MOLECULAR DEVICES CORP
8-K, 1999-05-26
LABORATORY ANALYTICAL INSTRUMENTS
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D. C. 20549

                                    FORM 8-K

                                 CURRENT REPORT


                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


         Date of Report (Date of earliest event reported): May 17, 1999



                          MOLECULAR DEVICES CORPORATION
             (Exact name of registrant as specified in its charter)


                                    Delaware
                 (State or other jurisdiction of incorporation)



         0-27316                                          94-2914362
(Commission File No.)                          (IRS Employer Identification No.)



                               1311 Orleans Drive
                           Sunnyvale, California 94089
              (Address of principal executive offices and zip code)



       Registrant's telephone number, including area code: (408) 747-1700


                                       1
<PAGE>


         This Current  Report on Form 8-K contains  forward  looking  statements
that involve risks and  uncertainties  relating to the  acquisition by Molecular
Devices Corporation,  a Delaware corporation  ("Molecular Devices"),  of Skatron
Instruments AS, a Norwegian  company  ("Skatron"),  and certain of the assets of
Skatron  Instruments,  Inc. a Virginia  corporation  and  former  subsidiary  of
Skatron,  including  the risks:  inherent in  acquiring  a company in  Skatron's
industry  (e.g.   assumption  of  known  and  unknown   liabilities,   including
environmental  liabilities);  that the  synergies  expected  to result  from the
acquisition  described  below  might  not  occur as  anticipated;  the risk that
integration of the companies will be difficult;  and that management's attention
might be  diverted  from  day-to-day  business  activities.  Actual  results and
developments may differ  materially from those described in this Current Report.
For more information  about Molecular Devices and risks relating to investing in
Molecular Devices, refer to Molecular Devices's most recent report on Form 10-K.

Item 2.  Acquisition or Disposition of Assets.

         On May 17, 1999,  Molecular Devices acquired Skatron by the acquisition
of all of the outstanding capital stock of Skatron from Helge Skare, Wiel Skare,
Steinar  Faanes  and  Sten  Skare,   each  an  individual   resident  in  Norway
(collectively,  the "Sellers"), and acquired certain assets (accounts receivable
and inventory) from Skatron  Instruments,  Inc. The acquisition was accomplished
pursuant  to a Stock  and Asset  Purchase  Agreement  dated as of May 17,  1999,
between  and  among  Molecular  Devices,  the  Sellers,   Skatron,  and  Skatron
Instruments,   Inc.  (the  "Purchase   Agreement").   In  connection   with  the
acquisition,  Molecular  Devices paid $6,818,000  million in exchange for all of
the shares of Skatron  capital stock  outstanding  on May 17, 1999. The purchase
prices were  arrived at through  arms-length  negotiations,  and was paid out of
internally generated funds. Of the amount paid for the shares of Skatron capital
stock, $600,000 is being held in escrow for six months to secure the obligations
of certain of the Sellers to indemnify Molecular Devices for any breaches of the
representations  and warranties of those Sellers made in the Purchase Agreement.
The acquisition will be accounted for as a purchase.

         Skatron, designs, develops, manufactures and markets a complete line of
microwell  plate washers and other related  tools,  including  cell  harvesters,
focused  on  the  drug  discovery  and  high-throughput  screening  marketplace.
Molecular  devices  currently  intends to  maintain  Skatron  as a  wholly-owned
subsidiary  located  in Norway  and to have  Skatron  continue  to  conduct  its
business as historically conducted.

                  A copy of the press release announcing the consummation of the
acquisition  is attached  hereto as Exhibit 99.1 and  incorporated  by reference
herein.


Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits.

         (a)   Financial Statements of Businesses Acquired.

         Not applicable.

                                       2
<PAGE>

         (b)   Pro Forma Financial Information

         Not applicable.

         (c)   Exhibits.

     Exhibit No.  Description
     -----------  -----------
     2.1          Stock and Asset Purchase Agreement,  dated as of May 17, 1999,
                  among Molecular Devices Corporation,  a Delaware  corporation,
                  Helge Skare,  Wiel Skare,  Steinar Faanes and Sten Skare, each
                  an individual  resident in Norway,  Skatron  Instruments AS, a
                  Norwegian company, and Skatron  Instruments,  Inc., a Virginia
                  corporation  (the  Disclosure  Schedule  has been  omitted  as
                  permitted  pursuant  to  the  rules  and  regulations  of  the
                  Securities  and  Exchange  Commission  ("SEC"),  but  will  be
                  furnished supplementally to the SEC upon request).

     2.2          Escrow  Agreement,  dated as of May 17, 1999,  among Molecular
                  Devices Corporation, a Delaware corporation, Helge Skare, Wiel
                  Skare and Greater Bay Trust Company, as Escrow Agent.

     4.1          Reference is made to Exhibits 2.1 and 2.2.

     99.1         Press release announcing the consummation of the acquisition.


                                       3
<PAGE>



                                   SIGNATURES

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  registrant  has duly  caused  this report to be signed on its behalf by the
undersigned hereunto duly authorized.



                                      MOLECULAR DEVICES CORPORATION



Dated:  May 25   , 1999               By:  /s/ Timothy H. Harkness
                                         ---------------------------------------
                                           Timothy H. Harkness
                                           Vice President of Finance
                                           and Chief Financial Officer



                                       4
<PAGE>

                                  EXHIBIT INDEX


Exhibit No.       Description
- -----------       -----------

     2.1          Stock and Asset Purchase Agreement,  dated as of May 17, 1999,
                  among Molecular Devices Corporation,  a Delaware  corporation,
                  Helge Skare,  Wiel Skare,  Steinar Faanes and Sten Skare, each
                  an individual  resident in Norway,  Skatron  Instruments AS, a
                  Norwegian company, and Skatron  Instruments,  Inc., a Virginia
                  corporation  (the  Disclosure  Schedule  has been  omitted  as
                  permitted  pursuant  to  the  rules  and  regulations  of  the
                  Securities  and  Exchange  Commission  ("SEC"),  but  will  be
                  furnished supplementally to the SEC upon request).

