Seller as of each such date. If, within thirty
(30) days of any delivery of a statement of valuation by Purchaser, Seller has
not given written notice to Purchaser stating the basis of any dispute relating
to such statement, Purchaser shall have no further liability to Seller in
respect of such statement or the Additional Consideration due in respect
thereto.

     2.07.  Resolution of Any Possible Dispute Regarding Valuation.  In the
            ------------------------------------------------------
event Seller shall timely give notice to Purchaser of any dispute pursuant to
Section 2.06, Purchaser and Seller shall attempt to resolve the dispute within
sixty (60) days. Any dispute unresolved after sixty (60) days


                                       7
<PAGE>
 
shall be referred to any national accounting firm selected by mutual agreement
of Purchaser and Seller, or failing such agreement shall be referred to
McGladrey & Pullen LLP, for resolution. Any determination by such accountants
shall be final, valid and enforceable by the parties. Purchaser shall make any
further issuance of stock required to conform with the determination of such
accountants within ten (10) days of Purchaser's receipt of such accountants'
written notice of determination.

     2.08.  Exemption from Registration.    The parties hereto intend that the
            ---------------------------                                       
issuance of shares of Purchaser's common stock by Purchaser to Seller in
exchange for Seller's Assets shall be exempt from the registration requirements
of the Securities Act of 1933, as amended (the "Act"), pursuant to Section 4(2)
and/or Section 4(6) of the Act. In furtherance of such exemptions, Seller has
provided or shall before the Closing Date provide to Purchaser a Shareholder's
Agreement,  which shall be applicable to all shares issued in respect of Initial
Consideration or Additional Consideration when and as issued.

     2.09.  Concurrent Registration Rights.   If Purchaser files a registration
            ------------------------------                                     
statement under the Act which relates to a current offering of the securities of
Purchaser (other than a registration statement on Form S-4 or S-8 or any other
form which does not permit secondary sales) or any securities of the Company
held by any shareholder, such registration statement and the prospectus included
therein shall also, at the written request of the Seller, include and relate to
any shares issued to Seller by Purchaser under this agreement which were issued
not less than 12 nor more than 36 months prior to the date of the filing of such
registration statement, so as to permit the public sale thereof, provided
                                                                 --------
however, that no registration or sale of securities pursuant to this concurrent
- -------                                                                        
registration right shall occur (a) prior to the latest of (i) 35 days subsequent
to Purchaser's delivery of Additional Consideration payable as of June 30, 1999
or (ii) October 31, 1999, or (b) at any time when there shall be a dispute
relating to consideration hereunder.  Purchaser shall give written notice to
Seller of its intention to file a registration statement under the Act relating
to a current offering of Purchaser's securities at least 30 days prior to the
filing of such registration statement, and Seller shall deliver notice to
Purchaser of its request for inclusion of shares held by Seller at least 10 days
prior to the date specified as the anticipated filing date in Purchaser's
notice.  Neither delivery of notice by Purchaser nor delivery of request by
Seller shall obligate Purchaser to file the registration statement and Purchaser
may, at any time prior to the effective date thereof, determine not to offer the
securities to which such registration statement relates.  The registration
rights granted in this Section 2.09 shall not apply to an offering of
Purchaser's securities on a firmly underwritten basis, if the underwriter
notifies Purchaser that inclusion of such shares owned by Seller would adversely
affect the marketing of the offering.  All costs in connection with any
registration or underwriting involving the shares acquired by Seller shall be
borne ratably among the selling parties, in proportion to the shares registered
pursuant to the Registration Statement.  Nothing herein shall be interpreted to
permit any improper trading by any shareholder who shall be an "affiliate," as
that term is understood under the federal securities laws, or otherwise subject
to restrictions applicable to short-swing trades and insider trading under
federal and state securities laws.
 
     2.10.  Effect of Any Excess Issuance of Stock.   In the event that the sum
            --------------------------------------
of the Initial Consideration Value and the Interim Consideration Value shall
exceed the final purchase price as of


                                       8
<PAGE>
 
June 30, 1999, it shall not be intended that any amount of the shares of
Purchaser's common stock theretofore issued to Seller shall be returnable on
such subsequent valuation, absent either (a) Seller or Shareholder's fraud or
breach of representations, warranties or covenants under this Agreement giving
rise to any such party's liability under Article X of this Agreement or (b)
Purchaser's election of the unwinding procedure described in Section 2.11.
Notwithstanding anything herein, Purchaser shall not be required to accept any
- -------------------------------
return of shares to Purchaser in event of fraud or breach by Seller or
Shareholder as an offset to any liability of Seller or Shareholder.
 
     2.11.  Unwinding Procedure.   On or before the later of (a) the date on
            -------------------                                             
which Purchaser shall pay any Additional Consideration relating to the Final
Payout period, or (b) at any time when there shall be an unresolved dispute
regarding valuation relating to the Final Payout Period, Purchaser may, at
Purchaser's sole option give notice to Seller that Purchaser has elected to
unwind this transaction ("Purchaser's Unwinding Election") and set a date and
time not less than 10 nor more than 45 days thereafter (such date, and any date
to which the parties by mutual consent shall postpone the unwinding, the
"Unwinding Date") to exchange instruments to effect such unwinding in Boulder,
Colorado.  In the event of Purchaser's Unwinding Election, each of the parties
shall take all necessary action on or before the Unwinding Date as follows:
 
            a.  Purchaser shall reassign to Seller the Patent pursuant to the
reassignment procedures described in Section 5 of the Irrevocable License and
Assignment of Patents set forth as Exhibit E;
 
            b.  Seller shall return to Purchaser the certificates evidencing
shares of Purchaser's common stock theretofore issued as Initial Consideration
and Additional Consideration, together with an executed stock power sufficient
to transfer the same unto Purchaser;
 
            c.  No further consideration shall be payable by Purchaser in
respect of this Agreement; and

            d.  At any time and from time to time after the unwinding date, at
the request of Purchaser and Seller and without further consideration, each
shall execute and deliver to the other such other instruments of sale, transfer,
conveyance, assignment and confirmation and take such action as the other may
reasonably deem necessary to more effectively transfer, convey and assign and
confirm Seller's title to the Patent, subject only to such licenses as are
permitted under the unwinding provisions of the Irrevocable License and
Assignment of Patents, and to transfer, convey and assign and confirm
Purchaser's title to the shares evidenced by certificates previously delivered
by Purchaser as Initial or Additional Consideration hereunder.

     No exercise of Purchaser's Unwinding Election and no performance of
procedures in accordance with this Section shall be considered to waive any
other rights of the parties under this Agreement relating to any breach of this
Agreement prior to or in connection with the foregoing unwinding procedure.  All
covenants, warranties and indemnification under this Agreement shall survive for
a period of three (3) years after the Unwinding Date.


                                       9
<PAGE>
 
            e.  Notwithstanding Anything Herein, Purchaser shall have no right
                -------------------------------
to elect unwinding under this Section 2.11 if the aggregate amount of all
Initial Consideration Value, Interim Consideration Value and Additional
Consideration payable under Section 2.05(a) shall equal or exceed the Minimum
Total Consideration set forth in Section 2.05(b).

     2.12.  Waiver of Unwinding Procedure.   At any time, Purchaser shall have
            ------------------------------                                     
the option to waive the unwinding procedure described by Section 2.11, pursuant
to the procedures therefore set forth in the Irrevocable License and Assignment
of Patents.
 
III. CLOSING.

     3.01.  Closing.   The Closing shall take place at 10:00 a.m., Missouri
            -------
time, on the 11th day of May, 1996, at the offices of Seller, 303 -1 N. 10th
Street, Ozark, Missouri 65721, or at such other time and place as the parties
may agree. The day on which the Closing actually occurs is sometimes referred to
as the Closing Date. In the event a condition to Closing set forth herein
excuses either party's obligation to close, such party may in its or his sole
discretion elect, on five (5) days prior notice to the other party, to postpone
the Closing from time to time, until such condition has been met or waived by
such party, but in no event to a date later than June 30, 1996, it being
understood that time is of the essence.

