ARIZONA INSTRUMENT CORP
DEF 14A, 1996-05-22
INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL
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                            SCHEDULE 14A INFORMATION
                Proxy Statement Pursuant to Section 14(a) of the
                         Securities Exchange Act of 1934

Filed by the Registrant [X]
Filed by a Party other than the Registrant [ ]

Check the appropriate box:

[ ]  Preliminary Proxy Statement
[ ]  Confidential,  for  Use  of the  Commission  Only  (as  permitted  by  Rule
     14a-6(e)(2)) 
[X]  Definitive Proxy Statement 
[ ]  Definitive Additional Materials
[ ]  Soliciting Material Pursuant to ss. 240.14a-11(c) or ss. 240.14a-12

                         ARIZONA INSTRUMENT CORPORATION
                         ------------------------------
                (Name of Registrant As Specified In Its Charter)

                           ---------------------------
     (Name of Person(s) Filing Proxy Statement if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

[X]  $125  per Exchange Act Rules  0-11(c)(1)(ii),  14a-6(i)(1),  14a-6(i)(2) or
     Item 22(a)(2) of Schedule 14A.
[ ]  $500  per  each  party to the  controversy  pursuant to  Exchange  Act Rule
     14a-6(i)(3).
[ ]  Fee computed on table below per Exchange  Act Rules 14a-6(i)(4) and 0-11.

        1)       Title of each class of securities to which transaction applies:

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

        2)       Aggregate number of securities to which transaction applies:

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

        3)       Per  unit  price  or  other  underlying  value  of  transaction
                 computed  pursuant  to  Exchange  Act  Rule 0-11 (Set forth the
                 amount  on which the filing fee is calculated  and state how it
                 was determined):

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

        4)       Proposed maximum aggregate value of transaction:

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

        5)       Total fee paid:

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

[ ]  Fee paid previously with preliminary materials.
[ ]  Check box if any part of  the fee is offset as  provided  by  Exchange  Act
     Rule  0-11(a)(2)  and  identify the filing for which the offsetting fee was
     paid  previously.  Identify  the previous filing by registration  statement
     number, or the Form or Schedule and the date of its filing.
     1)   Amount Previously Paid:
     2)   Form, Schedule or Registration Statement No.:
     3)   Filing Party:
     4)   Date Filed:
<PAGE>
                         ARIZONA INSTRUMENT CORPORATION
                                     [LOGO]
                              4114 East Wood Street
                             Phoenix, Arizona 85040

                    NOTICE OF ANNUAL MEETING OF STOCKHOLDERS
                                  June 27, 1996


TO THE STOCKHOLDERS:

         The Annual Meeting of Stockholders of Arizona Instrument Corporation, a
Delaware corporation (the "Company"), will be held on Thursday, June 27, 1996 at
2:00 p.m.  local time, at the corporate  offices of the Company,  4114 East Wood
Street, Phoenix, Arizona, for the following purposes:

         (1) To elect two  directors  to serve for the next three years or until
their successors are elected;

         (2) To consider and act upon a proposal to amend the Company's Employee
Stock  Purchase Plan to increase the number of shares of Common Stock  available
for grant thereunder by 200,000 shares;

         (3) To consider and act upon a proposal to amend the Company's Employee
Stock Purchase Plan to permit participation by senior officers;

         (4) To  consider  and act upon a proposal to amend the  Company's  1991
Stock  Option  Plan to  increase  the  number  of  shares  available  for  grant
thereunder by 300,000 shares;

         (5) To ratify the  appointment  of Deloitte & Touche LLP as independent
auditors of the Company for the fiscal year ending December 31, 1996; and

         (6) To transact  such other  business as may  properly  come before the
meeting or any adjournment thereof.

         The foregoing  items of business are more fully  described in the Proxy
Statement accompanying this Notice.

         Only  stockholders  of record at the close of  business on May 15, 1996
are entitled to notice of and to vote at the Meeting.

         All stockholders are cordially invited to attend the Meeting in person.

                                    Sincerely,


                                    /s/ Susan D. Berry
                                    Susan D. Berry
                                    Secretary

Phoenix, Arizona
May 22, 1996

- --------------------------------------------------------------------------------
IMPORTANT:  It is  important  that your  stockholdings  be  represented  at this
meeting.  Whether or not you expect to attend the Meeting, please complete, date
and sign the  enclosed  Proxy and mail it promptly in the  enclosed  envelope to
assure  representation  of your shares.  No postage need be affixed if mailed in
the United States.
- --------------------------------------------------------------------------------
<PAGE>
                         ARIZONA INSTRUMENT CORPORATION
                              4114 East Wood Street
                             Phoenix, Arizona 85040


                                 PROXY STATEMENT

                         ANNUAL MEETING OF STOCKHOLDERS

                                  JUNE 27, 1996
                         -------------------------------



                SOLICITATION, EXECUTION AND REVOCATION OF PROXIES

         Proxies in the  accompanying  form are solicited on behalf,  and at the
direction,  of the Board of  Directors  of  Arizona  Instrument  Corporation,  a
Delaware  corporation  (the  "Company").  All  shares  represented  by  properly
executed  proxies,  unless such proxies have  previously  been revoked,  will be
voted in  accordance  with the  direction  on the  proxies.  If no  direction is
indicated,  the shares will be voted in favor of the  proposals to be acted upon
at the Annual  Meeting.  The Board of Directors is not aware of any other matter
which may come before the Annual  Meeting.  If any other  matters  are  properly
presented  at the  meeting for action,  including a question of  adjourning  the
Annual  Meeting from time to time,  the persons  named in the proxies and acting
thereunder will have discretion to vote on such matters in accordance with their
best judgment.

         When stock is in the name of more than one  person,  the proxy is valid
if signed by any of such persons unless the Company  receives  written notice to
the contrary. If the stockholder is a corporation, the proxy should be signed in
the name of such  corporation by an executive or other  authorized  officer.  If
signed as attorney, executor,  administrator,  trustee, guardian or in any other
representative  capacity,  the  signer's  full title should be given and, if not
previously  furnished,  a certificate or other evidence of appointment should be
furnished.

         This Proxy  Statement and the form of proxy which is enclosed are being
mailed to the Company's stockholders commencing on or about May 22, 1996.

         A  stockholder  executing and returning a proxy has the power to revoke
it at any time before it is voted.  A  stockholder  who wishes to revoke a proxy
can do so by  executing  a  later-dated  proxy  relating  to the same shares and
delivering  it to the  Secretary of the Company  prior to the vote at the Annual
Meeting,  by written notice of revocation received by the Secretary prior to the
vote at the Annual  Meeting  or by  appearing  in person at the Annual  Meeting,
filing a written  notice of revocation  and voting in person the shares to which
the proxy relates.

         In  addition  to the use of the  mails,  proxies  may be  solicited  by
personal  interview,  telephone  and  telegram by the  directors,  officers  and
regular  employees  of the Company.  Such  persons  will  receive no  additional
compensation  for such  services.  Arrangements  will also be made with  certain
brokerage firms and certain other  custodians,  nominees and fiduciaries for the
forwarding of  solicitation  materials to the beneficial  owners of Common Stock
held of record by such  persons,  and such  brokers,  custodians,  nominees  and
fiduciaries  will be  reimbursed  for their  reasonable  out-of-pocket  expenses
incurred in connection  therewith.  It is not anticipated that any other persons
will be engaged to solicit proxies. However, the Company may seek services of an
outside  proxy  solicitor  in the event  such  services  become  necessary.  All
expenses  incurred in  connection  with this  solicitation  will be borne by the
Company.

         The mailing address of the principal corporate office of the Company is
4114 East Wood Street, Phoenix, Arizona 85040.
<PAGE>
                 VOTING SECURITIES AND PRINCIPAL HOLDERS THEREOF

         Only  stockholders  of record at the close of  business on May 15, 1996
(the "Record Date") will be entitled to vote at the meeting. On the Record Date,
there were issued and outstanding  6,498,780 shares of Common Stock. Each holder
of Common Stock is entitled to one vote,  exercisable in person or by proxy, for
each share of the Company's  Common Stock held of record on the Record Date. The
presence of a majority of the shares of Common Stock entitled to vote, in person
or by proxy,  is required to  constitute a quorum for the conduct of business at
the Annual Meeting.  The two nominees for director  receiving the highest number
of affirmative votes (whether or not a majority) cast by the shares  represented
at the Annual  Meeting and entitled to vote  thereon,  a quorum  being  present,
shall be elected as directors. The affirmative vote of a majority of such quorum
is required  with respect to the approval of Proposals 2 through 5.  Abstentions
and broker  non-votes  are each included in the  determination  of the number of
shares  present  for  quorum  purposes.  Because  abstentions  represent  shares
entitled to vote,  the effect of an  abstention  will be the same as a vote cast
against a proposal,  except with respect to the election of directors, for which
only affirmative votes are relevant. A broker non-vote,  on the other hand, will
not be regarded as  representing  a share  entitled to vote on the proposal and,
accordingly, will have no effect on the voting for such proposal.

Security Ownership of Certain Beneficial Owners and Management

         As of May 13,  1996 the  following  table  sets  forth  the  beneficial
ownership of Common Stock of the Company by each  director and director  nominee
who owns shares,  by each  executive  officer named in the Summary  Compensation
Table set forth herein, by all directors and executive  officers as a group, and
by each person known by the Company to be the  beneficial  owner of more than 5%
of the Company's Common Stock:

                    Shares of Common Stock Beneficially Owned
                    -----------------------------------------


                                            Number                 Percent
Name and Address (1)                       of Shares               of Total
- --------------------                       ---------               --------

Walfred R. Raisanen (2)                    176,400                   2.6%

S. Thomas Emerson (2)                       35,000                    (3)

John P. Hudnall (2)                         29,521                    (3)

Quinn Johnson (2)                           62,001                    (3)

Richard Long (2)                            32,000                    (3)

Patricia Onderdonk (2)                      16,000                    (3)

Stanley Weiss (2)                           35,000                    (3)

All directors and executive                432,118                   6.2%
officers as a group (2) (4)
(11 persons)



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

(1)      Unless otherwise indicated, the beneficial owner's address is:
         c/o the Company, 4114 East Wood Street, Phoenix, Arizona 85040.
                                       -2-
<PAGE>
(2)      Includes  shares  issuable upon exercise of options which are currently
         exercisable  or become  exercisable  within 60 days of May 13,  1996 as
         applicable for each of the following individuals:

                           Raisanen                  20,000 shares
                           Long                      15,000 shares
                           Hudnall                   24,000 shares
                           Emerson                   15,000 shares
                           Onderdonk                 12,500 shares
                           Weiss                     10,000 shares

(3)      Less than one percent.

(4)      Includes  42,000 shares  issuable upon exercise of options (in addition
         to shares issuable upon exercise of options indicated in note 2).

                                   PROPOSAL 1

                              ELECTION OF DIRECTORS

         The Board of  Directors  currently  consists  of seven  members  and is
classified  into three classes with each class  holding  office for a three-year
period.  The terms of Mr.  Johnson and Mr.  Emerson expire in 1996; the terms of
Mr.  Hudnall and Mr.  Raisanen  expire in 1997;  and the terms of Mr. Long,  Ms.
Onderdonk, and Mr. Weiss expire in 1998.

         The  Certificate  of  Incorporation  restricts the removal of directors
under  certain  circumstances.  The number of  directors  may be  increased to a
maximum of 10.

         Two directors,  Messrs. Johnson and Emerson are to be re-elected at the
Meeting  for a  three-year  term  expiring  in 1999 or  until  their  respective
successors have been elected.  Unless  otherwise  instructed,  the proxy holders
will vote the proxies  received by them for Messrs.  Johnson and Emerson who are
the Company's  nominees.  In the event that any nominee of the Company is unable
or  declines  to serve as a  director  at the time of the  Annual  Meeting,  the
proxies  will be voted for any  nominee who shall be  designated  by the present
Board of Directors to fill the vacancy. It is not expected that any nominee will
be unable or will decline to serve as a director.

         Any  stockholder  entitled to vote for the  election of  directors at a
meeting may nominate persons for election as directors only if written notice of
such stockholder's  intent to make such nomination is given,  either by personal
delivery at 4114 East Wood Street,  Phoenix,  Arizona or by United  States mail,
postage prepaid to Secretary,  Arizona  Instrument  Corporation,  4114 East Wood
Street, Phoenix,  Arizona 85040 not later than: (i) with respect to the election
to be held at an annual  meeting  of  stockholders,  20 days in  advance of such
meeting,  and (ii) with respect to any election to be held at a special  meeting
of  stockholders  for the  election of  directors,  the close of business on the
tenth day  following  the date on which notice of such meeting is first given to
stockholders.  Each such notice must set forth:  (a) the name and address of the
stockholder  who intends to make the  nomination and of the person or persons to
be nominated;  (b) a representation  that such stockholder is a holder of record
of stock of the  corporation  entitled  to vote at such  meeting  and intends to
appear in person or by proxy at the  meeting to  nominate  the person or persons
specified in the notice; (c) a description of all arrangements or understandings
between  such  stockholder  and each  nominee  and any other  person or  persons
(naming such person or persons)  pursuant to which the nomination or nominations
are to be made by such stockholder;  (d) such other  information  regarding each
nominee  proposed by such stockholder as would have been required to be included
in a proxy  statement  filed  pursuant to the proxy rules of the  Securities and
Exchange  Commission  if such  nominee  had been  nominated,  or  intended to be
nominated,  by the Board of  Directors;  and (e) the consent of each  nominee to
serve as a director of the corporation if elected. The chairman of a stockholder
meeting  may  refuse to  acknowledge  the  nomination  of any person not made in
compliance with the foregoing procedure.
                                       -3-
<PAGE>
         The names of the directors and certain  information  about them are set
forth below.