     2.2          Escrow  Agreement,  dated as of May 17, 1999,  among Molecular
                  Devices Corporation, a Delaware corporation, Helge Skare, Wiel
                  Skare and Greater Bay Trust Company, as Escrow Agent.

     4.1          Reference is made to Exhibits 2.1 and 2.2.

     99.1         Press release announcing the consummation of the acquisition.



================================================================================


                       STOCK AND ASSET PURCHASE AGREEMENT


                                     among:


                         Molecular Devices Corporation,
                             a Delaware corporation;


                             Skatron Instruments AS,
                              a Norwegian company;


                           Skatron Instruments, Inc.,
                             a Virginia corporation;


                                       and


             Helge Skare, Wiel Skare, Steinar Faanes and Sten Skare,

  being all of the Stockholders of Skatron Instruments AS, a Norwegian company

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

                            Dated as of May 17, 1999

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


================================================================================

<PAGE>

<TABLE>
                                                  TABLE OF CONTENTS
<CAPTION>

                                                                                                               Page
                                                                                                               ----

<S>               <C>                                                                                             <C>
Section 1.        Sale and Purchase of Shares and Assets; Related Transactions; Noncompetition....................1

         1.1      Sale and Purchase of Shares and Assets..........................................................1

                  (a)      Sale of Assets of Skatron Instruments, Inc. to the Purchaser...........................1

                  (b)      Sale of Stock of Skatron Instruments, Inc. to Helge Skare or Assigns...................1

                  (c)      Sale of Stock of Skatron to the Purchaser..............................................1

         1.2      Consideration...................................................................................2

                  (a)      Consideration for Sale of Assets of Skatron Instruments, Inc...........................2

                  (b)      Consideration for Sale of Shares of Skatron............................................2

                           (i)      Share Purchase Price..........................................................2

                           (ii)     Payment at Closing............................................................2

                           (iii)    Escrow Amount.................................................................2

                  (c)      Allocation of Purchase Price...........................................................2

         1.3      Closing.........................................................................................2

         1.4      Noncompetition, Confidentiality, etc............................................................4

Section 2.        Representations and Warranties of the Principal Stockholders....................................5

         2.1      Due Organization; No Subsidiaries; Etc..........................................................6

         2.2      Charter Documents; Records......................................................................6

         2.3      Capitalization, Etc.............................................................................6

         2.4      Financial Statements............................................................................7

         2.5      Absence of Changes..............................................................................7

         2.6      Assets..........................................................................................9

         2.7      Bank Accounts...................................................................................9

         2.8      Receivables; Major Customers....................................................................9

         2.9      Inventory......................................................................................10

         2.10     Real Property..................................................................................10

         2.11     Proprietary Assets.............................................................................10

         2.12     Contracts......................................................................................10

         2.13     Liabilities....................................................................................11

         2.14     Compliance With Legal Requirements.............................................................11

         2.15     Governmental Authorizations....................................................................12

         2.16     Employee and Labor Matters.....................................................................12

         2.17     Benefit Plans..................................................................................13

                                                         i.
<PAGE>
                                                  TABLE OF CONTENTS

                                                                                                               Page
                                                                                                               ----

         2.18     Tax Matters....................................................................................13

         2.19     Environmental Matters..........................................................................14

         2.20     Sale of Products; Performance of Services......................................................14

         2.21     Insurance......................................................................................14

         2.22     Related Party Transactions.....................................................................15

         2.23     Proceedings; Orders............................................................................15

         2.24     Authority; Binding Nature of Agreements........................................................15

         2.25     Non-Contravention; Consents....................................................................16

         2.26     Brokers........................................................................................17

         2.27     Selling Stockholders...........................................................................17

         2.28     Full Disclosure................................................................................17

Section 3.        Representations and Warranties of the Purchaser and Skatron....................................18

                  (a)      Authority; Binding Nature of Agreement................................................18

                  (b)      Brokers...............................................................................18

Section 4.        Post-Closing Covenants.........................................................................18

Section 5.        Indemnification, etc...........................................................................18

         5.1      Survival of Representations and Covenants......................................................18

         5.2      Indemnification by Principal Stockholders......................................................19

         5.3      Threshold and Maximum Amount of Indemnification Obligation.....................................19

         5.4      No Contribution................................................................................19

         5.5      Setoff.........................................................................................20

         5.6      Exclusivity of Indemnification Remedies........................................................20

         5.7      Defense of Third Party Claims..................................................................20

                  (a)      Notice................................................................................20

                  (b)      Defense of  Claim.....................................................................20

         5.8      Exercise of Remedies by Indemnitees Other Than Purchaser.......................................21

Section 6.        Miscellaneous Provisions.......................................................................21

         6.1      Joint and Several Liability....................................................................21

         6.2      Further Assurances.............................................................................22

         6.3      Dispute Resolution.............................................................................22

         6.4      Arbitration....................................................................................22

                  (a)      Agreement to Arbitrate................................................................22

                  (b)      Notice of Arbitration.................................................................22

                                                        ii.
<PAGE>
                                                  TABLE OF CONTENTS

                                                                                                               Page
                                                                                                               ----

                  (c)      Selection of the Arbitral Panel.......................................................22

                  (d)      Certain Procedures; Confidentiality...................................................22