     3.02.  Seller and Shareholder's Obligations at Closing.
            ----------------------------------------------- 

            a.  At the Closing, Seller and Shareholder shall deliver to
Purchaser:

                (i)    A Cashier's or Certified Check drawn by Seller to the
order of Purchaser in the aggregate amount of all Seller's cash on hand and in
banks, less the sum of the amount of all previously drawn uncleared checks and
       ----
the Tax Escrow (and Seller agrees to retain in such banks an amount equal to
such uncleared checks and Tax Escrow pending payment of uncleared checks and
taxes in respect of income from Seller's Assets and business through the date of
Closing), or, at Seller's option, an assignment of any of such bank accounts of
Seller in form and substance satisfactory to Purchaser;

                (ii)   A Bill of Sale duly executed by Seller in the form of
Exhibit A;

                (iii)  A Shareholder's Agreement executed by Seller and
Shareholder in the form of Exhibit B;

                (iv)   An Employment Agreement executed by Shareholder in the
form of Exhibit C;

                (v)    A Non-Competition Agreement executed by Shareholder and
Seller in the form of Exhibit D;

                                      10
<PAGE>
 
                (vi)   An Irrevocable License and Assignment of Patent, and the
Summary Assignment of Patent annexed thereto for filing with the U.S. Patent
Office, executed by Seller and Shareholder in the form of Exhibit E;

                (vii)  Articles of Amendment to Seller's Articles of
Incorporation, fully executed and ready to be filed with the Missouri Secretary
of State as of the Closing Date, changing Seller's name to a name previously
reserved with such Secretary of State, which name shall not be similar to the
current name of Seller to be assigned to Purchaser's Subsidiary, delivery of
which at Closing shall authorize filing of the same by Purchaser on Seller's
behalf;

                (viii) Such other good and sufficient instruments of sale,
conveyance, assignment and transfer, in form and substance satisfactory to
Purchaser's counsel, as shall be effective to vest in Purchaser good and
marketable title to Seller's Assets;

                (ix)   The final form of all Schedules to this Agreement not
attached hereto on the date hereof;

                (x)    All contracts, license agreements, patent documents,
files and other data and documents pertaining to Seller's Assets, except
Seller's minute books and stock transfer records, it being contemplated that
Seller may deliver same by leaving such items, with finding lists, in Seller's
offices the lease or title to which will be transferred to Purchaser as of
Closing;

                (xi)   A Certificate of Secretary of Seller, certifying copies
of actions by written consent or minutes in form satisfactory to Purchaser's
counsel authorizing the sale of Seller's Assets and certifying the bylaws of
Seller as of Closing;

                (xii)  An opinion of Seller's counsel in form and substance
satisfactory to Purchaser and Purchaser's counsel;

                (xiii) All other documents and instruments required to be
delivered to Purchaser under the provisions of this Agreement.
 
            b.  At any time and from time to time after the Closing, at
Purchaser's request and without further consideration, Seller and Shareholder
shall execute and deliver such other instruments of sale, transfer, conveyance,
assignment and confirmation and take such action as Purchaser may reasonably
deem necessary to more effectively transfer, convey and assign and confirm
Purchaser's title to all of Seller's Assets, to put Purchaser in actual
possession and operating control thereof and to assist Purchaser in exercising
all rights with respect thereto.

            c.  Purchaser shall retain, in any form of storage determined by
Purchaser, all books and records pertaining to the business of Seller prior to
Closing for a period of three years after Closing, and shall permit Seller
reasonable access to such books and records during normal business hours in a
manner not disruptive to Purchaser's business operations.


                                      11
<PAGE>
 
            d.  Seller agrees that Purchaser shall have the right and authority
to collect for its own account all receivables and other items which shall be
transferred to Purchaser as provided herein and to endorse with the name of
Seller any checks received on account of any receivables or other items.  Seller
agrees to promptly transfer and deliver to Purchaser cash and other property
which Seller may receive in respect of such receivables or other items.

     3.03.  Purchaser's Obligations at Closing.
            ---------------------------------- 

            a.  At the Closing, Purchaser shall deliver to Seller and 
Shareholder:

                (i)    A stock certificate, representing the number of shares of
the common stock of Purchaser required to be delivered pursuant to Section
2.01(a) of this Agreement, after adjustment as necessary to reflect the actual
amount of Initial Consideration to be paid in cash and by way of Purchaser's
note, setting forth on the face and reverse thereof a summary of the
restrictions on transfer set forth in the Shareholder's Agreement;

                (ii)   An Employment Agreement executed by Purchaser;

                (iii)  A Non-Competition Agreement executed by Purchaser;

                (iv)   An opinion of Purchaser's counsel in form satisfactory to
Seller and Seller's counsel; and

                (v)    All other documents and instruments required to be
delivered to Seller under the provisions of this Agreement.

IV.  REPRESENTATIONS AND WARRANTIES OF SELLER AND SHAREHOLDER.

     Seller and Shareholder each jointly and severally represent and warrant to
Purchaser and Purchaser's Subsidiary as follows:

     4.01.  Organization, Standing and Qualification.   Seller is a corporation
            ----------------------------------------                           
duly organized, validly existing and in good standing under the laws of the
State of Missouri; it has all requisite corporate power and authority to carry
on its business as it is now being conducted and to own, lease or operate its
properties as and in the place(s) where such business is now being conducted and
such properties are now owned, leased or operated; and it is duly qualified to
do business in all jurisdictions in which the nature of its business or
character of its properties requires it to be qualified, licensed or
domesticated, all of which are listed on Schedule 4.01. Seller has delivered to
Purchaser a true copy of Seller's Articles of Incorporation, certified as of
recent date by the Secretary of State of the State of Missouri, and the bylaws
as presently in effect, certified as true and correct by Seller's Secretary, and
neither the Articles of Incorporation or bylaws have been amended subsequent to
the date of either such certificate.


                                      12
<PAGE>
 
     4.02.   Subsidiaries. Seller has no subsidiaries and has no interest,
             ------------
direct or indirect, in any other corporation, joint venture, partnership or
other business enterprise except as specifically disclosed on Schedule 4.02. No
business of Seller or involving any of Seller's Assets including the
Intellectual Property has been carried on through any other entity affiliated
with Shareholder or any shareholder of Seller.

     4.03.   Transactions with Certain Persons. Except as specifically described
             ---------------------------------
on Schedule 4.03, during the past three (3) years, Seller has not, directly or
indirectly, purchased, leased or otherwise acquired any property from or sold,
leased or otherwise disposed of any property to, or otherwise dealt with, in the
ordinary course of business or otherwise, (a) any shareholder of Seller, (b) any
person or entity which directly or indirectly controls, is controlled by, or is
in common control with Seller or any shareholder of Seller.  Except as
specifically described on Schedule 4.03, no amount is owed to or by Seller in
respect of any agreement with or commitment to any of Seller's shareholders,
officers, directors, employees or consultants, except with respect to current
services not yet due and payable and reimbursement of current expenses arising
in the ordinary course of business.  No part of the assets of any shareholder of
Seller or any affiliate of any shareholder of Seller has been used in Seller's
business during the last three (3) years.

     4.04.   Execution, Delivery and Performance.  None of the execution,
             -----------------------------------
delivery or performance of this Agreement by Seller or Shareholder will, with or
without the giving of notice or the passage of time or both, conflict with,
result in a default, right to accelerate or loss of rights under, or result in
or create any liability, reassessment or revaluation of assets, lien, charge or
encumbrance pursuant to any provision of Seller's Articles of Incorporation or
bylaws, franchise, mortgage, deed of trust, lease, license agreement,
understanding, law, ordinance, regulation, rule, order, judgment or decree or
other legal or contractual requirement to which Seller, Shareholder or any
shareholder of Seller is a party or by which any of them or any of Seller's
Assets may be bound or affected. Seller and Shareholder have all requisite power
to execute, deliver and perform this Agreement, and all necessary consents of
Seller or its shareholders to authorize the execution, delivery and performance
of this Agreement will have been taken prior to Closing. This Agreement
constitutes a valid and binding agreement of Seller and Shareholder, enforceable
against each of them in accordance with its terms.

     4.05.   Capitalization.  The presently issued and outstanding stock of
             --------------
Seller and the names and addresses of all of Seller's shareholders are set forth
on Schedule 4.05. All issued and outstanding stock of Seller set forth on
Schedule 4.05 is fully paid and nonassessable. Except as set forth on Schedule
4.05, there are no outstanding subscriptions, options, warrants, calls,
contracts, demands, commitments, convertible securities or other agreements or
arrangements of any character whatever under which Seller may become obligated
to issue, assign or transfer any shares of the capital stock of Seller.
Shareholder is the sole lawful record and beneficial owner of the number of
shares set forth opposite Shareholder's name on such Schedule 4.05, and under
the Articles of Incorporation and the bylaws as currently in effect, no change
to Seller's Articles of Incorporation or dissolution of Seller can occur, as a
practical matter, without an affirmative vote of Shareholder

                                      13
<PAGE>
 
to effect such change, and Shareholder represents and warrants that he will
consent to no such change during the holding periods specified under the
Shareholder's Agreement.

     4.06.   Financial Statements.   Seller has delivered to Purchaser copies of
             --------------------                                               
the following financial statements, all of which are identified to this
Agreement, all of which are complete and correct and have been prepared in
accordance with generally accepted accounting principals consistently applied
and maintained throughout the periods indicated and fairly present the financial
condition of Seller as of their respective dates and the results of its
operations for their respective periods:

             a.    An unaudited balance sheet of Seller as at December 31, 1995,
as at December 31, 1994, and December 31, 1993 and the related statements of
earnings and source and application of funds for the three fiscal years then
ended;

             b.    An unaudited balance sheet of Seller (the "Balance Sheet") as
at March 31, 1996 (the "Balance Sheet Date") and the related statements of
earnings and source and application of funds for the three month period then
ended (the "Interim Financial Statement").