Name                    Age   Principal Occupation                Director Since
- ----                    ---   --------------------                --------------



Walfred R. Raisanen     61    Chairman of the Board, Vice              1981
                              President-Research and
                              Development, and Treasurer of the
                              Company

S. Thomas Emerson       55    Chairman of Xantel Corporation           1989

John P. Hudnall         45    President and Chief Executive            1988
                              Officer of the Company

Quinn Johnson           51    President of Horizon Engineering         1992
                              and Testing, Inc., a wholly-owned
                              subsidiary of the Company

Richard Long            67    Marketing and Management                 1987
                              Consultant

Patricia Onderdonk      45    Vice President Marketing, Optical        1992
                              Disc Corporation

Stanley H. Weiss        53    Director and President Terrell,          1993
                              Weiss & Sugar, Ltd.




         Walfred R.  Raisanen  has been the  Chairman of the Board of  Directors
since the Company's  inception in January 1981.  From 1981 until 1986 he was the
President and Treasurer of the Company. Mr. Raisanen was re-elected Treasurer in
1991 and also serves as Vice  President of Research and  Development.  From June
1976 until  January  1981 he was  President  and a Director of Motorola  Process
Control, Inc., the predecessor to the Company.

         S. Thomas  Emerson,  Ph.D. has been Chairman of Xantel  Corporation,  a
private  company  engaged in computer  communications,  since August  1992.  Dr.
Emerson was Chief Executive Officer of Syntellect  Incorporated,  a manufacturer
of voice response systems, from 1984 to April 1992. Prior to founding Syntellect
in 1984, Dr. Emerson was a founder of  Periphonics  Corporation of Bohemia,  New
York where he served for 14 years in various executive capacities.

         John P. Hudnall came to the Company in 1985 as Chief Financial Officer.
He became President and Chief Executive  Officer in 1986 and a Director in 1988.
Mr.  Hudnall's  background  spans  22  years  in  industry,  with  positions  in
production,  sales, finance and systems, including a position as Chief Financial
Officer for Inter-Tel, Inc., an independent telephone company.

         Quinn Johnson became President of Horizon Engineering & Testing,  Inc.,
a wholly-owned subsidiary of the Company ("Horizon"), in September 1992 upon the
acquisition  by the  Company  of  Horizon's  predecessor.  Mr.  Johnson  founded
Horizon's  predecessor  in 1990.  Prior to forming  Horizon's  predecessor,  Mr.
Johnson  founded  and served  since 1983 as  president  of a company  engaged in
general construction, paving and civil engineering.  Previously, Mr. Johnson was
a  construction  manager for Northern  Industries of Eagar,  Arizona;  a project
manager for the U.S. Forest Service;  and a structural  engineer for Fluor Corp.
of Los Angeles, California.
                                       -4-
<PAGE>
         Richard  Long  has  been   involved  in  the  private   sector  of  the
telecommunications  industry for over 20 years.  He has been both  President and
Chairman  of the  trade  association  representing  suppliers,  contractors  and
manufacturers in the private sector and has acted as a spokesman before Congress
and regulatory bodies during that time.

         Patricia Onderdonk has been the Vice President of Marketing for Optical
Disc  Corporation  of Santa Fe Springs,  California  since  mid-1994,  a company
engaged in developing and manufacturing  high-density CD ROMs.  Previously,  she
co-founded  Onderdonk  & Haynes,  Inc. in 1986 and had become  President  of the
marketing  and  communication   consulting  firm  focused  on   technology-based
customers.   Ms.  Onderdonk's   background  spans  19  years  of  marketing  and
communications  experience  with  positions  in account and general  management,
including the position of Vice President and General  Manager for Regis McKenna,
Inc., a high-technology marketing and public relations firm.

         Stanley H. Weiss has been  president  and director of Terrell,  Weiss &
Sugar, Ltd., an accounting firm in Chicago,  Illinois, since September 1990. Mr.
Weiss served as the firm's secretary-treasurer from October 1981 until September
1990 and has been a principal of the firm since  December  1978. As a practicing
certified public  accountant since 1974, Mr. Weiss has been actively involved in
consulting  with  entrepreneurs  and  managers  in the  areas of  income  taxes,
business planning, financial controls and employee incentives.

Compliance With Section 16(a) Reporting Requirements

         Under  the  securities  laws  of  the  United  States,   the  Company's
directors,  its executive officers, and any persons holding more than 10% of the
Company's  Common Stock are required to report  their  initial  ownership of the
Company's  Common  Stock and any  subsequent  changes in that  ownership  to the
Securities  and Exchange  Commission.  Specific due dates for these reports have
been  established and the Company is required to disclose any failure to file by
these dates.  All of these filing  requirements  were satisfied  during the year
ended  December 31, 1995,  except Quinn Johnson  reported on a Form 4 dated July
14, 1995 a sale of securities on June 14, 1995 and Patricia  Onderdonk  reported
on a Form 4 dated April 25, 1996 a purchase of  securities on November 22, 1995.
Additionally,  the Company has not received copies of ownership reports due from
Bridge Capital Investors II, which formerly  beneficially owned greater than 10%
of the Company's outstanding Common Stock, and thus has no information regarding
whether  such  reports  have  been  filed or filed  on a timely  basis  with the
Commission.  In making  these  disclosures,  the  Company  has relied  solely on
written  representations  of its directors and executive  officers and copies of
the reports that they have filed with the Commission.

Board Meetings and Committees

         The Board of Directors held a total of four meetings  during the fiscal
year  ended  December  31,  1995.  No  director  attended  fewer than 75% of the
aggregate of all  meetings of the Board of  Directors or any  committee on which
such director served during the period of such service.

         The  Board   presently  has  an  Audit  Committee  and  a  Compensation
Committee.  The Audit Committee  currently  consists of Mr. Long and Mr. Emerson
and met one time in fiscal 1995. The Audit  Committee meets  independently  with
representatives of the Company's  independent  auditors and with representatives
of senior  management.  The Committee reviews the general scope of the Company's
annual  audit,  the fee charged by the  independent  auditors and other  matters
relating to internal  control  systems.  In  addition,  the Audit  Committee  is
responsible for reviewing and monitoring the  performance of non-audit  services
by the Company's  auditors.  The Committee is also  responsible for recommending
the engagement or discharge of the Company's independent auditors.

         The Compensation  Committee  currently consists of Messrs.  Emerson and
Long and Ms.  Onderdonk,  and met two times in  fiscal  1995.  The  Compensation
Committee  reviews and reports to the Board the  salaries  and benefit  programs
designed for senior  management,  officers and  directors  with a view to insure
that the Company
                                       -5-
<PAGE>
is attracting and retaining highly qualified managers through competitive salary
and benefit  programs and  encouraging  extraordinary  effort through  incentive
rewards.

         Nominations of persons to be directors are considered by the full Board
of Directors.


                       REMUNERATION OF EXECUTIVE OFFICERS

                           SUMMARY COMPENSATION TABLE

The following table sets forth compensation awarded to, earned by or paid to the
Company's  Chief  Executive  Officer and each of the Company's  other  executive
officers who were serving as an executive  officer at the end of fiscal 1995 and
whose salary and bonus aggregated at least $100,000 for services rendered to the
Company during fiscal 1995.
<TABLE>
<CAPTION>
                                                  Annual Compensation                Long-Term Compensation
                                            --------------------------------     -------------------------------

                                                                                                            Pay-
                                                                                                            ----
                                                                                        Awards              outs
                                                                                 ---------------------      ----

                                                                     Other       Re-        Securities
                                                                     Annual      stricted   Underlying      LTIP
                                                                     Compen-     Stock       Options/       Pay-     All Other
                                                                     sation      Awards        SARs         outs     Compen-
Name and Principal Position         Year     Salary($)     Bonus       ($)         (#)         (#)           ($)     sation($)
- -------------------------------     ----     ---------     -----     -------     --------   ---------       -----    ---------
<S>                                 <C>        <C>         <C>       <C>            <C>     <C>               <C>     <C>     
John P. Hudnall, CEO                1995       154,400       0       5,400(1)       0       120,000(2)        0       1,518(3)
                                    1994       153,226       0       5,400(1)       0            0            0       1,425(3)
                                    1993       143,000       0       5,400(1)       0        95,480(4)        0       1,354(3)
                                        
Walfred Raisanen, Chairman          1995       147,262       0          0           0       100,000(2)        0       3,771(3)
                                    1994       135,009     26,460       0           0            0            0       3,329(3)
                                    1993       124,000       0          0           0        35,480(4)        0       2,974(3)
                                        
Quinn Johnson, President            1995       127,561       0          0           0        60,000(2)        0       2,869(3)
Horizon Engineering &               1994       129,190       0          0           0            0            0       2,721(3)
Testing                             1993       129,029     15,427       0           0        11,480(4)        0       2,606(3)
</TABLE>

(1)      Automobile allowance.

(2)      No SARs were granted.  Represents 24,520,  52,760 and 48,520 new option
         grants to Messrs.  Hudnall,  Raisanen  and Johnson,  respectively.  All
         remaining  options  shown in this table as  granted  in 1995  represent
         repricing of options granted in prior years.

(3)      Life insurance premium payments.

(4)      No SARs were  granted.  All  options  shown in this table as granted in
         1993 represent the repricing of options granted in prior years.
                                       -6-
<PAGE>
                    OPTION/SAR GRANTS IN LAST FISCAL YEAR (1)

         The following  table sets forth  information  about stock option grants
during the last  fiscal  year to the  executive  officers  named in the  Summary
Compensation Table.
<TABLE>
<CAPTION>
                                                      Individual Grants
                        -----------------------------------------------------------------------
                          Number of          % of Total
                          Securities         Option/SARs
                          Underlying           Granted
                         Options/SARs       to Employees in    Exercise or Base     Expiration
     Name                 Granted (#)         Fiscal Year        Pricing ($/Sh)         Date
- -------------------       -----------         -----------        --------------     -----------
<S>                        <C>                  <C>                <C>               <C>     
John P. Hudnall            120,000(2)           18.0%              $ .92             5/5/2005

Walfred R. Raisanen        100,000(2)           15.0%              $ .92             5/5/2005

Quinn Johnson               60,000(2)            9.0%              $ .92             5/5/2005

</TABLE>

(1)      No SARs are outstanding.

(2)      Vest in five equal annual installments beginning May 5, 1996.


                 AGGREGATED OPTION EXERCISES IN LAST FISCAL YEAR
                     AND FISCAL YEAR-END OPTION VALUE TABLE

         The  following  table  sets  forth  information  with  respect  to  the
executive officers named in the Summary Compensation Table concerning the number
and value of options outstanding at the end of the last fiscal year. None of the
executive  officers named in the Summary  Compensation  Table exercised  options
during the last fiscal year.
<TABLE>
<CAPTION>
                                                                Value of Unexercised in-the-
                                Number of Unexercised               Money Options/SARs at
                              Options/SARs at FY-End(1)                FY End ($)(2)
                           -----------------------------       -------------------------------

       Name                Exercisable     Unexercisable       Exercisable       Unexercisable
- -----------------          -----------     -------------       -----------       -------------
<S>                             <C>           <C>                  <C>              <C>    
John P. Hudnall                 0             120,000              0                129,600

Walfred Raisanen                0             100,000              0                108,000

Quinn Johnson                   0              60,000              0                 64,800

</TABLE>

(1)      No SARs are outstanding.
(2)      Effective May 5, 1995,  the  exercise price of all employee options was
         reduced to $.92 per share.
                                       -7-
<PAGE>
Employment/Change of Control Arrangements

         Effective  November  5, 1992,  the  Company  entered  into a  five-year
employment  agreement  with Walfred R. Raisanen  pursuant to which Mr.  Raisanen
agreed to serve as Vice President of Research and  Development for a base annual
salary  of  $120,000,  which  is  to be  adjusted  annually  for  cost-of-living
increases.  Mr.  Raisanen  is  also  entitled  to  participate  in  any  benefit
arrangements available to executive officers of the Company. Upon termination of
the employment  agreement by the Company without cause, Mr. Raisanen is entitled
to receive a cash payment equal to the  compensation due him over the balance of
the term of the employment  agreement,  and to participate in applicable benefit
programs for the balance of the term of the employment agreement.