                  (e)      Interim Relief........................................................................23

                  (f)      Arbitral Award........................................................................23

                  (g)      Judgment on Award.....................................................................23

                  (h)      Expenses of Arbitration; Attorneys' Fees..............................................23

                  (i)      Law Applicable........................................................................23

         6.5      Fees and Expenses..............................................................................23

         6.6      Attorneys' Fees................................................................................24

         6.7      Notices........................................................................................24

         6.8      Publicity......................................................................................24

         6.9      Time of the Essence............................................................................25

         6.10     Headings.......................................................................................25

         6.11     Counterparts...................................................................................25

         6.12     Force Majeure..................................................................................25

         6.13     Governing Law; Venue...........................................................................25

         6.14     Successors and Assigns.........................................................................25

         6.15     Remedies Cumulative; Specific Performance......................................................25

         6.16     Waiver.........................................................................................26

         6.17     Amendments.....................................................................................26

         6.18     Severability...................................................................................26

         6.19     Parties in Interest............................................................................26

         6.20     Entire Agreement...............................................................................26

         6.21     Construction...................................................................................26

                                                        iii.
</TABLE>

<PAGE>

EXHIBITS


Exhibit A:        Certain Definitions

Exhibit B:        Instrument of Assignment and Assumption

Exhibit C:        Bill of Sale

Exhibit D:        Form of Indemnification Escrow Agreement

Exhibit E:        Form of Consulting Agreement


                                       iv.
<PAGE>

                       STOCK AND ASSET PURCHASE AGREEMENT


         THIS STOCK AND ASSET  PURCHASE  AGREEMENT is entered into as of May 17,
1999,  between  and  among  (i)  MOLECULAR  DEVICES   CORPORATION,   a  Delaware
corporation (the "Purchaser");  (ii) Skatron Instruments AS, a Norwegian company
("Skatron");  (iii)  SKATRON  INSTRUMENTS,  INC., a Virginia  corporation  and a
wholly-owned  subsidiary of Skatron; and (iv) the following parties: HELGE SKARE
and WIEL SKARE (the "Principal Stockholders"), and STEINAR FAANES and STEN SKARE
(together with the Principal Stockholders, the "Selling Stockholders").  Certain
capitalized terms used in this Agreement are defined on Exhibit A.

                                    RECITALS

         A.       Skatron Instruments, Inc. wishes to sell certain assets to the
Purchaser,  and the Purchaser is willing to purchase  such assets,  on the terms
set forth in this Agreement.

         B.       Skatron  wishes to sell to Helge Skare or  assigns,  and Helge
Skare is willing to purchase from  Skatron,  one hundred  percent  (100%) of the
issued and  outstanding  shares of Skatron  Instruments,  Inc.  on the terms set
forth in this Agreement.

         C.       The Selling Stockholders  collectively own 314,400 shares (the
"Shares") of the common stock of Skatron,  which  constitute one hundred percent
(100%) of the outstanding share capital of Skatron.

         D.       The  Selling  Stockholders  wish to  sell  the  Shares  to the
Purchaser  and the  Purchaser is willing to purchase the Shares on the terms set
forth in this Agreement.

                                    AGREEMENT

         The  Purchaser  and the Selling  Stockholders,  intending to be legally
bound, agree as follows:

SECTION 1.        SALE AND PURCHASE OF SHARES AND ASSETS;  RELATED TRANSACTIONS;
                  NONCOMPETITION

         1.1      Sale and Purchase of Shares and Assets.

                  (a)      Sale of Assets of Skatron  Instruments,  Inc. to, and
Assumption of Certain  Liabilities  by, the Purchaser.  At the Closing,  Skatron
Instruments,  Inc.  shall  convey,  sell,  transfer,  assign and  deliver to the
Purchaser all of Skatron Instruments, Inc.'s right, title and interest in and to
certain  accounts  receivable  and certain  inventory and other assets,  and the
Purchaser shall purchase the same from Skatron  Instruments,  Inc., on the terms
and subject to the conditions set forth in this  Agreement.  The Purchaser shall
not assume or have any  liabilities  with respect to any obligation or Liability
of Skatron  Instruments,  Inc., except for the Assumed  Liabilities,  unless the
Purchaser  expressly  assumes such  obligations,  in writing,  after the Closing
Date.

                  (b) Sale of Stock of Skatron Instruments,  Inc. to Helge Skare
or Assigns. At the Closing, Skatron shall sell, assign, transfer and deliver one
hundred percent of the issued and outstanding stock of Skatron Instruments, Inc.
to Helge Skare or his assign(s), and Helge Skare or his assign(s) shall purchase
the same from Skatron,  on the terms and subject to the  conditions set forth in
this Agreement.

                                       1.
<PAGE>

                  (c) Sale of Stock of Skatron to the Purchaser. At the Closing,
the Selling Stockholders shall sell, assign,  transfer and deliver the Shares to
the  Purchaser,  and the  Purchaser  shall  purchase the Shares from the Selling
Stockholders,  on the  terms and  subject  to the  conditions  set forth in this
Agreement.

         1.2 Consideration.

                  (a) Consideration for Sale of Assets and Assumption of Certain
Liabilities of Skatron  Instruments,  Inc. The aggregate  consideration  for the
conveyance,  sale,  transfer and  assignment of the Accounts  Receivable and the
Inventory from Skatron Instruments,  Inc. to the Purchaser shall be Five Hundred
Ten Thousand United States Dollars  (US$510,000)  (the "Asset Purchase  Price").
The Asset Purchase Price shall be paid by the Purchaser to Skatron  Instruments,
Inc. by delivery at Closing of a promissory  note made by the Purchaser  payable
to the order of Skatron Instruments, Inc.