Such statements of earnings contain no items of special or nonrecurring income
or any other income not in the ordinary course of Seller's business except as
expressly specified therein, and such Interim Financial Statement includes all
adjustments, which consist only of normal recurring renewals, necessary for
fair presentation of Seller's Assets and business.

     4.07.   Absence of Undisclosed Liabilities. Except as set forth in Schedule
             ----------------------------------
4.07 and to the extent specifically reflected or reserved against on the face of
the Balance Sheet (excluding the  notes), as of the Balance Sheet Date, Seller
had no debts, liabilities or obligations, absolute or accrued, contingent or
otherwise, of any nature whatsoever, including all tax liabilities deferred or
otherwise incurred in respect of Seller's income or business, relating to or
arising out of any act, omission, transaction, circumstance, sale of goods or
services, state of facts or other condition which occurred or existed on or
before the Balance Sheet Date, whether or not then due or payable.

     4.08.   Taxes.  All taxes, including without limitation, income, property,
             -----                                                              
sales, use, franchise, added value, income withholding and social security
taxes, imposed by the United States, any state, municipality, district,
instrumentality, or any subdivision of the United States, any state or foreign
country, or any other taxing authority, which are due and payable by Seller,
including all interest and penalties in respect thereof ("Seller's Taxes"), have
been paid in full, whether or not disputed, and except for the federal income
tax returns for the year ended December 31, 1995, all tax returns required to be
filed have been timely filed and all deposits in  respect of employees
withholding and other taxes have been duly made.  Seller has not been delinquent
in the payment of Seller's Taxes and has no tax deficiency or claim outstanding
or assessed against it, or proposed to be assessed against it of which Seller or
Shareholder is aware, and there is no basis for any such deficiency or claim.
The tax return for the year ended December 31, 1995, will be timely filed within
the term of the extension period for which Seller has previously filed, and will
show no tax liability 

                                      14
<PAGE>
 
greater than the amount of taxes paid in respect thereof prior to April 15,
1996. There is not now in force any extension of time with respect to the date
on which any tax return was or is due to be filed by or in respect of Seller, or
any waiver or agreement by Seller for the extension of time for the assessment
of any tax.

     4.09.   Absence of Change.  Except as set forth in Schedule 4.09, since the
             -----------------
Balance Sheet Date, Seller has conducted its business only in the ordinary
course consistent with its prior practices and has not (a)  incurred any
obligation or liability, absolute, contingent or otherwise, whether due or to
become due, except current liabilities for trade or business obligations
incurred in the ordinary course of business consistent with its prior practice,
which in the aggregate do not materially or adversely affect the business,
liabilities or financial condition of Seller; (b) mortgaged, pledged or
subjected any of its properties to any lien, security interest, charge or any
other encumbrance or restriction; (c) sold, transferred, leased to others, or
otherwise disposed of any of Seller's Assets or property, except for inventory
sold in the ordinary course of business, or canceled or compromised any debt or
claim or waived or released any right of substantial value; (d) received any
notice of termination of any contract, lease, license, or other agreement or
suffered any damage, loss or destruction, whether or not insured, which in the
aggregate has had a materially adverse effect on the business or prospects of
Seller or Seller's Assets; (e) encountered any labor union organizing activity,
or had any materially adverse change in its relations with its employees,
agents, consultants, customers, suppliers or any governmental authorities; (f)
transferred, licensed or granted any rights under, or entered into any
settlement regarding the breach or infringement of any United States or foreign
patent, copyright, trademark, trade name, invention or similar rights, or
modified any existing risks with respect thereto; (g) made any capital
expenditures in excess of $5,000 in the aggregate of all capital expenditures;
(h) instituted, settled or agreed to settle any litigation, action or proceeding
with respect to Seller or Seller's Assets; (i) failed to replenish inventories
and supplies, consistent with its prior practices and prudent business practice
prevailing in the industry, or made any purchase commitment in excess of the
normal requirements of Seller's business or at any price in excess of current
market price or on any terms more onerous than those usual and customary in the
industry; or (j) experienced any change, event or condition which in the
aggregate of all such changes, events or conditions has had or may have a
material adverse affect on Seller's Assets, condition, properties, liabilities,
or operations.

     4.10.   Litigation and Compliance with Law and Other Instruments.
             -------------------------------------------------------- 
 
             a.    Except as set forth in Schedule 4.10, there is no claim,
legal action, suit, arbitration, governmental investigation or other legal or
administrative proceeding, nor any order, decree or judgment in progress,
pending or in effect, or to the knowledge of Seller or Shareholder threatened,
against or relating to Seller, its officers , directors or employees, Seller's
Assets, its properties or business or the transactions contemplated by this
Agreement, and neither Seller nor Shareholder knows of any basis for the same.

             b.    Seller has complied with all existing laws, rules,
regulations ordinances and decrees applicable to its business, properties or
operations as presently conducted. Neither the

                                      15
<PAGE>
 
ownership nor use of Seller's Assets nor the conduct of its business conflicts
with the rights of any person or entity or violates, or, with or without the
giving of notice or passage or time or both, will violate, conflict with or
result in a default, acceleration or loss of rights under any provision of
Seller's Articles of Incorporation, bylaws, lien, encumbrance, mortgage, deed of
trust, lease, license, agreement, understanding, law, ordinance, regulation,
rule, order, judgment or decree to which Seller is a party or by which it may be
bound. Seller and Shareholder have no knowledge of any proposed orders or
proceedings applicable to Seller's Assets or business which might adversely
affect the same.

     4.11.   Title to Properties.   Seller has good and marketable title to all
             -------------------                                               
Seller's Assets and  properties which it owns or uses in its business including,
without limitation, those reflected in its books and records and in the Balance
Sheet, except inventory sold after the Balance Sheet Date in the ordinary course
of business and including the Intellectual Property assets among Seller's
Assets.  Except as set forth on Schedule 4.11, none of Seller's Assets are
subject to any mortgage, lien, pledge, charge, security interest, encumbrance,
restriction, lease, license, easement, of liability of any nature,  whether
direct or indirect, whether accrued, absolute, contingent or otherwise, except
(i) mortgages or security interests shown on the Balance Sheet or (ii)
imperfections of title and encumbrances which in the aggregate do not materially
affect Seller's Assets, business or properties.  All of the properties listed
and owned, leased or used by Seller are in good operating condition and repair.

     4.12.   Further Schedules.   Attached hereto as Schedule 4.12 are complete
             -----------------                                                 
accurate lists of:

             a.    All real property owned, leased or used by Seller in the
operation of its business, together with a complete description of each material
lease under which Seller claims or holds rights to use of real property;

             b.    As of a date no earlier than March 31, 1996, all of Sellers'
receivables, together with specific information regarding aging of accounts
outstanding more than 30 days;

             c.    All tangible personal property owned, leased or used by
Seller in the business, except for items having an aggregate value of less than
$15,000, setting forth with respect to all such property a summary description
of all leases, claims, encumbrances, charges, and restrictions relating thereto;

             d.    All fire, theft, casualty, liability and other fire insurance
policies insuring Seller or its properties, together with a summary of the risks
insured, limits of coverage, premiums, deductibles (if any), and the date to
which coverage will continue by virtue of premiums already paid prior to
Closing, copies of which policies shall have been provided to Seller prior to
execution hereof;

             e.    All contacts, agreements, commitments or other understandings
or arrangements to which Seller is a party or by which it or any of its property
is bound or affect, but excluding (i) agreements in the ordinary course of
business involving payments or receipts which in the aggregate do not exceed
$25,000, (ii) agreements in the ordinary course of business terminable

                                      16
<PAGE>
 
on less than 30 days' notice without penalty or consideration and involving
payments or receipts which in the aggregate do not exceed $25,000; and

             f.    All collective bargaining agreements, employment and
consulting agreements, executive compensation plans, deferred compensation
agreements, employee retirement or pension plans, employee stock options or
stock purchase plans, group life, health and accident insurance and other
employee benefit plans, arrangements, or commitments including holiday, vacation
and bonus practices to which Seller is bound or which have been customary in the
operation of Seller's business; together with a list of the names and current
compensation rates of all persons including independent contractors for which
all direct and indirect compensation exceeds $45,000 annually.

All of the contracts, agreements, leases, licenses and commitments required to
be listed on Schedule 4.12 which have not been fully performed are valid and
binding, enforceable in accordance with their respective terms, in full force
and effect and validly assignable to Purchaser without any consents which shall
not have been obtained prior to Closing.  Except as disclosed in Schedule 4.12,
no payment to Seller in respect of any agreement has been prepaid more than 30
days prior to the due date thereunder.  Except as disclosed in Schedule 4.12,
there is no default by Seller or to Seller's best knowledge by any other party,
or any circumstance, which with the giving of notice or lapse of time or both,
would constitute a default or basis for any excuse of performance, acceleration
or loss of rights.  Accurate and complete copies of all contracts, agreements,
leases, licenses and commitments, with any amendments thereto, have been
delivered to Purchaser and identified by reference hereto.