         Effective  June  3,  1993,  the  Company   entered  into  a  three-year
employment  agreement with its President and Chief  Executive  Officer,  John P.
Hudnall.  The agreement provides for a base annual salary of $143,000,  which is
to be  adjusted  annually  for  cost-of-living  increases.  Mr.  Hudnall is also
entitled to  participate  in any benefit  arrangements  available  to  executive
officers of the Company.  Upon  termination of the  employment  agreement by the
Company without cause, Mr. Hudnall is entitled to receive an amount equal to the
compensation  due him over the balance of the term of the employment  agreement,
and to participate in applicable benefit programs for the balance of the term of
the employment agreement.

         For information regarding the employment agreement of Quinn Johnson, an
executive officer of a subsidiary of the Company, see "Certain Transactions."

         The Company's  1991 Option Plan  provides  that options  granted to any
executive officer or director of the Company will become immediately exercisable
and vested in full upon the occurrence,  before the expiration or termination of
such option,  of (a) delivery of written  notice of a  stockholders'  meeting at
which the stockholders will consider a proposed merger,  sale of assets or other
reorganization  of the Company,  (b) the acquisition by any person of securities
representing  25% or more of the total  number of votes  entitled to be case for
the election of directors of the Company, (c) commencement of a tender offer for
the stock of the Company,  or (d) failure,  at any annual or special  meeting of
stockholders  following an election contest,  of any of the persons nominated by
the Company to win election seats on the board of directors.

         The  Company's  1991 Option Plan further  provides  that subject to the
above  provisions,  in the event a merger  or  similar  reorganization  that the
Company does not survive,  a sale of all or  substantially  all of the assets of
the Company,  or the  dissolution  and  liquidation of the Company,  shall cause
every option outstanding under the 1991 Option Plan to terminate,  to the extent
not then  exercised,  except to the extent that any  surviving  entity agrees to
assume the 1991 Option Plan and/or the obligations under any such option.

Compensation of Directors

         Outside  directors are currently paid $1,000 plus expenses per Board or
committee meeting attended. Pursuant to the 1991 Stock Option Plan, non-employee
directors are automatically  granted options exercisable for 2,500 shares at the
market  price on the date of grant upon  joining the Board and on each January 1
thereafter. The options become exercisable six months after grant and expire two
years after  termination of Board service.  Directors who are employees are only
paid their expenses (if any) for attendance at meetings.

Report  of Compensation  Committee of the Board of Directors Regarding Repricing
of Stock Options

         Effective May 5, 1995, the exercise prices of substantially all options
outstanding  under the Company's various stock option plans were reduced to $.92
per share by action of the Compensation Committee of the Board of Directors (the
"Compensation  Committee"),  which exercise price equalled the fair market value
of the  Common  Stock as of the date of  repricing.  Exercise  prices of options
prior to the  repricing  ranged from $1.75 to $2.44.  Repricing was not effected
with  respect to stock  options  held by  non-employee  directors of the Company
(including
                                       -8-
<PAGE>
each member of the Compensation Committee),  who are eligible to receive options
only  pursuant to a formula grant  provision in the Company's  1991 Stock Option
Plan.

         The  Compensation   Committee   believes  that  stock  options  provide
substantial incentives to optionees and play a key role in the Company's ability
to recruit and retain executives and key employees.  The Compensation  Committee
further believes that equity-based  incentive  programs,  such as stock options,
help created a tight link between the  interests of the  Company's  stockholders
and  employees.   The   Compensation   Committee   further   believes  that  the
effectiveness  of  stock  options  as a  motivational  device  is  substantially
diminished in situations where the prevailing market prices for the Common Stock
are significantly less than the exercise prices of the outstanding options.

         In 1995, the Compensation  Committee  reviewed the effectiveness of the
Company's  stock option  program in light of the above factors and the disparity
between the exercise  prices of outstanding  options and the  prevailing  market
prices of the Company's Common Stock. The Compensation  Committee also took into
account the factor that stock option programs  appropriately  include an element
of risk for optionees,  and that the mitigation of risk resulting from repricing
outstanding  options could have a negative effect upon the incentives created by
the outstanding stock options.  In light of the above factors,  the Compensation
Committee  determined  that it was  desirable  and in the best  interests of the
Company to effect the repricing described herein.

Certain Transactions

         Bridge  Agreements.  On July  6,  1989,  the  Company  entered  into an
agreement (the "Note Agreement") with Bridge Capital Investors II ("Bridge II").
Pursuant to the Note Agreement as amended through  September 2, 1992,  Bridge II
held 12% convertible  subordinated  notes in the principal  amount of $3,000,000
with a maturity  date of June 30,  1996 and a warrant to  purchase up to 115,000
shares of the Company's Common Stock at an exercise price of $1.00 per share. As
a result of common stock issued in conjunction  with the  acquisition of Horizon
on September 30, 1992 and related  financing and other  transactions,  the notes
became  convertible  into 847,937 shares of common stock at $3.54 per share. The
Note Agreement  further provided that the Company would have the right to prepay
the notes at any time if prepayment were accompanied by the issuance of warrants
to purchase Common Stock at the rate of 200,000  warrants for each $1,000,000 of
principal which is prepaid.

         In November 1995, the Company prepaid the remaining  principal  balance
of the notes payable to Bridge II. In connection with the prepayment,  Bridge II
waived all rights to receive any  additional  warrants  under its loan agreement
with the  Company.  The Company had also made a scheduled  principal  payment of
$375,000 on April 30, 1995 and a $616,667 principal payment on October 31, 1995.

         Merger  Agreement.  On September  30,  1992,  Horizon  Engineering  and
Testing,  Inc. was merged (the "Merger")  into a wholly-owned  subsidiary of the
Company   pursuant  to  an  Agreement   of  Merger  (the  "Merger   Agreement").
Shareholders of Horizon  received cash  consideration  of $190,000 and shares of
the Company's Common Stock.  Quinn Johnson held 90% of the outstanding  stock of
Horizon at the time of the Merger and received 529,328 shares of Common Stock in
connection  with the Merger.  The Company  agreed to register  the shares of the
Company's  Common Stock issued pursuant to the Merger Agreement under applicable
federal  and  state  securities  laws at any time  after  April 1, 1993 upon the
request of holders of 25% of such shares and to keep such registration effective
through  September 30, 1995. Mr. Johnson has agreed to indemnify Horizon and the
Company against certain liabilities in connection with the Company's acquisition
of Horizon, and has placed 49,030 shares of the Company's Common Stock in escrow
in connection therewith.

         Non-competition  Agreement.  Pursuant  to a  Non-Competition  Agreement
dated  September 30, 1993, and in  consideration  of a cash payment of $350,000,
Mr.  Johnson  agreed to refrain from  competing  with Horizon until the later of
September 30, 1998 or two years after leaving the employment of Horizon, subject
to earlier termination under certain circumstances.
                                       -9-
<PAGE>
         Employment  Agreement.  Mr.  Johnson  serves as  President  of  Horizon
pursuant to an Employment  Agreement  dated  September 30, 1992.  The Employment
Agreement  provides for a base salary of $125,000 over its four-year  term, with
annual adjustments tied to increases in the Consumer Price Index. The Employment
Agreement also provides for an annual bonus equal to (i) 15% of Horizon's pretax
profit (as defined)  with  respect to pretax  profit  representing  up to 15% of
Horizon's  gross  revenues;  and (ii) 20% of  Horizon's  pretax  profit  on that
portion of the pretax profit in excess of 15% of gross revenues,  with a maximum
bonus  over  the  term  of the  four-year  agreement  equal  to  $700,000.  Upon
termination  of the  Employment  Agreement  by the Company  without  cause,  Mr.
Johnson is entitled to receive (i) the  difference  between  $700,000  and bonus
payments prior to termination;  plus (ii) an amount equal to the then-applicable
annual base salary.

         Stock Registration. Pursuant to registration rights previously granted,
the  Company  filed a shelf  registration  statement  with  the  Securities  and
Exchange  Commission  ("SEC")  relating to 3,781,003  shares of its Common Stock
issued in connection with private placements in September 1992 and November 1993
and in  connection  with the  acquisition  of Horizon in  September  1992.  Also
included in the  registration  are 209,000  shares of Common Stock issuable upon
the exercise of warrants issued to Cruttenden & Co., Inc. ("Cruttenden") and its
assignees in connection with Cruttenden's  activities as placement agent for the
November  1993  private  placement.  The  registration  statement  was  declared
effective  by the SEC in  February  1994.  The  Company  has agreed that it will
maintain the  effectiveness  of the  registration  statement (i) until  November
1996, with respect to the shares issued in the November 1993 private  placement;
(ii) until  September  1995,  with respect to the shares issued in the September
1992 private  placement and the Horizon  acquisition;  and (iii) until two years
after  exercise,  with respect to shares  issuable upon exercise of the warrants
referred to above.  The  registration  statement as  originally  filed  included
465,001 shares  beneficially  owned by Quinn  Johnson,  a director and executive
officer of the Company,  which shares were acquired by Mr. Johnson in connection
with the  acquisition of Horizon by the Company in September 1992. In connection
with the registration, Mr. Johnson agreed that his registered and other sales of
the Company's Common Stock shall not exceed the volume  limitations set forth in
Rule 144 under the  Securities  Act of 1933,  as  amended,  subject  to  certain
exceptions.  The  registration  statement also includes 20,000 shares and 20,000
shares  beneficially owned by S. Thomas Emerson and Stanley Weiss,  directors of
the Company,  which shares were acquired in the November 1993 private placement.
The  Company  and the  holders of the  shares of Common  Stock  included  in the
registration have agreed to indemnify each other against certain liabilities.

         Other.  During September 1993, the Company loaned $45,000 to Walfred R.
Raisanen,  a  director  and  executive  officer of the  Company.  The loan bears
interest at 10% per annum, is  collateralized  by 15,000 shares of the Company's
Common Stock and $30,000 of the cash value of a life insurance  policy  covering
Mr. Raisanen, and is due August 1996.


                                   PROPOSAL 2

                    AMENDMENT TO EMPLOYEE STOCK PURCHASE PLAN
                      INCREASING SHARES AVAILABLE FOR GRANT
                                BY 200,000 SHARES

         The  Company's  Employee  Stock  Purchase  Plan  ("Purchase  Plan") was
adopted by the Board of  Directors  and  approved by the  stockholders  in 1985.
Prior to the adoption of the amendment  discussed  below,  all 200,000 shares of
Common Stock that had been  reserved for issuance  under the Purchase  Plan have
been so issued.  On May 3, 1996,  the Board of  Directors  amended the  Purchase
Plan,  subject to  stockholder  approval,  to increase  the shares  reserved for
issuance from 200,000 shares to 400,000 shares.  Accordingly, if this Proposal 2
is  approved  by the  Company's  stockholders,  as of May 13,  1996,  a total of
200,000  shares of Common Stock were  available  for future  issuance  under the
Purchase Plan.
                                      -10-
<PAGE>
Summary of Plan

         The summary of the Purchase  Plan  included in this Proxy  Statement is
qualified in its entirety by the specific  language of the Purchase Plan. Copies
of the Purchase Plan are available to any  stockholder  upon request to Investor
Relations,  Arizona  Instrument  Corporation,  4414 East Wood  Street,  Phoenix,
Arizona 85040.

         Purpose.  The purpose of the Purchase  Plan is to provide the employees
of the Company and its subsidiaries with an opportunity to purchase Common Stock
of the Company  through  payroll  deductions.  The Purchase  Plan is intended to
qualify as an Employee  Stock  Purchase  Plan under  Section 423 of the Internal
Revenue Code (the "Code").

         Administration. The Purchase Plan is to be administered by the Board of
the  Company  or  a  committee   appointed  by  the  Board.   All  questions  of
interpretation  or  application of the Purchase Plan are determined by the Board
or its committee and its decisions are final and binding upon all  participants.
Members of the Board or committee  who are eligible  employees  are permitted to
participate in the Purchase Plan.  Members of the Board or its committee receive
no  additional   compensation   for  their  services  in  connection   with  the
administration of the Purchase Plan.

         Eligibility.   Participation   in  the  Purchase   Plan  is  completely
voluntary. Any person, excluding senior officers, who is employed by the Company
for at least 20 hours per week and has been so  employed  for at least 12 months
continuously by the Company or one of its designated subsidiaries is eligible to
participate in the Purchase  Plan. See Proposal 3 below,  which would delete the
exclusion  for senior  officers and permit their  participation  in the Purchase
Plan.  No employee is to be granted an option  under the  Purchase  Plan (i) if,
immediately   after  the  grant,  such  employee  would  own  shares  (including
outstanding  options to  purchase) of stock  possessing  5% or more of the total
combined voting power or value of all classes of shares of the Company or of any
parent or subsidiary of the Company,  or (ii) which permits his or her rights to
purchase  shares under all employee  stock purchase plans of the Company and its
parent or  subsidiaries  to accrue at a rate which  exceeds  $25,000 of the fair
market value of the shares  (determined  at the time such option is granted) for
each calendar year in which such stock option is outstanding at any time.

         Offering Dates. The Purchase Plan is implemented by one offering during
each six-month period of the Plan. The offering periods will generally  commence
on January 1 and July 1 of each year.