                  (b) Consideration for Sale of Shares of Skatron

                           (i) Share  Purchase  Price.  The  aggregate  purchase
price  payable by the  Purchaser  for the Shares shall be Seven  Million  United
States Dollars (US$7,000,000),  reduced by the aggregate amount of all debt owed
by Skatron to Helge Skare as of the Closing Date, if any, and further reduced by
the aggregate amount of all debt owed by Skatron to any other Person (other than
Short Term Trade Debt incurred in the Ordinary  Course of Business) in excess of
an amount equal to One Hundred Thousand United States Dollars  (US$100,000) (the
"Share Purchase Price"). The Share Purchase Price shall be paid by the Purchaser
to the Selling Stockholders as set forth in this Section 1.2(b).

                           (ii)   Payment  at   Closing.   At  the  Closing  (as
hereinafter  defined),  the Purchaser will pay to the Selling  Stockholders  the
Share Purchase Price, minus the Escrow Amount (the "Cash Share Purchase Price").

                           (iii) Escrow  Amount.  At the Closing,  the Purchaser
will deliver to an  independent  third party  escrow agent in the United  States
(the "Escrow  Agent") the amount of Six Hundred  Thousand  United States Dollars
(US$600,000) (the "Escrow Amount"), which shall form the balance of the Purchase
Price.  The Escrow Agent shall release the Escrow Amount only in accordance with
the terms of the Indemnification Escrow Agreement.

                  (c)  Allocation  of Purchase  Price.  The Cash Share  Purchase
Price shall be allocated among the Selling Stockholders as follows:

                    Helge Skare                    US$  3,029,890
                    Wiel Skare                     US$  2,408,091
                    Steinar Faanes                 US$    621,800
                    Sten Skare                     US$    158,219
                                                   --------------
                    TOTAL                          US$  6,218,000

         1.3 Closing.

                  (a) The  closing  of the sale of the  Shares to the  Purchaser
(the  "Closing")  shall take place at the offices of Cooley Godward LLP, 3000 El
Camino Real, Palo Alto, CA 94306, at 10:00 a.m. (local time) on May 17, 1999, or
at such other place or time as the parties may jointly  designate.  For purposes
of this Agreement:  "Scheduled  Closing Time" shall mean the time and date as of
which the

                                       2.
<PAGE>

Closing is required to take place pursuant to this Section 1.3(a);  and "Closing
Date" shall mean the time and date as of which the Closing actually takes place.

                  (b) At the  Closing,  the  parties  will  take  the  following
actions,  and execute and deliver the following  documents,  in the sequence set
forth below:

                           In   connection   with  the  sale  of  the   Accounts
                           Receivable and the Inventory by Skatron  Instruments,
                           Inc. to the Purchaser:

                           (i)  Skatron  Instruments,   Inc.  will  execute  and
deliver to the Purchaser an Instrument of Assignment  and Assumption in the form
of Exhibit B, conveying,  selling,  transferring  and assigning to the Purchaser
the  accounts   receivable   listed  on  Schedule  1  thereto   (the   "Accounts
Receivable"),  and  evidencing  the  assumption  by the Purchaser of all product
service,  warranty and repair  obligations  associated  with the Inventory  (the
"Assumed Liabilities").

                           (ii)  Skatron  Instruments,  Inc.  will  execute  and
deliver to the  Purchaser  a Bill of Sale in the form of  Exhibit C,  conveying,
selling,  transferring  and  assigning to the  Purchaser the inventory and other
assets identified and listed on Schedule 1 thereto (the "Inventory");

                           (iii)  The   Purchaser   will   deliver   to  Skatron
Instruments,  Inc. a  promissory  note in the  principal  amount of Six  Hundred
Twelve  Thousand  United States Dollars  (US$612,000)]  made in favor of Skatron
Instruments,  Inc.,  in  consideration  for  the  Accounts  Receivable  and  the
Inventory;

                           In  connection  with  the  payment  in  full  of  the
                           intercompany debt owed by Skatron  Instruments,  Inc.
                           to Skatron as of the Closing Date:

                           (iv) Skatron Instruments, Inc. will assign to Skatron
the promissory note received from the Purchaser pursuant to Section  1.3(b)(iii)
and deliver the same to Skatron in full  satisfaction of the  intercompany  debt
Skatron Instruments, Inc. to Skatron in the same amount;

                           (v)  Skatron  will  execute  and  deliver  to Skatron
Instruments,  Inc. a document acknowledging payment in full of such intercompany
debt;

                           In connection with sale of one hundred percent (100%)
                           of the stock of Skatron Instruments,  Inc. by Skatron
                           to Helge Skare:

                           (vi)  Skatron  will  deliver  to  Helge  Skare  stock
certificate(s)  representing  one  hundred  percent  (100%)  of the  issued  and
outstanding stock of Skatron Instruments, Inc., duly endorsed (or accompanied by
duly  executed  stock  powers)  sufficient  to  transfer  legal  and  beneficial
ownership of such shares to Helge Skare at the Closing;

                           (vii) Helge Skare will pay Skatron an amount equal to
one  Norwegian  Krone  (NOK 1) in  consideration  for the sale of the  shares of
Skatron   Instruments,   Inc.  as  contemplated   by  this   Agreement;

                           (viii) [intentionally omitted]

                           In   connection   with  the   sale  of  one   hundred
                           percent(100%)  of the stock of Skatron by the Selling
                           Stockholders to the Purchaser:

                                       3.
<PAGE>

                           (ix) the  Selling  Stockholders  will  deliver to the
Purchaser  the stock  certificates  representing  the Shares,  constituting  one
hundred percent of the issued and outstanding shares of Skatron and comprised of
228,000  "A-shares" and 86,400  "B-shares,"  each such certificate duly endorsed
(or accompanied by duly executed stock powers)  sufficient to transfer legal and
beneficial ownership of the Shares to the Purchaser at Closing;

                           (x) the Purchaser  shall pay the Cash Share  Purchase
Price to the Selling  Stockholders as contemplated by Section 1.2(b),  and shall
deposit the Escrow Amount with the Escrow Agent pursuant to the  Indemnification
Escrow Agreement as contemplated by Section 1.2(c);

                           (xi) the  parties  will  execute  and deliver to each
other  the  Indemnification  Escrow  Agreement  in the form of  Exhibit  D, duly
executed by the Escrow Agent;

                           (xii) the Selling  Stockholders  will  deliver to the
Purchaser an opinion of counsel in a form  reasonably  acceptable  to counsel to
Purchaser;

                           (xiii) the Selling  Stockholders  will deliver to the
Purchaser  resignations of each director and officer of Skatron  resigning their
positions, effective as of the Closing Date;

                           (xiv)   immediately   following   the  Closing,   the
shareholder of Skatron will conduct an  extraordinary  stockholder's  meeting to
accept  the  resignations  of the  members of the board of  directors  delivered
pursuant to Section  1.3(b)(vii) and elect new members of the board of directors
in their place;

                           (xv)   immediately    following   the   extraordinary
stockholder's meeting pursuant to Section  1.3(b)(viii),  the board of directors
of  Skatron  will meet and (A) elect a  chairman  of the  board,  (B) accept the
resignations of the officers delivered pursuant to Section 1.3(b)(vii),  and (C)
appoint new officers to serve in their place;

                           In connection with other related transactions between
                           certain of the parties to this Agreement:

                           (xvi) Skatron will pay in full the  aggregate  amount
of all debt owed by Skatron to Helge Skare, by delivery of immediately available
funds at Closing; and

                           (xvii)  Helge  Skare will  execute and deliver to the
Purchaser a Consulting Agreement in the form of Exhibit F;

         1.4 Noncompetition,  Confidentiality,  etc. In consideration for and as
an inducement to the Purchaser to enter into the  transactions  contemplated  by
this Agreement, Helge Skare covenants and agrees as follows:

                  (a) For a period ending five (5) years after the Closing Date,
he shall not engage in any  activity  which  Competes  with the  Business of the
Purchaser or any of its affiliates,  provided,  however,  that it shall not be a
breach of the  covenant  contained  in this  Section 1.4 if: (i) he purchases or
otherwise  acquires up to two percent (2%) of the  outstanding  capital stock of
any publicly traded Competing  Entity; or (ii) renders services to any Competing
Entity  if the  services  rendered,  or his  primary  responsibilities  to  such
Competing Entity, do not relate to any activities of such Competing Entity which
compete with the Business of the Purchaser or any of its affiliates.

                                       4.
<PAGE>

                  (b) For a period ending five (5) years after the Closing Date,
he agrees not to interfere  with the Business of the Purchaser  by,  directly or
indirectly, either for himself or any other person (i) soliciting, attempting to
solicit,  inducing,  or  otherwise  causing  any  employee of the  Purchaser  to
terminate his or her employment in order to become an employee,  consultant,  or
independent  contractor  to or for him or any  third  party;  (ii)  inducing  or
attempting  to  induce  any  customer,   client,  vendor,  supplier,   licensee,
distributor  or  business  relation  thereof to cease  doing  business  with the
Purchaser or any  Affiliate;  or (iii)  soliciting the business of any customer,
client, vendor, or distributor of the Purchaser or any Affiliate, whether or not
the  Purchaser  or any  Affiliate  had personal  contact with such person,  with
respect to  products  or  activities  which  compete  with the  Business  of the
Purchaser  or any  Affiliate.  He agrees  that this  restriction  is  reasonably
necessary  to  protect  the  Purchaser's  legitimate  business  interest  in its
substantial relationships with employees, specific customers and others referred
to above, and its valuable confidential business information.

                  (c) He acknowledges (i) that the Business of the Purchaser and
its affiliates is  international in scope;  (ii) that Competing  Entities are or
could be located in any part of the world; (iii) that the Purchaser has required
that he make the  covenants  set forth in this Section 1.4 as a condition to its
purchase of the Shares owned by him;  (iv) that the  provisions  of this Section
1.4 are  reasonable  and  necessary  to protect  and  preserve  the  Purchaser's
business,   (v)  that  the  Purchaser  would  be  irreparably   damaged  if  the
Noncompeting  Party were to breach the  covenants set forth in this Section 1.4,
and (vi) in the  event of any such  breach,  the  Company  will be  entitled  to
injunctive  relief in  addition  to any other  remedies it may have at law or in
equity.

                  (d) He acknowledges and agrees that he has stood in a position
of trust and confidence with respect to Skatron prior to the date hereof and has
gained knowledge concerning Confidential  Information belonging to the Purchaser
and its affiliates. He acknowledges and agrees that all Confidential Information
known or  obtained  by him,  whether  before  or after the date  hereof,  is the
property of the Purchaser or one of the Affiliates of the  Purchaser.  He agrees
that he will not, at any time,  disclose to any unauthorized  persons or use for
his  own  account  or for  the  benefit  of any  third  party  any  Confidential
Information,  whether or not embodied in writing or other physical form, without
the prior written  consent of the  Purchaser,  unless and to the extent that the
Confidential  Information is or becomes generally known to and available for use
by the  public  other  than as a result  of his  fault or the fault of any other
person bound by a duty of confidentiality to the Purchaser. He agrees to deliver
to the  Purchaser at the time of execution of this  Agreement,  and at any other
time the Purchaser or any Affiliate of the Purchaser may request, all documents,
memoranda,  notes, plans,  records,  reports, and other  documentation,  models,
components,  devices,  or computer  software,  whether  embodied in a disk or in
other form (and all copies of all of the foregoing), relating to the businesses,
operations,  or  affairs  of the  Purchaser  and its  Affiliates  which  contain
Confidential Information and any other Confidential Information that he may then
possess or have under his control.