 
     4.13.   Intellectual Property.
             --------------------- 

             a.    Except as set forth in Schedule 4.13, Seller owns or
possesses the royalty free licenses or other rights to use all Intellectual
Property, including patents, copyrights, trademarks, service marks, service
names, trade names, and other proprietary rights necessary to conduct its
business as it is presently operated.

             b.    Shareholder is the party named in the Patents identified in
the Irrevocable License and Assignment of Patents, and is the person who made or
caused to be made the applications for the Patents, and is the person who
invented the inventions set forth in the Patents. Seller is now the sole owner
of said Patents, and is the sole owner of all Intellectual Property useful to
employ the Patents. The Patents are valid, and will be in full force in effect
as of the Closing Date. Seller is able to convey to Purchaser, and by the
Irrevocable License and Assignment of Patents at Closing will convey to
Purchaser, all world-wide right, title and interest in the Patents and the
Intellectual Property, including any existing and future improvements thereto,
whether or not patented or patentable (the "Improvements") and all of Seller and
Shareholder's interest in the Patents, in the Intellectual Property, in the
Improvements, in letters patent now or hereafter issued in connection therewith,
including any reissues, renewals, or extensions thereof, and all of Seller or
Shareholder's interest in any other inventions relating to the pneumatic light
field.

                                      17
<PAGE>
 
             c.    Seller and Shareholder have no notice, actual of
constructive, of any competing claims to any of the Intellectual Property. To
the best knowledge of Seller and Shareholder, none of the Intellectual Property
is subject to the claims of any other person, whether as inventors, or as
assignees or licensees of any inventors. To the best knowledge of Seller and
Shareholder, the Intellectual Property is free of all legal and equitable claims
of others, except as specifically set forth in Schedule 4.13.

             d.    No Intellectual Property and no activity of Seller in the
business conflicts with, infringes on, or otherwise violates any rights of
others regarding any patents, trade marks, trade secrets, service marks, trade
names, copyrights, proprietary rights, or other Intellectual Property rights.

             e.    The Patents and the Intellectual Property are free of any and
all liens, security interests, restrictions, claims or other encumbrances of any
kind, and no interest in the Patents or the Intellectual Property has been
assigned, granted, transferred or conveyed to any person except the Seller,
except pursuant to license agreements specifically set forth in Schedule 4.13.
Neither Seller nor Shareholder is in breach or default of any license agreement,
nor, to their best knowledge, is any other party to any license agreement in
breach of such agreement.

             f.    All technical information relating to the Intellectual
Property to be provided to Purchaser at Closing will be current, accurate and
contain sufficient detail to identify, explain and allow full use of the
technical information and the Intellectual Property in operation of the business
employing Seller's Assets without any need to rely on the special knowledge or
memory of Shareholder, any of Seller's consultants or employees, or any other
person.

             g.    Seller and Shareholder have taken all reasonable security
measures to protect the secrecy, confidentiality, and value of the Intellectual
Property.  Except as disclosed in patent applications and copyright
applications, no Intellectual Property is a part of the public knowledge or
literature, nor, to the best knowledge of Shareholder or Seller, has any
Intellectual Property been used, divulged or appropriated for the benefit of any
person.

     4.14.   Guaranties.   Seller has not guaranteed or otherwise become
             ----------                                                 
contingently liable for the obligations or liabilities of any other person or
entity.

     4.15.   Inventory.   All items of inventory, raw materials, work in process
             ---------                                                          
and finished goods reflected on the Balance Sheet or thereafter acquired which
have not been sold or disposed of in the ordinary course of business are
merchantable or suitable for production of merchantable products, for sale in
the ordinary course of business, and none of such items is obsolete or below
standard quality.  Each item of inventory reflected on the Balance Sheet and the
books and records of Seller is so stated on the basis of physical count and
valued at the lower of cost (on a last-in first-out basis) or market in
accordance with generally accepted accounting principles consistently applied.
Seller's Assets at Closing will include a sufficient but not excessive quantity
of each type of inventory and 

                                      18
<PAGE>

supplies to meet the normal requirements of Seller's business and operations for
not less than 2 months nor more than 3 months.

     4.16.   Receivables.   All receivables of Seller (including accounts
             -----------                                                 
receivable, loans receivable and advances) which are reflected on the Balance
Sheet, and all such receivables which will have arisen since the date thereof
prior to Closing, shall have arisen only from bona fide transactions in the
ordinary course of business and shall be fully collectable when due or within 90
days of original invoice, without resort to litigation and without offset or any
counterclaim relating to events prior to Closing, in the aggregate amount
thereof except for normal allowance for doubtful accounts in accordance with
Seller's prior practices as reflected in its most recent annual financial
statements.

     4.17.   Employee Benefit Plan Matters.   There has been no (i) termination
             -----------------------------
of any "defined benefit plan" within the meaning of the Employee Income Security
Act of 1974 ("ERISA") maintained by Seller or any affiliate under common control
with Seller, (ii) commencement of termination proceedings under any such plan
pursuant to ERISA, or otherwise or (iii) written notice to Seller or any
affiliate to commence or seek commencement of such proceedings.  All accrued
benefits under each pension plan of Seller covering any employees to be
transferred to the employ of Purchaser's Subsidiary following the Closing
("Transferred Employee") shall be fully provided for as of the Closing by any
one or more of (i) annuity contracts for the benefit of such Transferred
Employees issued by an insurer acceptable to Purchaser or (ii) transfer to a
successor plan maintained by Purchaser for the benefit of such Transferred
Employees of property having a fair market value of the present value of such
accrued benefits, all of which shall be based upon reasonable actuarial
assumptions by a qualified actuary.  Each funded pension plan maintained by
Seller for one or more Transferred Employee constitutes a qualified plan under
Section 401(a) of the Internal Revenue Code of 1986 and meets applicable ERISA
requirements.

     4.18.   Environmental Compliance.   The Company has received no notice of 
             ------------------------  
any claim, proceeding or investigation under federal, state or local law,
relating to the Environmental Laws, as hereinafter defined, which are not set
forth in Schedule 4.10, except such matters as are set forth in the financial
statements as of the Balance Sheet Date. Matters relating to the Environmental
Laws pursuant to this Agreement shall include any matter under federal, state or
local law, relating to air, surface, soil, subsurface or water pollution, soil
monitoring, or the storage, treatment, disposal, removal, remediation, release,
discharge or emission of any Hazardous Material. For the purpose of this
Agreement "Hazardous Material" shall mean any flammables, asbestos, explosives,
radioactive material, hazardous wastes, toxic, carcinogenic, teratogenic or
related material, including without limitation any substances defined or
included in the definition of "hazardous materials," "hazardous substances,"
"hazardous wastes," or "toxic substances" under any federal, state or local law,
rule, regulation, order, or designation of materials potentially dangerous to
public health or safety when present in the environment. Seller has never owned,
leased, operated or otherwise controlled any real property with respect to which
a claim or proceeding is presently pending or threatened. There has been no
spill, disposal, discharge or other release of any Hazardous Material, into,
upon, from or over any such real property or into any adjacent land, waterway or
subsurface formation, and no acts of

                                      19
<PAGE>
 
Seller, or any affiliated predecessor, or other person on any such real property
which would give rise to any claim or proceeding under the Environmental Laws.

     4.19.   Product Warranty.   Seller has no liability (and there is no basis
             ----------------
for any present or future action, suit, proceeding, hearing, investigation,
charge, complaint, claim or demand against Seller giving rise to any liability)
for replacement or repair thereof or for other damages in connection therewith
which could exceed, in the aggregate, Seller's product liability insurance and
the reserve for claims set forth in the Balance Sheet and included in the most
recent financial statements, as adjusted for the passage of time through Closing
in accordance with the past custom and practice of Seller.

     4.20.   Investment Intention.  Seller represents and warrants that (a) it 
             --------------------
has had an opportunity to inspect all books, records and properties of Purchaser
and to ask questions of corporate officials and employees, and that it obtained
all such information and asked and received adequate answers to all such
questions as are necessary to adequately evaluate the business and prospects of
Purchaser; (b) Seller understands that the dental management, infection control,
and fluoride products, miniature motor and multi-axis controls businesses of
Purchaser presents substantial risk of loss of the entire investment represented
                   -------------------------------------------------------------
by the value of Seller's Assets, including, without limitation, risks relating
- -------------------------------                                               
to casualty losses, risks relating to liability to third parties, risks related
to the value and validity of certain patents, inventions and trade secrets held
or to be acquired by Purchaser, economic risks related to the relative
competitive position of Purchaser in its various market sectors, economic risks
related to possible new entries into the market, economic risks relating to the
highly innovative nature of the dental management, infection control, fluoride
products, miniature motor, and multi-axis control industries and Purchaser's
vulnerability to technological innovations, economic risks relating to the fact
that such businesses are highly reactive to uncertainty and/or decline in the
regional and/or national economy, and the business uncertainty inherent in any
business dependent on customer satisfaction and loyalty, and economic risks
associated with the relative costs and price structure of the Purchaser in each
of its markets, and Seller has relied solely on the knowledge of its officers
and directors and advisors to its Board of Directors to analyze the prospects of
Purchaser, and the advisability of the sale of Seller's Assets for securities of
Purchaser contemplated by this  Agreement;  (c) Seller and, to Seller and
Shareholder's best knowledge, each of Seller's shareholders are able to bear the
loss of his entire investment in Purchaser and Seller, as the case may be;  (d)
Seller understands that the value of the Purchaser's shares is speculative and
that the history of Purchaser may not be relied upon as an indicator of its
future, and that Purchaser's shares may be worth much less in the future than
the value of Seller's Assets which Seller is giving in exchange;  (e) Seller is
a Missouri corporation, is buying for long term investment, for its own account
without any intent of distribution, is the sole party in interest and will
maintain its corporate existence for the term of the Shareholder's Agreement and
will not transfer or distribute any shares in Purchaser to its shareholders or
any other person or entity, by dividend, dissolution or otherwise until such
shares are no longer subject to any of: (i) the holding period under the
Shareholder's Agreement, (ii) the unwinding option of Purchaser described in
Section 2.11 of this Agreement, or (iii) Rule 144 promulgated under the
Securities Act of 1933, and applicable law and regulations;  (f) during the term
of the Shareholder's Agreement, Seller will comply in every respect with
applicable 