         Participation   in  the  Purchase  Plan.   Eligible   employees  become
participants in the Purchase Plan by delivering a subscription  agreement to the
Company's  payroll  office  prior  to  the  applicable  offering  date.  Payroll
deductions  for a participant  will commence on the first payroll  following the
offering date and will end on the termination  date of the offering to which the
subscription   agreement  is  applicable,   unless  sooner   terminated  by  the
participant as provided in the Purchase Plan. See "Withdrawal  from the Purchase
Plan." An employee who becomes  eligible to  participate  in the  Purchase  Plan
after the  commencement  of an offering must wait until the  commencement of the
next  offering.  Payment under all offerings will be by payroll  deduction.  The
subscription  agreement  will  indicate  the  percentage  of  the  participant's
compensation  which  will be  withheld  during the  offering  period and used to
exercise  the  purchase  option.   The  percentage  may  not  exceed  10%  of  a
participant's  compensation  on any payday and the  aggregate of such  projected
payroll  deductions  during  the  offering  period  may  not  exceed  10% of the
aggregate  projected  compensation  for the offering  period.  A participant may
lower, but not increase,  the rate of payroll  deductions during the offering by
delivering to the Company a new subscription agreement.  The change in rate will
be  effective  within  15  days  following  the  Company's  receipt  of the  new
agreement.  By executing a subscription  agreement,  the participant is given an
option which may or may not be exercised  during the six-month  offering period.
The participant  does not become  obligated to make the stock purchase;  rather,
the  subscription  agreement is merely an election by the  participant  to place
shares under option.
                                      -11-
<PAGE>
         Purchase Price.  The purchase price per share at which shares of Common
Stock are sold in an offering under the Purchase Plan is 85% of the lower of the
fair  market  value of a share of Common  Stock at the  beginning  or end of the
offering period. The fair market value of the Common Stock on a given date shall
be the mean of the reported bid and asked prices for that date.

         Exercise of Option and Purchase of Stock.  By executing a  subscription
agreement to participate in an offering under the Purchase Plan, the employee is
granted an option to purchase as many full shares of Common Stock as he would be
able to buy with payroll deductions  credited to his account during the offering
period at the  purchase  price  described  under  "Purchase  Price."  Unless the
employee's  participation  is discontinued  (see  "Withdrawal  from the Purchase
Plan"), his option for the purchase of shares will be exercised automatically at
the end of the offering  period at the applicable  price.  Any cash remaining to
the credit of a  participant  in his  account  under the  Purchase  Plan after a
purchase  of shares at the  termination  of each  offering  period,  or which is
insufficient to purchase a full share of Common Stock,  shall be returned to the
participant without interest.

         Use of Funds.  All payroll  deductions  received or held by the Company
under the Purchase Plan may be used by the Company for any corporate purpose.

         Withdrawal  from the Purchase  Plan.  The  participant's  interest in a
given offering may be terminated in whole, but not in part, by delivering to the
Company a notice of withdrawal  from the Purchase Plan.  Such  withdrawal may be
elected  at any  time  prior  to the end of the  applicable  six-month  offering
period.  In such event,  the payroll  deductions  credited to the  participant's
account will be returned to such participant,  without interest. A participant's
withdrawal from an offering has no effect upon such participant's eligibility to
participate  in subsequent  offerings  under the Purchase Plan. If a participant
fails to remain  customarily  employed  by the Company for at least 20 hours per
week during the offering period in which the employee is a participant, he shall
be deemed to have  elected to withdraw  from the  Purchase  Plan and the payroll
deductions  credited  to his  account  shall be  returned  to him and his option
terminated.

         Termination of Employment.  Termination of a  participant's  employment
for  any  reason,   including  retirement  or  death,  immediately  cancels  his
participation  in the  Purchase  Plan.  In such event,  the  payroll  deductions
credited to the participant's  account will be returned,  without  interest,  to
such  participant  or, in the case of death,  to the person or persons  entitled
thereto as specified by the employee. See "Designation of Beneficiary."

         Stock Subject to Option.  The maximum  number of shares of Common Stock
which will be made  available for sale under the Purchase Plan is 200,000 shares
plus the  200,000  shares now  proposed  for  stockholder  approval,  subject to
adjustment on changes in capitalization of the Company.  See "Capital  Changes."
If the total  number of shares  which  would  otherwise  be  subject  to options
granted under the Purchase Plan at the beginning of an offering  period  exceeds
the number of shares then available under the Purchase Plan (after  deduction of
all shares for which options have been exercised or are then  outstanding),  the
Company will allocate  options for shares  remaining  available for option grant
pro rata among the  participants.  In such event,  the Company will give written
notice of such  reduction of the number of shares  subject to the option to each
participant  affected  thereby  and will  similarly  reduce  the rate of payroll
deductions, if necessary.

         Capital Changes.  In the event of any changes in the  capitalization of
the    Company,    such    as    mergers,    consolidations,    reorganizations,
recapitalizations, stock splits or stock dividends, appropriate adjustments will
be made by the  Company  in the  number of shares of  Common  Stock  subject  to
purchase under the Purchase Plan and in the purchase price per share.

         Designation of  Beneficiary.  A participant may file with the Company a
written  designation  of a  beneficiary  who is to receive any shares or cash or
both to which the  participant  may be entitled  under the Purchase  Plan at the
time of his  death.  Such  designation  of  beneficiary  may be  changed  by the
participant at any time by written notice.
                                      -12-
<PAGE>
         Nonassignability.    Neither   payroll   deductions   credited   to   a
participant's  account nor any rights of a  participant  under the Purchase Plan
may be pledged,  assigned or transferred for any reason except by will, the laws
of descent and  distribution or by designation of beneficiary.  See "Designation
of  Beneficiary."  Any attempt at such  pledge,  assignment  or transfer  may be
treated by the Company as an election to withdraw from the Purchase Plan.

         Reports. Individual accounts will be maintained for each participant in
the  Purchase  Plan.  Statements  of  account  will be  given  to  participating
employees  semi-annually  promptly  following the stock  purchase date, and such
statements  will set  forth  the  amount of  payroll  deductions,  the per share
purchase price,  the number of shares  purchased and the remaining cash balance,
if any.

         Amendment  or  Termination.  The  Board  of  Directors  may at any time
terminate or amend the Plan, subject to the following provisions.  The Board has
the power to  change  the  duration  of  offering  periods  without  stockholder
approval,  if such change is announced  at least 15 days prior to the  scheduled
beginning of the first offering  period to be affected and if no offering period
is to be longer than 27 months.  No termination  may affect  options  previously
granted and no  amendment  may make any change in any option  granted  under the
Purchase  Plan  which  adversely  affects  the  rights  of any  participant.  No
amendment may be made without prior approval of the  stockholders of the Company
if such amendment  would increase the number of shares which may be issued under
the Purchase Plan,  permit payroll  deductions at a rate in excess of 10% of the
participant's compensation, materially modify the requirements as to eligibility
for participation in the Purchase Plan or materially increase the benefits which
may accrue to participants under the Purchase Plan.

Certain Federal Income Tax Consequences

         The  Purchase  Plan is  intended  to  qualify  as an  Employees'  Stock
Purchase Plan under Section 423 of the Code. Accordingly, a participant will not
recognize  taxable  income at the time Shares are  acquired  under the  Purchase
Plan. If the participant  disposes of the Shares within two years after the date
the option is granted,  the employee must recognize  compensation  income in the
year of disposition equal to the difference between the fair market value of the
Shares on the date of acquisition and the purchase price. The difference between
the amount received upon disposition and the  participant's  basis in the Shares
(the  amount paid for the Shares  plus the amount  included  in gross  income as
compensation)  will be treated  as a capital  gain or loss.  If the  participant
disposes of the Shares more than two years after the date the option is granted,
the participant  must recognize  compensation  income in the year of disposition
equal to the lesser of (i) the excess of the fair  market  value of the stock at
the time of  disposition  over the purchase price or (ii) the excess of the fair
market value of the stock at the time of option  grant over the purchase  price.
The  difference   between  the  amount   received  upon   disposition   and  the
participant's  basis in the Shares  (the sum of the  amount  paid for the Shares
plus the amount  included in gross  income as  compensation)  will be treated as
long-term capital gain or loss.

         The Company is generally  not  entitled to a deduction  with respect to
Shares  purchased  under a Section 423 plan.  The Company  will be entitled to a
corresponding  deduction,  however,  if an employee disposes of the stock before
the expiration of the two year holding period described above. In such case, the
Company  will be  entitled to a  deduction  equal to the amount of  compensation
income recognized by the participant.

         This  summary  description  is  based  upon  the  presently  applicable
provisions  of the Code and is  subject  to  change  in the event of a change in
either the Code or  interpretations  thereof.  Each Purchase Plan participant is
urged  to  consult  his  personal  tax  advisor  as to the  tax  effects  in his
individual  situation of his  participation in the Purchase Plan,  including the
effects under state income tax or other tax laws which may be applicable.

Valuation

         As of May 10, 1996,  the last sale price of the Company's  Common Stock
as reported on the Nasdaq Stock Market was $3.00 per share.
                                      -13-
<PAGE>
Stock Purchases

         As of May 13, 1996,  options to purchase a total of 200,000 shares have
been granted to employees of the Company and have been  automatically  exercised
pursuant  to the  Purchase  Plan.  No  individual  employee  of the  Company has
received or is to receive  grants of 5% or more of such  options.  Directors and
executive  officers  currently are not eligible to  participate  in the Purchase
Plan. See Proposal 3 below.

Recommendation

         The Board of Directors  unanimously  recommends  that the  stockholders
vote FOR  approval of this  proposal to increase  the number of shares of Common
Stock available under the Purchase Plan.


                                   PROPOSAL 3

                    AMENDMENT TO EMPLOYEE STOCK PURCHASE PLAN
                   TO PERMIT PARTICIPATION BY SENIOR OFFICERS

         The Purchase Plan is summarized in Proposal 2 above. The summary of the
Purchase Plan included in Proposal 2 of this Proxy Statement is qualified in its
entirety by the specific  language of the Purchase Plan.  Copies of the Purchase
Plan are  available  to any  stockholder  upon  request to  Investor  Relations,
Arizona Instrument Corporation, 4414 East Wood Street, Phoenix, Arizona 85040.

         On May 3, 1996,  the Board of  Directors  amended  the  Purchase  Plan,
subject to  stockholder  approval,  to expand the  eligibility  requirements  to
permit the Company's senior officers (including  directors who are employees) to
participate  in the Purchase Plan. The Company  believes that  participation  of
senior officers in the Purchase Plan will help ensure a tighter link between the
interests  of its  stockholders  and the senior  officers  and will  enhance the
Company's ability to continue recruiting and retaining top talent.

Description of Amendment

         The amendment  would  eliminate  the exclusion of senior  officers from
eligibility  to  participate  in the Purchase  Plan.  Senior  officers  would be
subject to the same participation  requirements as other eligible  employees:  a
senior  officer  must be  employed by the Company for at least 20 hours per week
and have been so employed for at least 12 months  continuously by the Company or
one of its designated subsidiaries to be eligible to participate in the Purchase
Plan.

         Unlike other  participants  in the Purchase  Plan, a senior officer who
acquires shares of the Company's Common stock pursuant to the Purchase Plan must
hold the  stock  for six  months.  Additionally,  a senior  officer  who  ceases
participation  in the Purchase Plan may not  participate  again for at least six
months.

Recommendation

         The Board of Directors  unanimously  recommends  that the  stockholders
vote FOR approval of this  proposal to permit the Company's  senior  officers to
participate in the Purchase Plan.
                                      -14-
<PAGE>
                                   PROPOSAL 4

                 APPROVAL OF AN AMENDMENT OF THE COMPANY'S 1991
             STOCK OPTION PLAN INCREASING SHARES AVAILABLE FOR GRANT
                          THEREUNDER BY 300,000 SHARES

         The Arizona Instrument  Corporation 1991 Option Plan was adopted by the
Board of Directors in April 1991 and was approved by the Company's  stockholders
on June 28, 1991.  The 1991 Option Plan  provides for the grant of options which
qualify as "incentive  stock options" under Section 422 of the Internal  Revenue
Code (the  "Code") and  nonstatutory  stock  options  which do not  specifically
qualify for favorable income tax treatment under the Code.

         Stock  options  play a key role in the  Company's  ability to  recruit,
reward and retain executives and key employees. The Company believes that equity
based  incentive  programs help insure a tight link between the interests of its
stockholders  and  employees  and  enhance  the  Company's  ability to  continue
recruiting  and  retaining top talent.  The Company  believes that the continued
operation  of the  1991  Option  Plan in light of the  Company's  recent  growth
necessitates an increase in the shares available for grant under the 1991 Option
Plan.