SECTION 2.   REPRESENTATIONS AND WARRANTIES OF THE PRINCIPAL STOCKHOLDERS.

                  Except as disclosed in the Disclosure  Schedule under a "Part"
corresponding  to the  subsection  of this  Section 2 to which an  exception  is
taken, the Principal  Stockholders  jointly and severally represent and warrant,
to and for the benefit of the Indemnitees,  as of the date of this Agreement, as
follows:

         2.1 Due Organization; No Subsidiaries; Etc.

                  (a) Skatron is a Norwegian  company duly organized and validly
existing under the laws of Norway and has all necessary power and authority: (i)
to conduct its business in the manner in

                                       5.
<PAGE>

which its business is currently being conducted;  (ii) to own and use its assets
in the  manner in which its assets are  currently  owned and used;  and (iii) to
perform its obligations under all Skatron Contracts.

                  (b) As of the Closing Date, Skatron has no subsidiaries except
for Skatron  Instruments,  Inc,  and Skatron has never  owned,  beneficially  or
otherwise, any shares or other securities of, or any direct or indirect interest
of any nature in, any Entity  other than Skatron  Instruments,  Inc.

         2.2 Charter Documents; Records.

                  (a) Skatron has  delivered to the  Purchaser  (i) accurate and
materially complete copies of Skatron's charter documents and bylaws,  including
all amendments  thereto;  (ii) accurate and complete copies of the current stock
records of Skatron  covering the years 1996,  1997 and 1998;  and (iii) accurate
and materially  complete copies of the minutes and other records of the meetings
and other  proceedings  for the years 1996, 1997 and 1998 (including any actions
taken by written consent or otherwise  without a meeting) of the stockholders of
Skatron,  the board of directors of Skatron and all  committees  of the board of
directors of Skatron.  There have been no official meetings or other proceedings
of the  stockholders  of  Skatron,  the board of  directors  of  Skatron  or any
committee of the board of  directors of Skatron that are not fully  reflected in
such minutes or other records.

                  (b) There has not been any violation of any of the  provisions
of  Skatron's  charter  documents  or bylaws  or of any  resolution  adopted  by
Skatron's  stockholders,  Skatron's  board  of  directors  or any  committee  of
Skatron's  board of directors;  and no event has  occurred,  and no condition or
circumstance  exists,  that  might  (with or  without  notice  or lapse of time)
constitute or result directly or indirectly in such a violation, the consequence
of which would constitute a Material Adverse Effect.

                  (c) The books of  account,  stock  records,  minute  books and
other records of Skatron are accurate,  up-to-date  and complete,  and have been
maintained  in  accordance  with  applicable  Legal  Requirements  and customary
business practices.

         2.3 Capitalization, Etc.

                  (a) The  authorized  share capital of Skatron  consists of NOK
3,144,000,  with 314,400 shares issued and outstanding,  constituting all of the
Shares.  The Selling  Stockholders  have,  and the Purchaser will acquire at the
Closing,  good and valid title to the Shares free and clear of any Encumbrances.
Of the Shares,  the following  individuals own,  beneficially and of record, the
number of shares,  constituting the percentage of the total number of issued and
outstanding shares, set forth next to each of their names:

                                      "A-Shares"       "B-Shares"        Percent
                                      ----------       ----------        -------
Helge Skare                             114,000          39,200            48.8%
Wiel Skare                               82,560          39,200            38.7%
Steinar Faanes                           31,440            --              10.0%
Sten Skare                                 --             8,000             2.5%
                                        -------          ------           ------
TOTAL                                   228,000          86,400           100.0%

                  (b) All of the  Shares  (i)  have  been  duly  authorized  and
validly  issued,  (ii) are fully  paid and  non-assessable,  and (iii) have been
issued  in full  compliance  with  all  applicable  securities  laws  and  other
applicable  Legal  Requirements.   There  are  no  options,   warrants,   rights
outstanding,  agreements  or  contracts  that  could  obligate  Skatron to issue
additional  shares of the capital  stock or other  securities  of

                                       6.
<PAGE>

Skatron.  The Selling  Stockholders have delivered to the Purchaser accurate and
complete copies of the stock certificates evidencing the Shares.

         2.4  Financial  Statements.  Skatron has delivered to the Purchaser the
following financial statements and notes  (collectively,  the "Skatron Financial
Statements"),  all of which are accurate and complete in all material  respects,
present  fairly the  consolidated  financial  position  of Skatron  and  Skatron
Instruments,  Inc.  as of their  respective  dates and for the  periods  covered
thereby,  and have been prepared in accordance with GAAP applied on a consistent
basis throughout the periods covered:

                  (a) the  audited  consolidated  balance  sheets of Skatron and
Skatron Instruments, Inc. as of December 31, 1997 and December 31, 1998, and the
related audited consolidated statements of operations,  changes in stockholders'
equity and cash flows of Skatron  for the years then  ended,  together  with the
notes thereto and the unqualified  report and  certification of Ernst & Young AS
relating thereto; and

                  (b) the unaudited balance sheets of Skatron Instruments,  Inc.
as of  December  31,  1997  and  December  31,  1998,  and the  related  audited
statements  of  operations,  changes in  stockholders'  equity and cash flows of
Skatron Instruments, Inc. for the years then ended, as reviewed by Yount, Hyde &
Barbour,  P.C.  for the year 1998 and by Jim  Downes  for the year  1997;