                                      20
<PAGE>
 
law permitting any proposed transfer of shares in Seller held by any
of Seller's shareholders, and will permit no transfers of such shares without an
opinion of counsel satisfactory to Seller, Seller's counsel, Purchaser and
Purchaser's counsel that such transfer complies in every respect with applicable
law, at Seller or Seller's shareholder's expense;  (g) Seller understands that
the Shareholder's Agreement and the securities laws of the United States,
Colorado and Missouri prohibit or restrict subsequent transfer of Purchaser's
shares to third parties, without registration thereof, and that Purchaser is
under no obligation to cause the registration of any of Purchaser's Shares,
except the limited concurrent registration right accorded Seller under Section
2.09 of this Agreement; (h) Seller understands that Purchaser, at Purchaser's
sole election, can require return of the Shares in exchange for reassignment of
the Patent and (i) Seller understands that Purchaser's shares to be given as
consideration hereunder are "restricted securities" and that a legend
restricting sales will appear on the certificate(s) representing such shares.

     4.21.   Accuracy of Disclosure.   No representation or warranty of Seller
             ----------------------
or Shareholder in this Agreement, nor any statement, schedule or certificate
furnished hereunder, contains or will at Closing contain any untrue statement of
a material fact or omits or will omit to state any material fact required to
make the statements therein contained not misleading or necessary to provide
Purchaser with adequate information as to Seller's Assets, condition,
properties,  liabilities and business, and Seller and Shareholder have disclosed
to Purchaser in writing all material adverse facts known to them.   Purchaser
shall not be considered to have notice of any matters not set forth in specific
particularity in this Agreement and the exhibits and schedules hereto, unless
such notice is given to Purchaser in writing at least ten (10) days prior to the
Closing.

V.   REPRESENTATIONS AND WARRANTIES OF PURCHASER.

     Purchaser represents and warrants to Seller and Shareholder as follows:

     5.01.   Organization, Standing and Qualification.   Purchaser is a 
             ----------------------------------------
corporation duly organized, validly existing and in good standing under the laws
of the State of Colorado; it has all requisite corporate power and authority to
carry on its business as it is now being conducted and to own, lease or operate
its properties as and in the place(s) where such business is now being conducted
and such properties are now owned, leased or operated; and it is duly qualified
to do business in all jurisdictions in which the nature of its business or
character of its properties requires it to be qualified, licensed or
domesticated. Purchaser has delivered to Seller a true copy of Purchaser's
Articles of Incorporation, certified as of recent date by the Secretary of State
of the State of Colorado, and the bylaws as presently in effect, certified as
true and correct by Seller's Secretary, and neither the Articles of
Incorporation nor bylaws have been amended subsequent to the date of either such
certificate.

     5.02   Subsidiaries.  Purchaser has five operating subsidiaries as follows:
            ------------
(a) Biotrol International, Inc., a Delaware corporation; (b) Challenge Products,
Inc., a Missouri corporation, (c) Pro-Dex Management, Inc., a California
corporation; (d) Micro Systems Acquisition Corporation, a Colorado corporation;
and Oregon Micro Systems, Inc., an Oregon corporation.  On or before the 

                                      21
<PAGE>
 
Closing Date, Purchaser shall cause to be incorporated a Colorado corporation
known as Pnu-Light Acquisition Corporation, which shall be Purchaser's
Subsidiary for the purposes of this Agreement, to which Purchaser will assign
its rights but not its obligations hereunder.

     5.03.  Execution, Delivery and Performance.   None of the execution, 
            -----------------------------------
delivery or performance of this Agreement by Purchaser will, with or without the
giving of notice or the passage of time or both, conflict with, result in a
default, right to accelerate or loss of rights under, or result in or create any
liability, reassessment or revaluation of assets, lien, charge or encumbrance
pursuant to any provision of Purchaser's Articles of Incorporation or bylaws,
franchise, mortgage, deed of trust, lease, license agreement, understanding,
law, ordinance, regulation, rule, order, judgment or decree or other legal or
contractual requirement to which Purchaser is a party or by which any of them
may be bound or affected. Purchaser has requisite power to execute, deliver and
perform this Agreement. All proceedings required to be taken by Purchaser to
authorize the execution, delivery and performance of this Agreement will have
been taken prior to Closing and this Agreement constitutes a valid and binding
agreement of Purchaser, enforceable against it in accordance with its terms.

     5.04.  Capitalization.   Purchaser has 8,631,300 shares of its common stock
            --------------
issued and outstanding and 78,129 shares of its preferred stock issued and
outstanding, all of which shares are fully paid and nonassessable.  In addition
to the foregoing, Purchaser has heretofore granted options to acquire 1,041,120
shares of its common stock under its 1994 Stock Option Plan, and a total of
1,500,000 shares are reserved for issuance on exercise of past and future
options granted under such plan.  Purchaser has also heretofore granted options
to acquire 55,856 shares of its common stock under its Directors' Stock Option
Plan, and a total of 500,000 shares are reserved for issuance on exercise of
past and future options granted under such plan.  Purchaser has also heretofore
granted options to acquire 55,000 shares of its common stock under its 1988
Stock Option Plan, and a total of 150,000 shares are reserved for issuance on
exercise of past and future options granted under such plan.  In addition, there
are currently outstanding warrants to acquire 139,000 shares of Purchaser's
common stock.  Except as set forth herein, there are no other options, warrants
or other rights to acquire Purchaser's shares currently outstanding.   Until the
earliest of June 30, 1999 or any Unwinding Date, Purchaser shall not grant any
options or warrants to acquire Purchaser's common stock except for grants under
any of the following circumstances: (a) pursuant to qualified stock option plans
for the benefit of employees, directors or consultants; (b) pursuant to an
agreement relating to merger, acquisition or purchase of substantially all the
assets of a business or division of a business; (c) pursuant to a registration
statement filed with the Securities and Exchange Commission; (d) pursuant to any
refinancing arrangement relating to indebtedness of Purchaser or any subsidiary
of Purchaser; or (e) pursuant to any arrangement wherein the sum of the
consideration given for grant of such option or warrant and the exercise price
shall be at least equal to 100% of the last sale price reported by NASDAQ prior
to the date of grant (or, at Purchaser's option, the date on which an obligation
to make such grant was entered into by Purchaser).
 
     5.05.   Authorization of Stock Issuance.   Issuance of the shares of common
             -------------------------------                                    
stock of Purchaser which are required to be issued in respect of the Initial
Consideration referred to in Section 

                                      22
<PAGE>
 
2.01 of this Agreement shall have been duly authorized by Purchaser's Board of
Directors at or prior to the Closing, and such shares of common stock when
executed and delivered to Seller pursuant hereto will be validly issued, fully
paid and non-assessable restricted shares of the common stock of Purchaser.
Purchaser's Board of Directors shall have reserved for future issuance a number
of shares adequate to provide for issuance of shares in respect of Additional
Consideration prior to the applicable dates on which Purchaser shall issue such
shares, and such shares of common stock when executed and delivered to Seller
pursuant hereto will be validly issued, fully paid and non-assessable restricted
shares of the common stock of Purchaser.

     5.06.   Financial Statements.   Purchaser has delivered to Seller copies of
             --------------------                                               
the following financial statements, all of which are identified to this
Agreement, all of which are certified by Purchaser's independent public
accountants, and have been prepared in accordance with generally accepted
accounting principals consistently applied and maintained throughout the periods
indicated and fairly present the financial condition of Purchaser as of their
respective dates and the results of its operations for their respective periods:

          a.   Audited balance sheets of Purchaser as at June 30, 1995 and as at
December 30, 1994, and the related statements of earnings and source and
application of funds for the three fiscal years then ended, as incorporated in
Purchaser's Forms 10-KSB filed with the Securities and Exchange Commission; and

          b.   Unaudited balance sheets of Purchaser as at September 30, 1995,
December 31, 1995 and March 31, 1996 (the last of which, the "Balance Sheet
Date") and the related statements of earnings and source and application of
funds for the three month periods then ended (the "Interim Financial
Statements"), as incorporated in Purchaser's Forms 10-QSB filed with the
Securities and Exchange Commission.