         On May 3, 1996,  the Board of  Directors  amended  the 1991 Option Plan
subject to stockholder  approval to increase the shares reserved for issuance by
300,000 shares. As described below, the 1991 Option Plan originally provided for
450,000  shares to be reserved for issuance and further  provided that each year
the aggregate  number of shares of stock that may be issued pursuant to exercise
of  nonqualified  stock options (but not incentive stock options) under the 1991
Option Plan shall automatically  increase annually on January 1 by the number of
shares equal to 1% of the  outstanding  common shares on such date and shall not
thereafter  decrease  except by  specific  action  of the  Board,  with  certain
limitations.  Operation  of this  provision  has  resulted in an increase in the
shares  available  for issuance  from 450,000 to 698,356.  Accordingly,  if this
Proposal 4 to increase shares  available for grant under the 1991 Option Plan by
300,000  shares is approved by the Company's  stockholders,  as of May 13, 1996,
the total  number of shares  available  for grant  under the 1991  Option  Plan,
taking into account the automatic formula, will be 431,933 shares.

Summary of 1991 Option Plan

         The summary of the 1991 Option Plan included in this Proxy Statement is
qualified  in its  entirety by the  specific  language of the 1991 Option  Plan.
Copies of the 1991 Option Plan are  available  to any  stockholder  upon request
addressed to Arizona  Instrument  Corporation,  4114 East Wood Street,  Phoenix,
Arizona 85040, Attention:
Stockholder Relations.

Purpose

         The purposes of the 1991 Option Plan are to attract and retain the best
available  employees,  directors  and third  parties  who can  provide  valuable
services  for the Company or any parent,  subsidiary  or  affiliate,  to provide
additional  incentive  to  such  persons,  and to  promote  the  success  of the
Company's business.

Eligibility

         Any  employee or director of the Company or any parent,  subsidiary  or
affiliate is eligible to receive  options  under the 1991 Option Plan,  provided
that incentive  stock options may only be granted to employees of the Company or
any parent or subsidiary of the Company.  Nonstatutory options may be granted to
other  persons  who  are  not  officers,   directors  or  employee,   but  whose
participation is deemed to be in the Company's best interest.
                                      -15-
<PAGE>
Stock Subject to the 1991 Option Plan

         The  aggregate  number of shares  which may be issued  pursuant  to the
exercise of options  granted under the 1991 Option Plan is 450,000 shares of the
Company's voting common stock, subject to adjustments in certain  circumstances,
including stock dividends,  stock splits, reverse stock splits,  reorganizations
and recapitalizations. Additionally, each year the aggregate number of shares of
stock that may be issued pursuant to exercise of nonqualified stock options (but
not  incentive  stock  options)  under the 1991 Option Plan shall  automatically
increase  annually  on  January 1 by the  number  of  shares  equal to 1% of the
outstanding common shares on such date and shall not thereafter  decrease except
by specific action of the Board; provided, however, that the aggregate number of
shares available for issuance pursuant to the 1991 Option Plan, minus the number
of shares that are subject to outstanding  options and the number of shares that
have been purchased upon exercise of options,  shall not exceed on any January 1
over 10% of the  outstanding  common  shares.  Operation of this  provision  has
resulted in an increase in the  aggregate  number of shares  which may be issued
pursuant  to the  exercise  of options  granted  under the 1991 Option Plan from
450,000  shares to 698,356 shares of the Company's  voting common stock.  If any
outstanding option grant under the 1991 Option Plan for any reason expires or is
terminated,  the shares of common stock allocable to the unexercised  portion of
the option grant shall again be available for options under the 1991 Option Plan
as if no options had been granted with respect to such shares.

Administration of the 1991 Option Plan

         The  1991  Option  Plan  will  be  administered  by  a  committee  (the
"Committee") of directors appointed by the Board and constituted so as to permit
the 1991  Option  Plan to  qualify  under Rule 16b-3  ("Rule  16b-3")  under the
Securities  Exchange Act of 1934. The Committee will determine  those persons to
whom stock  options will be granted,  the terms of such grants and the number of
shares subject to options.

Terms and Conditions of Options

         Incentive  stock options  granted under the 1991 Option Plan may have a
maximum term of 10 years (five years in the case of options  granted to a holder
of more than 10% of the Company's  stock) and other stock options  granted under
the 1991 Option Plan may have a maximum exercise term of 20 years. The per-share
exercise  price of incentive  stock options may not be less than the fair market
value of Common  Stock (110% of the fair market value in the case of a holder of
more than 10% of the Company's  stock) on the date of grant.  The exercise price
of nonstatutory  options shall be as determined by the Committee but in no event
less than the par value.  To the extent required by the Code, no employee may be
granted  incentive  stock  options  in any  calendar  year  for  shares  with an
aggregate  fair market  value in excess of $100,000  plus the maximum  carryover
amount  determined  under Section 422 of the Code.  Options are not transferable
except upon death,  and can be exercised  during the  optionee's  lifetime  only
while  an  optionee  is  providing  services  for  the  Company  or any  parent,
subsidiary or affiliate,  except that an option may be exercised  within certain
periods of time after  termination of employment other than for cause and in the
event of retirement, death or permanent disability.

         Payment of the  exercise  price may be made in cash or, if permitted by
the grant, by  transferring to the Company shares of the Company's  Common Stock
at  fair  market  value  on the  date  of  exercise.  At the  discretion  of the
Committee, the Company may extend credit to finance option exercises. Subject to
certain  limitations,  the  Committee  may modify,  extend or renew  outstanding
options,  reduce  the  exercise  price  of  options,  accept  the  surrender  of
outstanding options and grant new options in substitution.  Each option may have
additional  terms  and  conditions  consistent  with  the  1991  Option  Plan as
determined by the Committee.

Accelerating Events

         Unless  otherwise  provided  in the grant  letter,  options  granted to
executive  officers  and  directors  of  the  Company  will  become  immediately
exercisable  in full upon the  occurrence  of any of the following  events:  (i)
delivery of written notice of a stockholders  meeting to consider a merger, sale
of substantially all of the assets, or
                                      -16-
<PAGE>
similar  reorganization  of the Company;  (ii) the  acquisition by any person of
securities  representing  25% or more of the total  number of votes  that may be
cast for the election of the Company's directors; (iii) commencement of a tender
offer for stock of the Company; or (iv) subject to certain  exceptions,  failure
of any person  nominated  by the Company to be elected to the Board of Directors
at any annual or special meeting involving an election contest.

Grants to Nonemployee Directors

         Each director who is not an employee of the Company shall automatically
be  awarded  options  for the  purchase  of 2,500  shares of Common  Stock  upon
approval  of the 1991  Option  Plan by the  stockholders.  Thereafter,  (i) each
person who is not an employee  of the  Company and who becomes a director  shall
receive an option for 2,500  shares of Common  Stock at the time of joining  the
Board; and (ii) each director shall automatically be granted options to purchase
2,500 shares of Common Stock each January 1. The exercise  price shall equal the
fair market value on each grant date,  and such options shall be  exercisable in
full six  months  after the date of grant  and  until  two years  after a person
ceases  to be a  director.  The  automatic  grants  are  structured  so that the
recipients can qualify as disinterested  administrators  of the 1991 Option Plan
under Rule 16b-3.

Termination or Amendment of the 1991 Option Plan

         The 1991 Option Plan provides that the Board may at any time  terminate
or amend the 1991 Option Plan without stockholder approval except where so doing
would result in  noncompliance  with Rule 16b-3,  the Code, or other  applicable
laws or regulations. Unless sooner terminated by the Board, the 1991 Option Plan
will expire in April 2001 solely with respect to the granting of incentive stock
options.

Certain Federal Income Tax Consequences

         The following is a brief summary of the Company's  understanding of the
principal  Federal  income tax  consequences  of grants or awards made under the
1991 Option Plan based upon the  applicable  provisions of the Code in effect on
the date hereof.

         Nonqualified  Stock  Options.  An optionee will not  recognize  taxable
income at the time an NSO is granted.  Upon exercise of an NSO, an optionee will
recognize  compensation  income in an amount equal to the difference between the
exercise  price and the fair market value of the shares at the date of exercise.
The amount of such  difference  will be a deductible  expense to the Company for
tax purposes.  On a subsequent sale or exchange of shares  acquired  pursuant to
the  exercise of an NSO,  the  optionee  will  recognize a taxable gain or loss,
measured by the difference  between the amount  realized on the  disposition and
the tax basis of such shares. The tax basis will, in general, be the amount paid
for the shares plus the amount  treated as  compensation  income at the time the
shares were acquired pursuant to the exercise of the option.

         When the NSO exercise  price is paid in stock,  the exercise is treated
as: (a) a tax-free  exchange  of the shares of stock  (without  recognizing  any
taxable  gain with  respect  thereto) for a like number of new shares (with such
new  shares  having the same basis and  holding  period as the old);  and (b) an
issuance of a number of  additional  shares  having a fair market value equal to
the "spread"  between the exercise price and the fair market value of the shares
for which the NSO is exercised.  The optionee's  basis in the additional  shares
will equal the fair market  value of the shares on the date of exercise  and the
holding  period for such  shares  will begin on the date the  optionee  acquires
them.  This mode of payment  does not affect the ordinary  income tax  liability
incurred upon exercise of the NSO described above.

         Incentive Stock Options.  An optionee will not recognize taxable income
at the time an ISO is granted.  Further,  an optionee will not recognize taxable
income  upon  exercise  of an ISO if the  optionee  complies  with two  separate
holding  periods:  shares  acquired  upon exercise of an ISO must be held for at
least two years after the date of grant and for at least one year after the date
of exercise. The difference between the exercise price and the fair market value
of the stock at the date of exercise is,  however,  an  alternative  minimum tax
preference item. When
                                      -17-
<PAGE>
the shares of stock  received  pursuant  to the  exercise  of an ISO are sold or
otherwise  disposed of in a taxable  transaction  and the  optionee has complied
with the appropriate holding periods, the optionee will recognize a capital gain
or loss,  measured by the  difference  between the exercise price and the amount
realized.

         Ordinarily,  an employer granting ISOs will not be allowed any business
expense deduction with respect to stock issued upon exercise of an ISO. However,
if all the  requirements  for an ISO are met except for the holding period rules
set forth above,  the optionee will be required,  at the time of the disposition
of the stock, to treat the lesser of the gain realized or the difference between
the  exercise  price  and the  fair  market  value  of the  stock at the date of
exercise as ordinary income and the excess, if any, as capital gain. The Company
will be allowed a corresponding  business expense deduction to the extent of the
amount of the optionee's ordinary income.

Valuation

         As of May 10, 1996,  the last sale price of the Company's  Common Stock
as reported on the Nasdaq Stock Market was $3.00 per share.

Option Grants

         As of May 13, 1996,  Walfred R. Raisanen,  S. Thomas  Emerson,  John P.
Hudnall, Quinn Johnson,  Richard Long, Patricia Onderdonk and Stanley Weiss have
been granted  options for an aggregate of 68,000 shares,  15,000 shares,  81,600
shares,   40,800  shares,  15,000  shares,  12,500  shares  and  10,000  shares,
respectively  under the 1991 Option Plan;  all current  executive  officers as a
group (six persons) have been granted  options for 333,200 shares under the 1991
Option Plan; all current  directors (who are not executive  officers) as a group
(four  persons) have been issued options for 52,500 shares under the 1991 Option
Plan;  and all  employees  as a  group  (not  including  executive  officers  or
nonemployee  directors)  have been issued  options for 170,723  shares under the
1991 Option Plan.

         As of the date of this proxy statement, there has been no determination
by the Committee  with respect to future awards under the 1991 Option Plan.  The
table of option grants under "Executive Compensation -- Option/SAR Grants in the
Last Fiscal  Year"  provides  information  with  respect to the grant of options
under the 1991 Option Plan during the last fiscal year to the executive officers
named in the Summary  Compensation Table. For information  regarding the options
granted to the non-executive  officer directors during the past fiscal year, see
"Executive Compensation -- Compensation of Directors."

Recommendation

         The Board of Directors  unanimously  recommends  that the  stockholders
vote FOR approval of this proposal to amend the Arizona Instruments  Corporation
1991  Stock  Option  Plan to  increase  the  number of  shares  of Common  Stock
available for grant under the 1991 Option Plan by 300,000 shares.


                                   PROPOSAL 5

                       APPOINTMENT OF INDEPENDENT AUDITORS

         The  Board  of  Directors  has  appointed  Deloitte  &  Touche  LLP  as
independent  auditors  to audit the  consolidated  financial  statements  of the
Company  for the fiscal  year  ending  December  31,  1996 and  recommends  that
stockholders  vote  for  ratification  of such  appointment.  In the  event of a
negative vote on such ratification, the Board will reconsider its selection.
                                      -18-
<PAGE>
         Deloitte & Touche LLP has audited the  Company's  financial  statements
annually  since  1981.  Its  representatives  are  expected to be present at the
meeting with the opportunity to make a statement if they desire to do so and are
expected to be available to respond to appropriate questions.

                                  OTHER MATTERS

         The Company  knows of no other  matters to be submitted at the meeting.
If any other matters  properly  come before the meeting,  it is the intention of
the persons named in the enclosed  proxy card to vote the shares they  represent
as the Board of Directors may recommend.