         2.5  Absence  of  Changes.  Except  as set  forth  in  Part  2.5 of the
Disclosure Schedule, since December 31, 1998:

                  (a)  there  has not  been  any  adverse  change  in  Skatron's
business, condition, assets, liabilities,  operations,  financial performance or
net income (or in any aspect or portion thereof), and no event has occurred that
might  have  an  adverse  effect  on  Skatron's  business,   condition,  assets,
liabilities,  operations,  financial performance or net income (or on any aspect
or portion  thereof),  the  consequence  of which  would  constitute  a Material
Adverse Effect;

                  (b) there has not been any loss,  damage or destruction to, or
any  interruption in the use of, any of Skatron's assets (whether or not covered
by insurance), which would constitute a Material Adverse Effect;

                  (c) Skatron has not (i) declared,  accrued,  set aside or paid
any dividend or made any other  distribution in respect of any shares of capital
stock,  or (ii)  repurchased,  redeemed or  otherwise  reacquired  any shares of
capital stock or other securities;

                  (d)  Skatron  has not sold or  otherwise  issued any shares of
capital stock or any other securities;

                  (e) Skatron has not amended its charter  documents and has not
effected  or  been a party  to any  Acquisition  Transaction,  recapitalization,
reclassification  of  shares,  stock  split,  reverse  stock  split  or  similar
transaction;

                  (f) Skatron has not purchased or otherwise  acquired any asset
from any other  Person,  except for assets  acquired by Skatron in the  Ordinary
Course of  Business,  and has not Skatron  has not leased or licensed  any asset
from any other Person  except for leases of office  equipment  and similar items
involving less than an amount equal to US$10,000 in the aggregate.

                  (g) Skatron has not made any capital expenditures in excess of
an amount equal to US$10,000 in the aggregate.

                                       7.
<PAGE>

                  (h) Skatron has not sold or otherwise transferred, and has not
leased or licensed,  any asset to any other Person  except for products  sold by
Skatron from its inventory in the Ordinary Course of Business;


                  (i)  Skatron  has  not  written  off  as   uncollectible,   or
established any extraordinary reserve with respect to, any account receivable or
other indebtedness;

                  (j) Skatron has not pledged or hypothecated  any of its assets
or otherwise permitted any of its assets to become subject to any Encumbrance;

                  (k)  Skatron  has not made any loan or  advance  to any  other
Person  except for the  extension  of credit to its  customers  in the  Ordinary
Course of Business;

                  (l) Skatron has not (i)  established  or adopted any  Employee
Benefit Plan, (ii) paid any bonus or made any  profit-sharing or similar payment
to, or increased the amount of the wages, salary,  commissions,  fringe benefits
or other compensation or remuneration payable to, any of its directors, officers
or employees,  or (iii)  otherwise  paid any amounts to any Person other than in
the Ordinary Course of Business.

                  (m) Skatron has not entered into, and neither  Skatron nor any
of the assets owned or used by Skatron has become bound by, any Contract that is
not an Excluded Contract;

                  (n) no Contract by which Skatron or any of the assets owned or
used by Skatron is or was bound, or under which Skatron has or had any rights or
interest, has been amended or terminated other than by its terms;

                  (o)  Skatron has not  incurred,  assumed or  otherwise  become
subject to any Liability,  other than accounts  payable (of the type required to
be reflected as current  liabilities  in the  "liabilities"  column of a balance
sheet prepared in accordance with GAAP) or other liabilities incurred by Skatron
in the Ordinary Course of Business;

                  (p) Skatron has not discharged  any  Encumbrance or discharged
or paid any  indebtedness or other  Liability,  except for (i) accounts  payable
that are reflected as current  liabilities  in the  "liabilities"  column of the
Skatron Financial Statements or have been incurred by Skatron since December 31,
1998 in the  Ordinary  Course  of  Business,  and  (ii)  those  that  have  been
discharged or paid in the Ordinary Course of Business;

                  (q) Skatron has not forgiven any debt or otherwise released or
waived any right or claim;

                  (r) Skatron  has not changed any of its methods of  accounting
or accounting practices in any material respect;

                  (s) Skatron has not entered into any  transaction or taken any
other action outside the Ordinary Course of Business; and

                  (t) Skatron has not agreed,  committed  or offered (in writing
or otherwise),  and has not attempted, to take any of the actions referred to in
clauses "(c)" through "(s)" above.

                                       8.
<PAGE>

         2.6 Assets.

                  (a) Skatron owns, and has good, valid and marketable title to,
all assets  purported  to be owned by it.  Part 2.6 of the  Disclosure  Schedule
identifies (i) all assets having a book value equal to US$5,000 or more that are
owned or by Skatron,  and (ii) all assets  that are being  leased or licensed to
Skatron.  Except as set forth in Part 2.6 of the Disclosure Schedule, all of the
assets listed as owned by Skatron are owned free and clear of any Encumbrances.

                  (b) Each item of equipment,  furniture, fixtures, improvements
and other tangible assets identified or required to be identified in Part 2.6 of
the Disclosure  Schedule is structurally sound, free of defects and deficiencies
and in good condition and repair (ordinary wear and tear excepted),  complies in
all material  respects  with, is being  operated and otherwise  used in material
compliance with, all applicable Legal Requirements, and is adequate for the uses
to which it is being put.