     5.07.   Absence of Change.  Except as set forth in Schedule 5.07, since the
             -----------------
Balance Sheet Date, Seller has conducted its business only in the ordinary
course consistent with its prior practices and has not (a) incurred any
obligation or liability, absolute, contingent or otherwise, whether due or to
become due, except current liabilities for trade or business obligations
incurred in the ordinary course of business consistent with its prior practice,
which in the aggregate do not materially or adversely affect the business,
liabilities or financial condition of Seller; (b) declared or made any payment
of dividends or other distribution to its shareholders or redeemed, retired or
purchased any of its securities; (c) mortgaged, pledged or subjected any of
Seller's Assets to any lien, security interest, charge or any other encumbrance
or restriction; (d) sold, transferred, leased to others, or otherwise disposed
of any of Seller's Assets, except for inventory sold in the ordinary course of
business, or canceled or compromised any debt or claim or waived or released any
right of substantial value; (e) received any notice of termination of any
contract, lease, license, or other agreement or suffered any damage, loss or
destruction, whether or not insured, which in the aggregate has had a materially
adverse effect on the business or prospects of Purchaser; (f) or experienced any
change, event or condition which in the aggregate of all such changes, events or
conditions has had or may have a material adverse affect on Purchaser.
 
                                      23
<PAGE>
 
     5.08.   Litigation.   There is no legal action, suit, arbitration,
             ----------                                                
governmental investigation or other legal or administrative proceeding, nor any
order, decree or judgment in progress, pending or in effect, or to the knowledge
of Purchaser threatened, against or relating to the transactions contemplated by
this Agreement, and Purchaser does no know or have any reason to be aware of any
basis for the same.

     5.09.   Accuracy of Disclosure.  No representation or warranty of Purchaser
             ----------------------                                             
in this Agreement, nor any statement, schedule or certificate furnished
hereunder, contains or will at Closing contain any untrue statement of a
material fact or omits or will omit to state any material fact required to make
the statements therein contained not misleading or necessary to provide Seller
with adequate information as to Purchaser's condition, properties, assets,
liabilities and business.



VI.  CONDUCT OF BUSINESS PRIOR TO CLOSING.

     6.01.   Conduct of Business Prior to Closing.  From and after the date of
             ------------------------------------                             
this Agreement, and until the Closing, in the event Closing shall not occur on
the date of execution of this Agreement, except as specifically approved by
Purchaser, in writing, Shareholder and Seller shall:

          a.    afford Purchaser reasonable access;

          b.    carry on the Company's business in its regular course,
safeguarding all of Seller's Assets;

          c.    issue no dividends, distribute no shares or other assets, and
make no repurchases of shares,
 
          d.    make no alterations to compensation of any officer or employee
earning in excess of $25,000 annually,

          e.    enter into no contract, commitment or agreement which shall
obligate any performance or payment by Purchaser or Seller which would cause a
material adverse effect on the Seller's Assets, business, properties or
prospects;
 
          f.    dispose of no capital asset of the Company, and permit no lien
on any asset; and

          g.    neither breach nor default in the performance of any obligation
of the Company.
 
                                      24
<PAGE>
 
       6.02.    Brokerage.   Purchaser, Seller and Shareholder represent,
                ---------
covenant and agree that no broker or other person is entitled to any fee or
commission in connection with consummation of the transactions contemplated by
this Agreement and that no agreement will be entered into between the date
hereof and Closing to make any such payment.

       6.03.    Access to Information and Documents.   On reasonable notice and
                -----------------------------------
during regular business hours, each party hereto will afford the other party and
the other party's attorneys, accountants and other representatives full access
to each party's personnel and all properties, documents, contracts, books and
records and will furnish to the other party such documents and information
regarding each party's affairs as such other party may request. Purchaser will
not improperly disclose information regarding Seller's affairs prior to Closing.
Seller will not improperly disclose any non-public information regarding
Purchaser's affairs at any time. Any information furnished to a party hereunder
shall not affect such party's right to rely on the representations and
warranties made in this Agreement, or the accuracy and completeness of any
exhibit or schedule hereto.

VII.   BULK SALES COMPLIANCE.

       7.01.   Waiver of Compliance.  Purchaser hereby waives compliance by
               --------------------
Seller with the provisions of the Bulk Sales Law of any state, and Seller
warrants and agrees to pay and discharge when due all claims of creditors which
could be asserted against Purchaser by reason of such non-compliance to the
extent that such liabilities are not specifically assumed by Purchaser under
this Agreement.
 
       7.02.   Indemnity by Seller and Shareholder for Non-Compliance.  Seller
               ------------------------------------------------------
and Shareholder each, jointly and severally, hereby indemnify and agree to hold
Purchaser harmless from, against and in respect of (and shall on demand
reimburse Purchaser for) any loss, liability, cost or expense, including without
limitation attorneys' fees, suffered or incurred by Purchaser by reason of the
failure of Seller to pay or discharge such claims, in accordance with the
indemnity provisions of Article X herein. At any time prior to the final
determination of the amount of Additional Consideration, if any, payable by
Purchaser hereunder, Seller shall furnish to Purchaser such evidence as
Purchaser may reasonably request to confirm that the provisions of this Article
VII have been complied with.

VIII.  CONDITIONS PRECEDENT TO PURCHASER'S OBLIGATION TO CLOSE.

       The obligations of Purchaser to effect the transactions described in this
Merger Agreement are subject to the satisfaction, at or before the Closing of
all the conditions set forth in this Article VIII.  Purchaser may waive any or
all of these conditions in whole or in part without prior notice; provided,
however, that no such waiver unless so stated in writing at Closing shall
constitute a waiver of any other condition, or of any of Purchaser's or
Purchaser's Subsidiary's other rights or remedies under this Agreement if Seller
or Shareholder shall be in default of any of its or his representations,
warranties or covenants under this Agreement.

                                      25
<PAGE>
 
     8.01.   Accuracy of Representations and Warranties.  All representations
             ------------------------------------------
and warranties of Seller and Shareholder contained in this Agreement or in any
document delivered to Purchaser shall be true and correct in all material
respects when made and as of Closing.
 
     8.02.   Performance of Covenants and Agreements.  All covenants, agreements
             ---------------------------------------
and obligations of Seller and Shareholder which are required to be performed at
or prior to Closing shall have been duly and properly performed in all material
respects.
 
     8.03.   No Material Adverse Change.  Since the date of this Agreement,
             --------------------------
there shall have been no material adverse change in the Seller's Assets,
business or properties.
 
     8.04.   Certificate of President.   A certificate of the President of
             ------------------------
Seller shall have been delivered to Purchaser, dated as of Closing, that the
conditions to Closing set forth in Sections 8.01, 8.02 and 8.03 have been met.

     8.05.   Acceptance of Schedules.  All Schedules to this Agreement to be
             -----------------------                                        
provided by Seller at Closing shall be in form and substance acceptable to
Purchaser; provided however that Purchaser's willingness to close hereunder
           ----------------                                                
shall not constitute a waiver with respect to any defect or inaccuracy in any
such Schedule or otherwise to constitute any consent of Purchaser to any matter
set forth therein.  All Schedules and Exhibits shall be delivered in final form
not less than seven (7) days prior to the Scheduled Closing.

     8.06.   Acceptance of Cash Consideration Amount.  The cash portion of the
             ---------------------------------------
Initial Consideration payable to Seller at Closing by way of Purchaser's note
shall not exceed $90,000.

     8.07.   All Required Deliveries.  All deliveries required to be made by
             -----------------------
Seller or Shareholder  at or before Closing shall have been made in conformity
with Article III.

IX.  CONDITIONS PRECEDENT TO SELLER AND SHAREHOLDER'S OBLIGATION TO CLOSE.

     The obligations of Seller and Shareholder to effect the transactions
described in this Merger Agreement are subject to the satisfaction, at or before
the Closing of all the conditions set forth in this Article IX.  Seller or
Shareholder may waive any or all of these conditions in whole or in part without
prior notice; provided, however, that no such waiver unless so stated in writing
at Closing shall constitute a waiver of any other condition, or of any of Seller
or Shareholder's other rights or remedies under this Agreement if Purchaser
shall be in default of its representations, warranties or covenants under this
Agreement.

     9.01.   Accuracy of Representations and Warranties. All representations and
             ------------------------------------------
warranties of Purchaser contained in this Agreement or in any document delivered
to Seller and Shareholder shall be true and correct in all material respects
when made and as of Closing.
 
                                      26
<PAGE>
 
     9.02.   Performance of Covenants and Agreements.  All covenants, agreements
             ---------------------------------------
and obligations of Purchaser which are required to be performed at or prior to
Closing shall have been duly and properly performed in all material respects.
 
     9.03.   Certificate of Vice President.  A certificate of the Vice President
             -----------------------------
of Purchaser shall have been delivered to Seller and Shareholder, dated as of
Closing, that the conditions to Closing set forth in Sections 9.01 and 9.02 have
been met.
 