                              STOCKHOLDER PROPOSALS

         Proposals  of  stockholders  of the  Company  which are  intended to be
presented by such  stockholders  at the Company's  annual meeting for the fiscal
year  ending  December  31,  1996 must be  received by the Company no later than
January 25, 1997 in order that they may be considered for inclusion in the proxy
statement  and  form of  proxy  relating  to that  meeting.  Additionally,  if a
stockholder  wishes to present to the  Company an item for  consideration  as an
agenda item for a meeting,  he must timely give notice to the Secretary and give
a brief  description of the business  desired to be discussed.  To be timely for
this Annual Meeting,  such notice must be delivered to or mailed to and received
by the Company no later than 5:00 p.m. local time on June 7, 1996.


                              AVAILABLE INFORMATION

         The Company files annual reports on Form 10-KSB with the Securities and
Exchange Commission. A copy of the Form 10-KSB annual report for the fiscal year
ended December 31, 1995 (except for certain  exhibits  thereto) may be obtained,
free of charge,  upon written request by any  stockholder to Arizona  Instrument
Corporation,   4114  East  Wood  Street,  Phoenix,   Arizona  85040,  Attention:
Stockholder Relations. Copies of all exhibits to the annual report are available
upon a  similar  request,  subject  to  payment  of a $.15  per page  charge  to
reimburse the Company for its expenses in supplying any exhibit.


Dated:  May 22, 1996
                                      -19-
<PAGE>
PROXY

                         ARIZONA INSTRUMENT CORPORATION
                              4114 East Wood Street
                             PHOENIX, ARIZONA 85040

THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

         The  undersigned  hereby  appoints  John  Hudnall  and Scott  Carter as
Proxies,  each with the power to appoint his substitute,  and hereby  authorizes
each of them to represent and to vote, as  designated  below,  all the shares of
Common Stock of Arizona Instrument Corporation held of record by the undersigned
on May 15, 1996, at the Annual  Meeting of  Stockholders  to be held on June 27,
1996 or any adjournment thereof.

1.       ELECTION OF DIRECTORS

                 Nominees:

                             Quinn Johnson             S. Thomas Emerson
 
         |_|     FOR ALL NOMINEES (except as           |_| WITHHELD FOR ALL
                 marked  to the contrary below)


                 WITHHELD FOR:  (INSTRUCTION:  TO WITHHOLD AUTHORITY TO VOTE FOR
                 AN INDIVIDUAL NOMINEE, WRITE  THAT  NOMINEE'S NAME ON  THE LINE
                 BELOW:)

                 _______________________________________________________________


2.       PROPOSAL  TO APPROVE  AN  AMENDMENT  OF THE  COMPANY'S  EMPLOYEE  STOCK
         PURCHASE PLAN TO INCREASE THE NUMBER OF SHARES AVAILABLE  THEREUNDER BY
         200,000 SHARES

              |_| FOR                   |_| AGAINST                 |_| ABSTAIN


3.       PROPOSAL  TO APPROVE  AN  AMENDMENT  OF THE  COMPANY'S  EMPLOYEE  STOCK
         PURCHASE PLAN TO PERMIT PARTICIPATION OF SENIOR OFFICERS

              |_| FOR                   |_| AGAINST                 |_| ABSTAIN


4.       PROPOSAL TO APPROVE AN  AMENDMENT  OF THE  COMPANY'S  1991 STOCK OPTION
         PLAN TO INCREASE THE NUMBER OF SHARES AVAILABLE FOR GRANT THEREUNDER BY
         300,000 SHARES

              |_| FOR                   |_| AGAINST                 |_| ABSTAIN

5.       PROPOSAL TO APPROVE AND RATIFY THE APPOINTMENT OF DELOITTE & TOUCHE LLP


              |_| FOR                   |_| AGAINST                 |_| ABSTAIN


6.       In their discretion, the Proxies are authorized to vote upon such other
         business as may  properly  come  before the meeting or any  adjournment
         thereof.

         ------------------------------
<PAGE>
          THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER
                 DIRECTED HEREIN BY THE UNDERSIGNED STOCKHOLDER.
                   IF NO DIRECTION IS MADE, THIS PROXY WILL BE
                   VOTED FOR THE NOMINEES AND FOR PROPOSALS 2,
              3, 4 AND 5 AS RECOMMENDED BY THE BOARD OF DIRECTORS.

         Please sign exactly as name appears below. When shares are held by more
than  one  owner,   all  should  sign.  When  signing  as  attorney,   executor,
administrator,  trustee  or  guardian,  please  give  full  title as such.  If a
corporation,  please sign in full  corporate  name by  President  or  authorized
officer. If a partnership, please sign in partnership name by authorized person.

         Dated: ___________________, 1996
         (Be sure to date this Proxy)


         ____________________________________________
         Signature


         ____________________________________________
         Signature
<PAGE>
                          EMPLOYEE STOCK PURCHASE PLAN



         The following  constitute the provisions of the Employee Stock Purchase
Plan  (herein  called  the  "Plan")  of  Arizona  Instrument   Corporation  (the
"Company").

         1.  Purpose.  The  purpose of the Plan is to provide  employees  of the
Company and its subsidiaries with an opportunity to purchase Common Stock of the
Company through payroll  deductions.  It is the intention of the Company to have
the Plan qualify as an "Employee  Stock  Purchase Plan" under Section 423 of the
Internal  Revenue Code of 1954,  as amended.  The  provisions of the Plan shall,
according ly, be constructed so as to extend and limit participation in a manner
consistent with the requirements of that section of the Code.

         2.       Definitions.

                  (a) "Board" shall mean the Board of Directors of the Company.

                  (b) "Common Stock" shall mean the Common Stock,  no par value,
of the Company.

                  (c) "Company" shall mean Arizona  Instrument  Corporation,  an
Arizona corporation.

                  (d)  "Compensation"  shall  mean  all  regular  straight  time
earnings,  payments  of  overtime,  shift  premiums,  incentive  compensa  tion,
incentive  payments,  bonuses  and  commissions  (except to the extent  that the
exclusion  of any  such  items  is  specifically  directed  by the  Board or its
committee).

                  (e)  "Designated  Subsidiaries"  shall mean the Sub  sidiaries
which  have  been  designated  by the  Board  from  time to  time,  in its  sole
discretion, as eligible to participate in the Plan.

                  (f) "Employee"  means any person,  excluding  senior officers,
who is customarily employed for at least twenty (20) hours per week and has been
so employed for at least twelve (12) months  continuous by the Company or one of
its Designated Subsidiaries.

                  (g) "Plan" shall mean the Employee Stock Purchase Plan.

                  (h)  "Subsidiary"  shall  mean  a  corporation,   domestic  or
foreign, of which not less than 50% of the voting shares are held by the Company
or a  Subsidiary,  whether or not such  corporation  now exists or is  hereafter
organized or acquired by the Company or a Subsidiary.
                                        1
<PAGE>
         3.       Eligibility

                  (a) Any  Employee as defined in  paragraph 2 shall be eligible
to participate in the Plan, subject to limitations  imposed by Section 423(b) of
the Internal Revenue Code of 1954, as amended.

                  (b)  Any  provisions  of  the  Plan  to the  contrary  notwith
standing,  no  Employee  shall  be  granted  an  option  under  the Plan (i) if,
immediately   after  the  grant,  such  Employee  would  own  shares  (including
outstanding  options to purchase) of stock  possessing five percent (5%) or more
of the total  combined  voting  power or value of all  classes  of shares of the
Company or of any parent or subsidiary of the Company, or (ii) which permits his
rights to purchase shares under all employee stock purchase plans of the Company
and its parent and subsidiaries to accrue at a rate which exceeds $25,000 of the
fair market value of the shares  (determined at the time such option is granted)
for each calendar year in which such stock option is outstanding at any time.

         4. Offering Dates. The Plan shall be implemented by one offering during
each  six-month  period of the Plan,  commencing on or about January 1, 1985 and
continuing thereafter until terminated,  in accordance with paragraph 19 hereof.
The Board of  Directors  of the  Company  shall  have the  power to  change  the
duration  of  offering  periods  with  respect  to  future   offerings   without
shareholder  approval,  if such change is announced  at least  fifteen (15) days
prior to the scheduled beginning of the first offering period to be affected.

         5.       Participation.

                  (a) An eligible  Employee may become a participant in the Plan
by completing a subscription  agreement  authorizing a payroll  deduction on the
form provided by the Company,  and filing it with the Company's  payroll  office
prior to the applicable offering date.

                  (b) Payroll deductions for a participant shall commence on the
first payroll  following the offering date and shall end on the termination date
of the  offering  to which  such  authorization  is  applicable,  unless  sooner
terminated by the participant as provided in paragraph 10.

         6.       Payroll Deductions.

                  (a)  At  the  time  a  participant   files  his   subscription
agreement,  he shall elect to have payroll deductions made on each payday during
the  offering  period  at  a  rate  not  exceeding  ten  percent  (10%)  of  the
Compensation  which he is to receive on such payday,  and the  aggregate of such
projected  payroll  deduction  during the  offering  period shall not exceed ten
percent  (10%) of his  aggregate  projected  Compensation  during said  offering
period.

                  (b) All payroll  deductions  authorized by a participant shall
be  credited  to his  account  under the Plan.  A  participant  may not make any
additional payments into such account.
                                       2
<PAGE>
                  (c) A participant  may discontinue  his  participation  in the
Plan as provided in paragraph 10, or may lower,  but not  increase,  the rate of
his payroll  deductions  during the offering by  completing  and filing with the
Company a new authorization for payroll  deduction.  The change in rate shall be
effective  within  fifteen (15) days  following the  Company's  receipt of a new
authorization.

         7.       Grant of Option

                  (a) At the beginning of each six-month  offering period,  each
eligible  Employee  participating  in the Plan  shall be  granted  an  option to
purchase  (at the per  share  option  price)  up to a number  of  shares  of the
Company's  Common Stock  purchasable by each  Employee's  projected  accumulated
payroll  deduction  (not to exceed an amount  equal to ten percent  (10%) of his
Compensation  as of the  date of the  commencement  of the  applicable  offering
period) divided by eighty-five percent (85%) of the fair market value of a share
of the Company's Common Stock at the beginning of said offering period,  subject
to the limitations  set forth in Sections 3(b) and 12 hereof.  Fair market value
of a share of the  Company's  Common  Stock shall be  determined  as provided in
Section 7(b) herein.

                  (b) The  option  price per share of such  shares  shall be the
lesser of: (i) 85% of the fair  market  value of a share of the Common  Stock of
the Company at the commencement of the six-month offering period; or (ii) 85% of
the fair market  value of a share of the Common Stock of the Company at the time
the option is exercised at the termination of the six-month offering period. The
fair market  value of the  Company's  Common  Stock on a given date shall be the
mean of the reported bid and asked prices for that date.

         8. Exercise of Option.  Unless a participant withdraws from the Plan as
provided  in  paragraph  10,  his  option for the  purchase  of shares  shall be
exercised  automatically  at the end of the  offering  period,  and the  maximum
number of full  shares  subject  to  option  shall be  purchased  for him at the
applicable option price with the accumulated  payroll deductions in his account.
During his lifetime,  a  participant's  option to purchase  shares  hereunder is
exercisable only by him.

         9. Delivery.  As promptly as practicable after the termina tion of each
offering,  the company  shall  arrange  the  delivery  to each  participant,  as
appropriate, of a certificate representing the shares purchased upon exercise of
his option.  Any cash  remaining to the credit of a  participant  in his account
under the Plan after a purchase of shares at the  termination  of each  offering
period, or which is insufficient to purchase a full share of Common Stock of the
Company, shall be returned to the participant.

         10.      Withdrawal; Termination of Employment.

                  (a) A  participant  may withdraw all but not less than all the
payroll  deductions  credited to his account under the Plan at any time prior to
the end of the offering  period by giving written 
                                       3
<PAGE>
notice to the Company.  All of the participant's  payroll deductions credited to
his  account  shall be paid to him  promptly  after  receipt  of his  notice  of
withdrawal  and his  option  for  the  current  period  shall  be  automatically
terminated,  and no further payroll deduc tions for the purchase of shares shall
be made for him during the offering period.

                  (b) Upon termination of the participant's  employment prior to
the end of the offering  period for any reason,  including  retirement or death,
the payroll  deductions  credited to his account shall be returned to him or, in
the case of his death, to the person or persons entitled thereto under paragraph
14, and his option shall be automatically terminated.

                  (c) In the  event  an  Employee  fails  to  remain  in the con
tinuous employ of the Company for at least twenty (20) hours per week during the
offering  period in which the employee is a partici  pant, he shall be deemed to
have elected to withdraw  from the Plan and the payroll  deductions  credited to
his account shall be returned to him and his option terminated.

                  (d) A participant's withdrawal from an offering shall not have
any effect upon his  eligibility to participate in an succeeding  offering or in
any similar plan which may hereafter be adopted by the Company.