     9.04.   All Required Deliveries.   All deliveries required to be made by
             -----------------------                                         
Purchaser  at or before Closing shall have been made in conformity with Article
III.

X.   SURVIVAL OF REPRESENTATIONS; INDEMNIFICATION.

     10.01.  Survival of Representations.   All representations, warranties,
             ---------------------------                                    
covenants and agreements made by any party in this Agreement shall survive the
Closing Date for the longer of a period of three (3) years, the completion of
any unwinding pursuant to Section 3.11, or the date of any required performance
under this Agreement or any agreement to be executed at the Closing, but all
claims made by virtue of such representations, warranties and agreements shall
be made under, and subject to, the limitations set forth in this Article  X.

     10.02.  Indemnification by Seller and Shareholder.   Each of Seller and
             -----------------------------------------                      
Shareholder, jointly and severally, shall indemnify and save Purchaser and
Purchaser's Subsidiary harmless from, against, for and in respect of:

             a.    any and all damages, losses, settlement payments,
obligations, liabilities, claims, actions or causes of action encumbrances, and
reasonable costs and expenses suffered, sustained, incurred or required to be
paid by Purchaser or Purchaser's Subsidiary, including reasonable attorney's
fees, because of the untruth, inaccuracy or breach of any representation,
warranty, agreement, or covenant of Seller or Shareholder contained in or made
pursuant to this Agreement; and

             b.    all reasonable costs and expenses, including, without
limitation, attorney's fees, interest and penalties incurred by Purchaser or
Purchaser's Subsidiary, in connection with any action, suit, proceeding, demand,
assessment or judgment incident to any of the matters indemnified against in
this Section 10.02.

     10.03.  Indemnification by Purchaser.   Purchaser shall indemnify and save
             ----------------------------                                      
Seller and Shareholder harmless from, against, for and in respect of:

             a.    any and all damages, losses, settlement payments,
obligations, liabilities, claims, actions or causes of action encumbrances, and
reasonable costs and expenses suffered, sustained, incurred or required to be
paid by the indemnified party, including reasonable attorney's fees, because

                                      27
<PAGE>
 
of the untruth, inaccuracy or breach of any representation, warranty, agreement,
or covenant of Purchaser contained in or made pursuant to this Agreement; and

             b.    all reasonable costs and expenses, including, without
limitation, attorney's fees, interest and penalties incurred by Seller or
Shareholder, in connection with any action, suit, proceeding, demand, assessment
or judgment incident to any of the matters indemnified against in this Section
10.03.

     10.04.  Rules Regarding Indemnification. The obligations and liabilities of
             -------------------------------
any indemnifying party with respect to claims arising from the assertion of
liability hereunder shall be subject to the following terms and conditions:

             a.    Each party claiming indemnification shall give prompt written
notice to the indemnifying party of any claim which might give rise to a claim
based on the indemnity agreement set forth in this Article X stating the nature
and basis of said claims and the amounts thereof, to the extent known.

             b.    In the event any action, suit or proceeding is brought
against the indemnified party, with respect to which the indemnifying party may
have liability under the indemnity agreements contained in this Article X, the
action, suit or proceeding shall, upon the written acknowledgment of the
indemnifying party that it is obligated to indemnify under such agreement, be
defended (including all proceedings on appeal or for review which counsel for
the indemnified party shall deem appropriate) by the indemnifying party. The
indemnified party shall have the right to employ its own counsel in any such
case, but the fees and expenses of such counsel shall be at the indemnified
party's own expense, unless (i) both the employment of such counsel and the
payment of such fees and expenses shall have been specifically authorized by the
indemnifying party in connection with the defense of such action, suit or
proceeding, or (ii) such party claiming indemnification shall have reasonably
concluded and specifically notified the indemnifying party that there may be
specific defenses available to it which are different from or additional to
those available to the indemnifying party or that such action, suit or
proceeding involves or could have an effect upon matters beyond the scope of the
indemnity agreements contained in this Article X, in any of which events the
indemnifying party, to the extent made necessary by such defenses, shall not
have the right to direct the defense of such action, suit, or proceeding on
behalf of the indemnified party. (In such case, only that portion of such fees
and expenses reasonably related to matters covered by the indemnity agreements
contained in Article X hereof shall be borne by the indemnifying party.)

             c.    The indemnified party shall be kept fully informed of such
action, suit or proceeding at all stages thereof.  The indemnifying party shall
make available to the indemnified party and its attorneys and accountants all
books and records of the indemnifying party relating to such proceedings or
litigation, and the parties hereto agree to render to each other such assistance
as they may reasonably require of each other in order to ensure the proper and
adequate defense of any such action, suit or proceeding.


                                      28
<PAGE>
 
             d.   The indemnified party shall not make any settlement of any
claims without the written consent of the indemnifying party, which consent
shall not be unreasonably withheld or delayed.

     10.05.  Survival of Indemnification. The indemnification provisions of this
             ---------------------------
Article X shall survive the termination, Closing or consummation of all matters
required to be performed under this Agreement and any exhibit hereto, by the
party against whom indemnification is sought, for a period of five (5) years.

     10.06.  Liability of Shareholder. At any time prior to Seller's 
             ------------------------
distribution of any of the shares of Purchaser's common stock to Seller's
Shareholders, Shareholder's liability to Purchaser and Purchaser's Subsidiary
under this Article X with respect to third party claims against Purchaser or
Purchaser's Subsidiary which are first claimed or asserted after Closing shall
not include any claim or liability of which Shareholder had no notice or
knowledge, unless Shareholder in the exercise of reasonable diligence should
have known of any of (i) the existence of such claim, (ii) the facts from which
such claim arose, or (iii) the defect or other condition giving rise to such
claim or liability. After distribution of shares by Seller to its shareholders,
Shareholder's liability shall be limited to the value of the consideration paid
to Seller and distributed to Shareholder. Nothing herein shall limit the
liability of Seller to Purchaser or Purchaser's Subsidiary under this Article X,
nor shall anything herein limit Shareholder's liability to Seller.

     10.07.  Remedies Cumulative.  Except as otherwise provided herein, the
             -------------------                                            
remedies provided herein and in any exhibit hereto shall be cumulative and shall
not preclude the assertion by any party hereto of any other rights or the
seeking of any other remedies against the other party hereto.

XI.   TERMINATION.

     11.01.  Mutual Agreement.  This Agreement may be terminated at any time by
             ----------------
mutual agreement of the parties hereto.

     11.02.  Upon Default of Seller or Shareholder.  This Agreement may be
             -------------------------------------                         
terminated by Purchaser, if any default of Seller or Shareholder, or any
inaccuracy in any representation by Seller or Shareholder, shall become
apparent, which has a material adverse effect on Seller, Seller's Assets or its
assets.

     11.03.  Upon Default of Purchaser.  This Agreement may be terminated by
             -------------------------                                       
Seller or Shareholder, if any default of Purchaser, or any inaccuracy in any
representation by Purchaser, shall become apparent, which has a material adverse
effect on the value of the Initial Consideration to be delivered at Closing.

     11.04.  Termination. This Agreement shall be terminable by written 
             -----------
agreement of all the Parties, or by written notice of any party, if the Closing
shall not have occurred prior to the later of any agreed adjourned Closing Date
under this Agreement or June 30, 1996.

                                      29
<PAGE>
 
     11.05.  Effect of Termination.  Termination as permitted under this Article
             ---------------------
XI shall be without liability by any party, and each party shall be responsible
for its own legal and accounting fees in connection herewith, except that:

             (a)   In event that this Agreement shall be terminated by Seller or
Shareholder's inability or unwillingness to Close for any reason other than a
breach of Purchaser's representations, warranties or covenants, Seller shall be
liable to Purchaser for Seller's and Purchaser's accounting and legal fees in
preparation for Closing; and

             (a)   In event that this Agreement shall be terminated by the
Purchaser's inability or unwillingness to Close, for any reason other than a
breach of Seller's representations, warranties or covenants, Purchaser shall be
liable to Seller for Purchaser's and Seller's accounting and legal fees in
preparation for Closing;

             (d)   In the event that this Agreement shall be terminated without
any fault of either party, Seller and Purchaser shall each be responsible for
their own respective legal and accounting fees in preparation for Closing.

XII  MISCELLANEOUS.

     12.01.   Amendment and Waiver.  This Agreement may not be amended and no
              --------------------                                            
provision hereof may be waived, except by an instrument in writing signed by all
the parties.  Any waiver of any matter in a particular instance shall not effect
a general waiver of that or any matter.

     12.02.   Expenses.  All fees and expenses incurred by each party in
              --------                                                    
connection with the Agreement shall be borne by that party incurring such fees
and expenses, except as provided in Articles X and XI.  No part of the expenses
incurred by Seller in negotiation of this Agreement or in preparation for
Closing shall constitute a debt assumed by Purchaser hereunder.

     12.03.   Assignment.  Except by written agreement of all parties hereto,
              ----------
the rights and obligations under this Agreement are not assignable or devisable.