         11. Interest.  No interest shall accrue on the payroll deduc tions of a
participant in the Plan.

         12.      Stock.

                  (a) The maximum number of shares of the Company's Common Stock
which shall be made  available for sale under the Plan shall be 200,000  shares,
subject to adjustment upon changes in  capitalization of the company as provided
in paragraph  18. The shares to be sold to  participants  under the Plan may, at
the election of the Company,  be either treasury shares,  shares  authorized but
unused,  or shares purchased on the open market.  If the total number of shares,
which would  otherwise  be subject to options  granted  pursuant to Section 7(a)
hereof, at the beginning of an offering period exceeds the number of shares then
available  under the Plan (after  deduction of all shares for which options have
been exercised or are then outstanding),  the Company shall allocate options for
shares  remaining  available for option grant pro rata among the participants in
accordance with the amounts  otherwise  determined  pursuant to Section 7(a). In
such event,  the Company  shall give  written  notice of such  reduction  of the
number of shares subject to the option to each participant  affected thereby and
shall similarly reduce the rate of payroll deductions, if necessary.

                  (b) A  participant  shall have no interest or voting  right in
shares covered by his option until such option has been exercised.
                                       4
<PAGE>
                  (c) Shares to be  delivered  to a  participant  under the Plan
shall be registered  either in the name of the participant or in the name of the
participant and his spouse.

         13.  Administration.  The Plan  shall be  administered  by the Board of
Directors  of  the  Company  or  a  committee   appointed  by  the  Board.   The
administration,  interpretation  or  application of the Plan by the Board or its
committee shall be final, conclusive and binding upon all participants.  Members
of the committee who are eligible  Employees are permitted to participate in the
Plan.

         14.      Designation of Beneficiary.

                  (a)  A  participant  may  file  a  written  designation  of  a
beneficiary  who is to  receive  any  shares  or  cash  or  both  to  which  the
participant may be entitled under the Plan at the time of his death.

                  (b) Such  designation  of  beneficiary  may be  changed by the
participant  at any time by  written  notice,  in the  event  of the  death of a
participant  and in the absence of a beneficiary  validly  designated  under the
Plan who is living at the time of such  participant's  death,  the Company shall
deliver  any shares and any cash to which the  participant  was  entitled to the
executor  or  administrator  of the  estate  of the  participant,  or if no such
executor or administrator  has been appointed (to the knowledge of the Company),
the Company in its discretion,  may deliver any such shares and any such cash to
the spouse or children of the participant,  or if no spouse or child is known to
the Company, then to such other person as the Company may designate.

         15.   Transferability.   Neither  payroll  deductions   credited  to  a
participant's account nor any right with regard to the exercise of any option or
rights to receive shares under the Plan may be assigned, transferred, pledged or
otherwise  disposed of in any way (other  than by will,  the laws of descent and
distribution,  or as provided in  paragraph 14 hereof) by the  participant.  Any
such  attempt at  assignment,  transfer,  pledge or other  disposition  shall be
without  effect,  except  that the  Company may treat such act as an election to
withdraw funds in accordance with paragraph 10.

         16.  Use of  Funds.  All  payroll  deductions  received  or held by the
Company under the Plan may be used by the Company for any corporate purpose, and
the Company shall not be obligated to segregate such payroll deductions.

         17.  Reports.   Individual   accounts  shall  be  maintained  for  each
participant in the Plan.  Statements of account shall be given to  participating
Employees  semiannually  promptly  following  the  stock  purchase  date,  which
statements  shall set forth the  amount  of  payroll  deductions,  the per share
purchase price,  the number of shares  purchased and the remaining cash balance,
if any.

         18. Adjustments Upon Changes in Capitalization. Subject to any required
action by the shareholders of the Company,  the number
                                       5
<PAGE>
of shares of Common  Stock  covered by each option  under the Plan which has not
yet been  exercised  and the  number of shares of Common  Stock  which have been
authorized for issuance under the Plan but have not yet been placed under option
(collectively,  the "Reserves"),  as well as the price per share of Common Stock
covered by each option under the Plan which has not yet been exercised, shall be
proportionately  adjusted  for any  increase or decrease in the number of issued
shares of Common  Stock  resulting  from a stock split or the payment of a stock
dividend (but only on the Common Stock) or any other increase or decrease in the
number of shares of Common Stock effected  without receipt of  consideration  by
the Company; provided, however, that conversion of any convertible securities of
the  Company  shall  not be deemed to have been  "effected  without  receipt  of
consideration."  Such adjustment shall be made by the Board, whose determination
in that  respect  shall be final,  binding and  conclusive.  Except as expressly
provided  herein,  no issue by the Company of shares of stock of any class shall
affect,  and no adjustment by reason  thereof shall be made with respect to, the
number or price of shares of Common Stock subject to an option.

                  The Board may, if it so determines in the exercise of its sole
discretion, also make provision for adjusting the Reserves, as well as the price
per share of Common Stock covered by each out standing option, in the event that
the  Company  effects  one or  more  reorganizations,  capitalizations,  rights,
offerings,  or other increases or reductions of shares of its outstanding Common
Stock,  and in the event the  Company is  consolidated  with or merged  into any
other corporation.

         19.  Amendment or  Termination.  The Board of Directors may at any time
terminate or amend the Plan.  No  termination  shall affect  options  previously
granted. No amendment shall make any change in any option granted under the Plan
which adversely affects the right of any participant. No amendment shall be made
without  prior  approval of the  shareholders  of the Company if such  amendment
would:

                  (a) increase the number of shares that may be issued under the
Plan;

                  (b)  Permit  payroll  deductions  at a rate in  excess  of ten
percent (10%) of the participant's Compensation;

                  (c) Materially  modify the  requirements as to eligibility for
participation in the Plan; or

                  (d)  Materially  increase  the  benefits  which may  accrue to
participants under the Plan.

         20. Notices.  All notices or other  communications  by a participant in
the Company  under or in  connection  with the Plan shall be deemed to have been
duly given when  received in the form  specified by the Company at the location,
or by the person, designated by the Company for the receipt thereof.
                                       6
<PAGE>
         21. Shareholder Approval. This Plan shall be subject to approval by the
affirmative  vote of the holders of a majority of the outstanding  shares of the
Company present or represented and entitled to vote thereon.

         22. Conditions Upon Issuance of Shares. Shares shall not be issued with
respect to any option  unless  the  exercise  of such  option and  issuance  and
delivery of such  shares  pursuant  thereto  shall  comply  with all  applicable
provisions  of law,  domestic or foreign,  including,  without  limitation,  the
Securities  Act of 1933,  as amended,  the  Securities  Exchange Act of 1934, as
amended, the rules and regulations promulgated thereunder,  and the requirements
of any stock  exchange  upon which the  shares may then be listed,  and shall be
further  subject to the approval of counsel for the Company with respect to such
compliance.

                  As a  condition  to the  exercise  of option,  the Company may
require the person  exercising  such option to represent and warrant at the time
of any such exercise that the shares are being purchased only for investment and
without  any  present  intention  to sell or  distribute  such shares if, in the
opinion of counsel for the Company,  such a representation is required by any of
the aforementioned applicable provisions of law.
                                        7
<PAGE>
                             1991 STOCK OPTION PLAN


1.       Purpose

         The purposes of the Arizona  Instrument  Corporation  1991 Stock Option
Plan  ("Plan")  are to  attract  and  retain the best  available  employees  and
directors  of Arizona  Instrument  Corporation  or any parent or  subsidiary  or
affiliate  of Arizona  Instrument  Corporation  which now exists or hereafter is
organized   or   acquired  by  or  acquires   Arizona   Instrument   Corporation
(collectively  or individually as the context requires the "Company") as well as
appropriate third parties who can provide valuable  services to the Company,  to
provide  additional  incentive to such persons and to promote the success of the
business of the Company.  This Plan is intended to comply with Rule 16b- 3 under
Section 16 of the  Securities  Exchange Act of 1934, as amended or any successor
rule  ("Rule  16b-3"),  and  the  Plan  shall  be  construed,   interpreted  and
administered to so comply.

2.       Incentive and Nonqualified Stock Options

         Two  types  of  options  (referred  to  herein  as  "options,"  without
distinction  between  such two  types) may be  granted  under the Plan:  options
intended to qualify as incentive stock options ("incentive stock options") under
Section 422 of the United States Internal  Revenue Code of 1986, as amended,  or
any successor provision ("Code");  and other options intended not to qualify for
favorable  income tax  treatment  under  Sections  421  through  424 of the Code
("nonqualified stock options").

3.       Eligibility and Administration

         (a) Eligibility. The following individuals shall be eligible to receive
grants pursuant to the Plan as follows:

                  i) Any employee  (including  any officer or director who is an
         employee)  of the Company or any ISO Group  member shall be eligible to
         receive either  incentive stock options or  nonqualified  stock options
         under the Plan.  An employee may receive more than one option under the
         Plan.

                  ii) Any  director who is not an employee of the Company or any
         Affiliated  Group member  shall be eligible to receive  options only as
         set forth in Section 8.

                  iii) Any other  individual whose  participation  the committee
         determines is in the best interests of the Company shall be eligible to
         receive nonqualified stock options.

         (b)  Administration.  The Plan shall be  administered by a committee or
committees  appointed by the Board of Directors of the Company (the  "Board") so
constituted as to permit the Plan to comply under Rule 16b-3. All administrative
powers may be delegated by a committee,
                                       1
<PAGE>
except where  required for  selection  and  determination  of grants for persons
subject  to  Section  16 of the  Securities  Exchange  Act of 1934,  as  amended
("Section  16"). The Company shall indemnify and hold harmless each director and
committee member for any action or determination made in good faith with respect
to the Plan or any option.  Determinations  by the committee  shall be final and
conclusive upon all persons.

4.       Shares Subject to Options

         The stock available for grant of options under the Plan shall be shares
of the Company's  authorized but unissued or reacquired voting common stock. The
aggregate  number of shares  that may be issued  pursuant to exercise of options
granted  under the Plan shall be  450,000  shares.  Additionally,  each year the
aggregate  number of shares of stock that may be issued  pursuant to exercise of
nonqualified  stock options (but not  incentive  stock  options)  under the Plan
shall automatically increase annually on January 1 by the number of shares equal
to 1% of the  outstanding  common  shares on such date and shall not  thereafter
decrease except by specific  action of the Board;  provided,  however,  that the
aggregate  number of shares  available for issuance  pursuant to the Plan, minus
the number of shares that are subject to  outstanding  options and the number of
shares that have been  purchased  upon exercise of options,  shall not exceed on
any January 1 over 10% of the  outstanding  common  shares.  If any  outstanding
option grant under the Plan for any reason expires or is terminated,  the shares
of common stock allocable to the  unexercised  portion of the option grant shall
again be available  for options under the Plan as if no options had been granted
with respect to such shares.

5.       Terms and Condition of Options

         Option  grants under the Plan shall be evidenced by  agreements in such
form and containing  such  provisions  which are consistent with the Plan as the
committee shall from time to time approve.  Each agreement shall specify whether
the option(s) granted thereby are incentive stock options or nonqualified  stock
options.  Such  agreements  may  incorporate  all or any of the terms  hereof by
reference  and shall  comply  with and be  subject  to the  following  terms and
conditions:

         (a) Shares  Granted.  Each option  grant  agreement  shall  specify the
number of incentive  stock  options  and/or  nonqualified  stock  options  being
granted;  one  option  shall be  deemed  granted  for each  share of  stock.  In
addition,  each option grant agreement shall specify the  exercisability  and/or
vesting schedule of such options, if any.

         (b) Purchase  Price.  The purchase  price for a share  subject to (i) a
nonqualified  option  may be any  amount  above  the par  value  of  such  share
determined in good faith by the committee,  and (ii) unless otherwise  permitted
at a lower price by the Code, an incentive option shall not be less than 100% of
the fair market value of the share on the date the option is granted,  provided,
however,  the option price on an  incentive  stock option shall not be less than
110% of the fair market value of such share on the date the option is granted to
an  individual  then  owning  (after  the  application  of the  family and other
attribution rules of Section 424(d) or 
                                       2
<PAGE>
any successor rule of the Code) more than 10% of the total combined voting power
of all classes of stock of the Company or any ISO Group member.  For purposes of
the Plan,  "fair  market  value" at any date shall be (i) the  reported  closing
price of such stock on the New York Stock  Exchange or other  established  stock
exchange or  National  Market  System on such date,  or if no sale of such stock
shall have been made on such  exchange on that date,  on the  preceding  date on
which  there  was  such a sale,  (ii) if such  stock is not  then  listed  on an
exchange or the National Market System, the average of the closing bid and asked
prices  per share  for such  stock in the  over-the-counter  market as quoted on
NASDAQ or the pink sheets or successor  publication  of the  National  Quotation
Bureau  on such  date,  or (iii) if the  stock is not then  listed  or quoted as
referenced above, an amount determined in good faith by the committee.

         (c)  Termination.  Unless  otherwise  provided  herein or in a specific
option  grant  agreement  which may  provide  for longer or  shorter  periods of
exercisability,  no option  shall be  exercisable  after the  expiration  of the
earliest of

                  i)       in the case of an incentive stock option:

                           (1) ten years from the date the option is granted, or
                  five  years  from  the  date  the  option  is  granted  to  an
                  individual  owning  (after the  application  of the family and
                  other  attribution rules of Section 424(d) of the Code) at the
                  time  such  option  was  granted,  more  than 10% of the total
                  combined  voting  power of all classes of stock of the Company
                  or any ISO Group member,

                           (2) three months  after the date the optionee  ceases
                  to perform  services for the Company or any ISO Group  member,
                  if  such  cessation  is  for  any  reason  other  than  death,
                  disability (within the meaning of Code Section  22(e)(3)),  or
                  cause,

                           (3) one year  after the date the  optionee  ceases to
                  perform  services for the Company or any ISO Group member,  if
                  such cessation is by reason of disability  (within the meaning
                  of Code Section 22(e)(3)),

                           (4) three years after the date the optionee ceases to
                  perform  services for the Company or any ISO Group member,  if
                  such cessation is by reason of death, or

                           (5) the date the optionee ceases to perform  services
                  for the Company or any ISO Group member,  if such cessation is
                  for  cause,  as  determined  by  the  committee  in  its  sole
                  discretion;

                  ii)      in the case of a nonqualified stock option:

                           (1) twenty years from the date the option is granted,
                                       3
<PAGE>
                           (2) two years after the date the  optionee  ceases to
                  perform  services  for the  Company  or any  Affiliated  Group
                  member,  if such cessation is for any reason other than death,
                  permanent disability, retirement or cause,

                           (3) three years after the date the optionee ceases to
                  perform  services  for the  Company  or any  Affiliated  Group
                  member,  if such  cessation  is by reason of death,  permanent
                  disability or retirement, or

                           (4) the date the optionee ceases to perform  services
                  for  the  Company  or any  Affiliated  Group  member,  if such
                  cessation is for cause,  as determined by the committee in its
                  sole discretion;

provided,  that an option shall only be  exercisable  for the periods  described
above  following the date an optionee  ceases to perform  services to the extent
the option was exercisable on the date of such cessation.

         (d)  Method of  Payment.  The  purchase  price for any share  purchased
pursuant to the  exercise of an option  granted  under the Plan shall be paid in
full upon exercise of the option by any of the following  methods,  (i) by cash,
(ii) by check,  or (iii) to the  extent  permitted  under the  particular  grant
agreement,  by  transferring  to the  Company  shares of stock of the Company at
their fair market  value as of the date of exercise of the option as  determined
in accordance with paragraph 5(b).  Notwithstanding  the foregoing,  the Company
may arrange for or cooperate in permitting  cashless exercise procedures and may
extend and maintain,  or arrange for the extension and maintenance of, credit to
an  optionee  to finance  the  optionee's  purchase  of shares  pursuant  to the
exercise of options, on such terms as may be approved by the committee,  subject
to applicable  regulations of the Federal Reserve Board and any other applicable
laws or regulations in effect at the time such credit is extended.

         (e) Exercise.  No option shall be exercisable during the lifetime of an
optionee by any person  other than the  optionee,  his or her  guardian or legal
representative.  The  committee  shall  have the  power to set the time or times
within  which each option shall be  exercisable  and to  accelerate  the time or
times of exercise.  To the extent that an optionee has the right to exercise one
or more options and purchase  shares  pursuant  thereto,  the  option(s)  may be
exercised from time to time by written notice to the Company  stating the number
of shares being  purchased  and  accompanied  by payment in full of the purchase
price for such shares.  Any certificate for shares of outstanding  stock used to
pay the purchase  price shall be  accompanied  by a stock power duly endorsed in
blank by the registered  owner of the  certificate  (with the signature  thereon
guaranteed).  In the event the  certificate  tendered  by the  optionee  in such
payment covers more shares than are required for such payment,  the  certificate
shall also be  accompanied  by  instructions  from the optionee to the Company's
transfer  agent with  respect to the  disposition  of the  balance of the shares
covered thereby.

         (f) Nontransferability.  No option shall be transferable by an optionee
otherwise than by will or the laws of descent and distribution.
                                       4
<PAGE>
         (g) ISO $100,000 Limit. If required by applicable tax rules regarding a
particular grant, to the extent that the aggregate fair market value (determined
as of the date an incentive  stock option is granted) of the shares with respect
to which an  incentive  stock  option  under  this  Plan  (when  aggregated,  if
appropriate),  with shares subject to other  incentive  stock option grants made
before said grant under this Plan or any other plan maintained by the Company or
any ISO Group member) is  exercisable  for the first time by an optionee  during
any calendar year exceeds  $100,000 (or such other limit as is prescribed by the
Code),  such  option  grant  shall be treated as a grant on  nonqualified  stock
options pursuant to Code Section 422(d).

         (h)  Investment  Representation.  Unless the shares of stock covered by
the Plan  have been  registered  with the  Securities  and  Exchange  Commission
pursuant to Section 5 of the Securities  Act of 1933, as amended,  each optionee
by accepting an option grant  represents and agrees,  for himself or herself and
his or her transferees by will or the laws of descent and distribution, that all
shares of stock purchased upon the exercise of the option grant will be acquired
for  investment  and not for resale or  distribution.  Upon such exercise of any
portion of an option grant,  the person entitled to exercise the same shall upon
request of the Company furnish evidence satisfactory to the Company (including a
written  and signed  representation)  to the effect that the shares of stock are
being acquired in good faith for investment and not for resale or  distribution.
Furthermore,  the  Company  may  if it  deems  appropriate  affix  a  legend  to
certificates  representing  shares of stock  purchased  upon exercise of options
indicating  that such shares have not been  registered  with the  Securities and
Exchange Commission and may so notify its transfer agent.

         (i) Rights of  Optionee.  An optionee or  transferee  holding an option
grant shall have no rights as a  shareholder  of the Company with respect to any
shares  covered by any option  grant  until the date one or more of the  options
granted  thereunder have been properly exercised and the purchase price for such
shares  has  been  paid in full.  No  adjustment  shall  be made  for  dividends
(ordinary or  extraordinary,  whether  cash,  securities  or other  property) or
distributions  or other  rights for which the  record  date is prior to the date
such share  certificate  is issued,  except as provided for in  paragraph  5(k).
Nothing in the Plan or in any  option  grant  agreement  shall  confer  upon any
optionee  any right to  continue  performing  services  for the  Company  or any
Affiliated  Group member,  or interfere in any way with any right of the Company
or any Affiliated Group member to terminate the optionee's services at any time.

         (j)  Fractional  Shares.  The  Company  shall not be  required to issue
fractional  shares upon the exercise of an option.  The value of any  fractional
share  subject to an option grant shall be paid in cash in  connection  with the
exercise  that  results  in all full  shares  subject to the grant  having  been
exercised.

         (k)  Reorganizations,  Etc. If the  outstanding  shares of stock of the
class then subject to this Plan are increased or decreased,  or are changed into
or exchanged for a different number or kind of shares or securities, as a result
of one or more reorganizations,  recapitalizations,  stock splits, reverse stock
splits, stock dividends, spin-off, spin-out or other distribution of assets to
shareholders,  or  assumption  and  conversion of  outstanding  grants due to an
acquisition and the 
                                       5
<PAGE>
like, appropriate  adjustments shall be made in the number and/or type of shares
or securities  for which  options may  thereafter be granted under this Plan and
for which options then outstanding  under this Plan may thereafter be exercised.
Any such  adjustments in outstanding  options shall be made without changing the
aggregate exercise price applicable to the unexercised portions of such options.
Notwithstanding  the  foregoing  but  subject  to Section 9, a merger or similar
reorganization that the Company does not survive, a sale of all or substantially
all of the assets of the  Company,  or the  dissolution  or  liquidation  of the
Company  shall cause every option  outstanding  hereunder to  terminate,  to the
extent not then exercised, except to the extent that any surviving entity agrees
to assume the Plan and/or the obligations under any such option.

         (l) Option Modification. Subject to the terms and conditions and within
the  limitations  of the  Plan,  the  committee  may  modify,  extend  or  renew
outstanding  options granted under the Plan, accept the surrender of outstanding
options (to the extent not theretofore exercised),  reduce the exercise price of
outstanding  options,  and authorize the granting of new options in substitution
therefor  (to  the  extent  not  theretofore  exercised).   Notwithstanding  the
foregoing, no modification of an option (either directly or through modification
of the Plan)  shall,  without the consent of the  optionee,  alter or impair any
rights of the optionee under the option.

         (m) Grants to Foreign Optionees.  The committee in order to fulfill the
Plan purposes and without  amending the Plan may modify  grants to  participants
who  are  foreign  nationals  or  performing  services  for  the  Company  or an
Affiliated  Group member  outside the United States to recognize  differences in
local law, tax policy or custom.

         (n) Other  Terms.  Each option grant  agreement  may contain such other
terms,  provisions  and  conditions  not  inconsistent  with  the Plan as may be
determined  by  the  committee,   such  as  without   limitation   discretionary
performance  standards,   tax  withholding   provisions,   or  other  forfeiture
provisions regarding competition and confidential information.

6.       Termination or Amendment of the Plan

         The Board may at any time terminate or amend the Plan;  provided,  that
shareholder  approval  shall be  obtained  of any action  for which  shareholder
approval  is  required  in order to comply  with Rule  16b-3,  the Code or other
applicable laws or regulatory requirements within such time periods prescribed.

7.       Shareholder Approval and Term of the Plan

         The Plan  shall be  effective  as of April  26,  1991,  the date it was
adopted by the Board, subject to ratification by the shareholders of the Company
within (each of) the time period(s)  prescribed  under Rule 16b-3, the Code, and
any  other  applicable  laws or  regulatory  requirements,  and  shall  continue
thereafter until terminated by the Board. Unless sooner terminated by the Board,
in its sole discretion, the Plan will expire on April 26, 2001 solely with
                                      6

<PAGE>
respect to the granting of incentive  stock options or such later date as may be
permitted by the Code for incentive stock options.

8.       Automatic Grants to Certain Directors

         At the time  this  Plan is  approved  by a vote of  shareholders,  each
director  who is not an employee of the Company or any  Affiliated  Group member
shall automatically be awarded 2,500 nonqualified stock options.  Thereafter, at
the time each person who is not an  employee  of the  Company or any  Affiliated
Group member becomes a director and on each subsequent January 1 thereafter each
nonemployee  director shall be automatically  granted 2,500  nonqualified  stock
options.  The exercise price shall equal the fair market value on each such date
and such  options  shall be  exercisable  in full for the period  beginning  six
months after the date of grant and ending two years after the optionee ceases to
be a director;  provided,  however,  such options shall terminate immediately on
the date that a director ceases to be a director for cause. This Section 8 shall
not be  amended  more than once every six  months  other  than to  comport  with
changes in the Code, the Employee  Retirement  Income Security Act, or the rules
thereunder.

9.       Acceleration of Exercisability and Vesting Under Certain Circumstances

         Notwithstanding any provision in the Plan to the contrary,  with regard
to any option granted to any executive officer or director of the Company unless
the  particular  letter of grant  provides  otherwise,  the option  will  become
immediately  exercisable  and  vested in full upon the  occurrence,  before  the
expiration or termination of such option, of any of the events listed below:

                  (a) delivery of written notice of a  stockholders'  meeting to
the stockholders of the Company announcing a stockholders'  meeting at which the
stockholders will consider a proposed merger, proposed sale of substantially all
the assets, or similar proposed reorganization of the Company; or

                  (b) the  acquisition of beneficial  ownership (as such term is
defined in Rule 13d-3 as promulgated under the Securities  Exchange Act of 1934)
by any  "person"  (as  such  term is used in  Sections  13(d)  and  14(d) of the
Securities  Exchange  Act  of  1934),  other  than  the  Company,   directly  or
indirectly,  of securities representing 25% or more of the total number of votes
that may be cast for the election of directors of the Company; or

                  (c)  commencement   (within  the  meaning  of  Rule  14d-2  as
promulgated  under the Securities  Exchange Act of 1934) of a "tender offer" for
stock of the Company subject to Section 14(d)(2) of the Securities  Exchange Act
of 1934; or

                  (d) failure, at any annual or special meeting of the Company's
shareholders  following  an  "election  contest"  subject  to  Rule  14a-11  (as
promulgated  under the Securities  Exchange Act of 1934),  of any of the persons
nominated by the Company in the proxy  material  mailed to  shareholders  by the
management of the Company to win election to seats on the Board,
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excluding only those who die, retire voluntarily,  are disabled or are otherwise
disqualified  in the  interim  between  their  nomination  and  the  date of the
meeting.

10.      Definitions

                  (a)  "Affiliate"  means any  corporation,  partnership,  joint
venture or other  entity,  domestic or  foreign,  in which the  Company,  either
directly or through another affiliate or affiliates, has a 50% or more ownership
interest.

                  (b)  "Affiliated  Group"  means  the group  consisting  of the
Company and any entity that is an  "affiliate," a "parent" or a "subsidiary"  of
the Company.

                  (c) "ISO Group" means the group  consisting of the Company and
any corporation that is a "parent" or a "subsidiary" of the Company.

                  (d)  "Parent"  means a  corporation  that is a "parent" of the
Company within the meaning of Code Section 424(e).

                  (e) "Subsidiary" means a corporation that is a "subsidiary" of
the Company within the meaning of Code Section 424(f).
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