     12.04.   Parties in Interest.  All the terms and provisions of this
              -------------------
Agreement shall be binding upon, shall inure to the benefit of and shall be
enforceable by the respective successors and assigns of the parties hereto,
subject to Section 12.03.

     12.05.   Entire Agreement.   This Agreement, including all exhibits and
              ----------------                                              
schedules hereof delivered pursuant hereto (and any exhibits to such exhibits or
schedules), which form a part hereof, contains the entire understanding of the
parties with respect to its subject matter.  There are no restrictions,
agreements, promises, warranties, covenants or undertakings other than those
expressly set forth in this Agreement and its exhibits and schedules.  This
Agreement supersedes all prior agreements and understandings between the parties
with respect to its subject matter.

                                      30
<PAGE>
 
     12.06.  Headings.  The section and paragraph headings contained in this
             --------                                                        
Agreement are for reference purposes only and shall not affect in any way the
meaning or interpretation of this Agreement.
 
     12.07.  Survival.  All covenants, indemnification and warranties shall
             --------                                                       
survive the Closing hereunder for a period of three (3) years after required
performance hereunder.

     12.08.  Notices.  All notices, requests, claims, demands and other
             -------                                                    
communications hereunder shall be in writing and shall be deemed to have been
duly given if personally delivered, transmitted by facsimile or three days after
being mailed by registered or certified mail, postage prepaid, return receipt
requested, as follows:

             a.   If to Seller or Shareholder:

                  Pnu-Light Tool Works, Inc.
                  Attn: Marty J. Anderson, as President
                        and Majority Shareholder
                  303-1 N. 10th Street
                  Ozark, Missouri  65721

                  Facsimile:

                  Copy to:

                  William G. Todd, Esq.
                  Law Office of William G. Todd
                  P.O. Box 2219
                  Nixa, Missouri  65714

                  Facsimile: (417) 725-8499

             b.   If to the Purchaser or Purchaser's Subsidiary:

                  Pro-Dex, Inc.
                  Attn: Kent E. Searl, Chairman
                  1401 Walnut Street, Suite 540
                  Boulder, Colorado  80302

                  Facsimile: (303) 443-4480

                  Copy to:

                  Dawn C. Anderson, Esq.
                  1401 Walnut Street, Suite 500


                                      31
<PAGE>
 
               Boulder, Colorado  80302

               Facsimile: (303) 443-4480
 
               John G. Herbert, Esq.
               Diana L. Powell, Esq.
               John G. Herbert, P.C.
               1675 Larimer Street, Suite 310
               Denver, Colorado  80202

               Facsimile: (303) 534-3638

or to such other address or facsimile number or such additional recipient as any
party may have furnished to the others in writing in accordance herewith, except
that such notices of changes of address shall only be effective upon receipt.

     12.09.  Law Governing.  This Agreement shall be governed by and construed
             -------------
and enforced in accordance with the laws of the State of Colorado, without
regard to its conflict of laws rules, in that Purchaser and Purchaser's
Subsidiary are both Colorado corporations with offices in Boulder, Colorado.

     12.10.  Counterpart Execution.  This Agreement may be executed in duplicate
             ---------------------
counterparts, each of which will be considered an executed original hereof.

     IN WITNESS WHEREOF, this Agreement has been duly executed and delivered by
Shareholder and duly authorized officers of Seller, Purchaser and Purchaser's
Subsidiary as of the date first above written.

                         PURCHASER:

                         PRO-DEX, INC.


                         By:               /s/
                              ------------------------------
                                 Kent E. Searl, Chairman
                                         

                         PURCHASER'S SUBSIDIARY:

                         PNU-LIGHT ACQUISITION CORPORATION


                         By:               /s/
                              ------------------------------
                                 Kent E. Searl, Chairman

                                      32
<PAGE>
 
                         SELLER:

                         PNU-LIGHT TOOL WORKS, INC.


                         By:             /s/
                              ------------------------------
                               Marty J. Anderson, President

                         SHAREHOLDER:

                                    /s/
                         ------------------------------
                         Marty J. Anderson

                                      33

<PAGE>
 
Pro-Dex, Inc.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                                          Telephone 303-443-6136
                                                                Fax 303-443-4480
1401 Walnut St.
Suite # 540
Boulder, CO 80302



15 June 1996

Mr. Charles L. Bull, Pres.
Challenge Products, Inc.
Lake Road 54-22
P.O. Box 468
Osage Beach, MO 65065

VIA FACSIMILE TRANSMISSION ONLY
(314) 348-2228

Dear Charlie:

In accordance with our recent conversations, this letter is to confirm our 
mutual understanding that the Royalty and License Agreements among Challenge 
Products, Inc. ("Challenge"), Pro-Dex, Inc. ("Pro-Dex") and you personally, 
dated 1 July 1993 (the "Royalty and License Agreements"), did not then or now 
accurately reflect the intent of Challenge, Pro-Dex or you personally with 
respect to any matter set forth therein.

Each of Challenge, Pro-Dex and you in executing this letter sets forth the 
understanding of such party that the Royalty and License Agreements were null 
and void from the outset as failing to accurately reflect the intent of the 
parties, and each such party releases each other party of any obligation in
respect thereof, the mutual release of each party being acknowledged hereby to
be full and adequate consideration for the release of each other party hereto,
it being understood that all other agreements among the parties of 1 July 1993
are unaffected by the nullity of the Royalty and License Agreements hereby
evidenced.

Pro-Dex, Inc.                    Challenge Products, Inc.


By:/s/ KENT E. SEARL             By:/s/ CHARLES E BULL      /s/ CHARLES E. BULL
   ______________________           ___________________     ___________________
Kent E. Searl                       Charles L. Bull         Charles L. Bull
Chairman                            President               Individually
<PAGE>
 
                                  ASSIGNMENT

        WHEREAS, I, Charles L. Bull of Lake Road 55-43, Osage Beach, Missouri, 
65065, own the entire right, title and interest in certain inventions for which 
patent applications were filed in the United States Patent and Trademark Office 
as Serial No. ____________, filed __/__/__ (now U.S. Patent 07600585 issued
                                                            -------- 
 __/__/__).

        WHEREAS, Pro-Dex, Inc., a Colorado corporation having a place of 
business at 1401 Pearl St., Boulder, CO 80302 (hereafter "Pro-Dex") desires to 
acquire the entire right, title and interest in the said inventions, and to any 
United States patent therefor;

        NOW, THEREFOR, for valuable consideration, receipt whereof is hereby
acknowledged, I, the above named, Charles L. Bull, hereby assign and transfer to
Pro-Dex, its successors and assigns, the entire right, title and interest in the
said United States patent applications and patents and the invention therein
disclosed for the United States, and all rights of priority resulting from the
filing of said United States application.

        Signed this 30th day of June, 1993.
                    ----        ----

                                      
                                        /s/ Charles L. Bull
                                        --------------------------------------
                                            Charles L. Bull




<PAGE>
 
We hereby consent to the incorporation by reference in the June 1996
registration Statement on Form S-8 of our report, dated August 29, 1996, on the
consolidated financial statements included in Form 10-K of Pro-Dex, Inc. and
subsidiaries for the year ended June 30, 1996.



McGladrey & Pullen, LLP



Anaheim, California
September 27, 1996



<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM PRO-DEX,
INC. AND SUBSIDIARIES (CONSOLIDATED FINANCIAL STATEMENTS, FOR YEAR ENDED JUNE
30, 1996) AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
       
<S>                                       <C>
<PERIOD-TYPE>                                     YEAR
<FISCAL-YEAR-END>                          JUN-30-1996
<PERIOD-START>                             JUL-01-1995
<PERIOD-END>                               JUN-30-1996
<CASH>                                         407,722
<SECURITIES>                                         0
<RECEIVABLES>                                5,069,942
<ALLOWANCES>                                         0
<INVENTORY>                                  4,699,567
<CURRENT-ASSETS>                            10,833,429
<PP&E>                                       5,505,127
<DEPRECIATION>                              (2,186,233)
<TOTAL-ASSETS>                              28,327,488
<CURRENT-LIABILITIES>                        5,524,683
<BONDS>                                              0
                                0
                                    282,990
<COMMON>                                    16,697,660
<OTHER-SE>                                   1,004,541
<TOTAL-LIABILITY-AND-EQUITY>                28,327,488
<SALES>                                     20,833,326<F1>
<TOTAL-REVENUES>                            12,413,593
<CGS>                                        8,419,733
<TOTAL-COSTS>                                9,889,062
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                          (1,025,790)
<INCOME-PRETAX>                              1,544,408<F1>
<INCOME-TAX>                                   338,278
<INCOME-CONTINUING>                          1,206,130<F1>
<DISCONTINUED>                                 (31,600)
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 1,174,530<F1>
<EPS-PRIMARY>                                     0.13<F1>
<EPS-DILUTED>                                     0.13
<FN>
<F1>See Notes to Financial Statements, and expecially matters relating to
financial statement adjustments for discontinued operation at Pro-Dex
Management, Inc. subsidiary.
</FN>
        

</TABLE>


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