         2.7 Bank Accounts.  Part 2.7 of the Disclosure Schedule accurately sets
forth, with respect to each account  maintained by or for the benefit of Skatron
at any bank or other  financial  institution:  (a) the name and  location of the
institution  at which  such  account is  maintained;  (b) the name in which such
account is maintained and the account number of such account;  (c) a description
of such account and the purpose for which such account is used;  (d) the current
balance in such account;  (e) the rate of interest  being earned on the funds in
such account; and (f) the names of all individuals authorized to draw on or make
withdrawals  from such  account.  There  are no safe  deposit  boxes or  similar
arrangements maintained by or for the benefit of Skatron.

         2.8 Receivables; Major Customers.

                  (a) Part 2.8 of the Disclosure  Schedule  provides an accurate
and complete  breakdown and aging of all accounts  receivable,  notes receivable
and  other  receivables  of  Skatron  as of  April  12,  1999,  and  of  Skatron
Instruments, Inc. as of March 31, 1998.

                  (b)  Except  as set  forth  in  Part  2.8  of  the  Disclosure
Schedule,  all notes and  accounts  receivable  shown on the  Skatron  Financial
Statements  arose in the Ordinary  Course of Business and have been collected or
are collectible in the book amounts thereof, less an amount not in excess of the
allowance  for  doubtful  accounts  provided for in such  Financial  Statements.
Allowances for doubtful accounts and warranty returns are adequate and have been
prepared in accordance with GAAP consistently applied and in accordance with the
past  practices  of  Skatron.   All  of  the  Accounts   Receivable  of  Skatron
Instruments,  Inc.  assigned  to  the  Purchaser  pursuant  to  the  transaction
contemplated  by Section  1.1(a)  arose in the  Ordinary  Course of Business are
collectible in the aggregate amount of US$180,749.19. None of the receivables of
Skatron, and none of the Accounts  Receivable,  is subject to any material claim
of offset,  recoupment,  setoff or counterclaim  and the Principal  Stockholders
have no Knowledge of any specific facts or  circumstances  (whether  asserted or
unasserted)  that  could  give rise to any such  claim.  No  material  amount of
receivables  is  contingent  upon the  performance  by  Skatron  (in the case of
Skatron's accounts receivable) or Skatron Instruments,  Inc. (in the case of the
Accounts  Receivable) of any  obligation or contract other than normal  warranty
repair  and  replacement  in  amounts  specified  in Part 2.8 of the  Disclosure
Schedule.  Except as disclosed in Part 2.8 of the Disclosure  Schedule,  none of
those accounts and notes receivable are due from any Person or Entity related by
ownership or otherwise to Skatron.

                  (c) Part 2.8 of the Disclosure Schedule accurately identifies,
and provides,  for the years 1997 and 1998,  an accurate and complete  breakdown
of: (i) the revenues  received by Skatron  from each  customer or other Person ,
and (ii) the  revenues  received  by  Skatron  Instruments,  Inc.  in respect of
substantially all products and each state of the United States.  Skatron has not
received any notice or other

                                       9.
<PAGE>

communication  (in  writing  or  otherwise),  and has  not  received  any  other
information, indicating that any customer or other Person identified in Part 2.8
of the  Disclosure  Schedule may cease  dealing  with  Skatron or may  otherwise
reduce the volume of  business  transacted  by such Person  with  Skatron  below
historical levels.

         2.9 Inventory.

                  (a) Except as set forth  therein,  Part 2.9 of the  Disclosure
Schedule provides a breakdown of all inventory (including raw materials, work in
process and finished goods) of Skatron as of December 31, 1998, that is accurate
and  complete in all material  respects.  All of  Skatron's  existing  inventory
(including all inventory that is reflected on the Skatron  Financial  Statements
and that has not been disposed of by Skatron since December 31, 1995) and all of
the Inventory sold by Skatron Instruments,  Inc. to the Purchaser hereunder: (a)
is of such  quality and  quantity as to be usable and  saleable in the  Ordinary
Course of  Business;  (b) has been  priced at the lower of cost or market  value
using the "first-in,  first-out" method; (c) is free of any Encumbrance; and (d)
is free of any defect or  deficiency  except where any such defect or deficiency
is adequately covered by applicable warranties from third-party suppliers of the
same.

                  (b)  The  inventory  levels  maintained  by  Skatron  are  not
excessive in light of Skatron's normal operating requirements,  and are adequate
for the conduct of Skatron's operations in the Ordinary Course of Business.

                  (c) The Inventory has a book value of US$342,931.89.

         2.10  Real  Property.  Skatron  does not own any real  property  or any
interest in real  property,  except for the  leaseholds  created  under the real
property leases identified in Part 2.10 of the Disclosure Schedule. Part 2.10 of
the  Disclosure  Schedule  provides an accurate and complete  description of the
premises  covered by said leases and the  facilities  located on such  premises.
Skatron enjoys peaceful and undisturbed possession of such premises.

         2.11 Proprietary  Assets. Part 2.11 of the Disclosure Schedule provides
an accurate and complete description of all Proprietary Assets that are owned by
or licensed to Skatron or that are otherwise  used or useful in connection  with
Skatron's business.  Skatron is not infringing,  and neither Skatron nor Skatron
Instruments,  Inc.  has at any time  infringed  or received  any notice or other
communication  (in writing or  otherwise)  of any actual,  alleged,  possible or
potential  infringement  of, any  Proprietary  Asset  owned or used by any other
Person. To the best of the Knowledge of Skatron and the Selling Stockholders, no
other Person is infringing,  and no Proprietary Asset owned or used by any other
Person  infringes  or conflicts  with,  any  Proprietary  Asset owned or used by
Skatron.  The  Proprietary  Assets  identified  in Part  2.11 of the  Disclosure
Schedule constitute all of the Proprietary Assets necessary to enable Skatron to
conduct its  business in the manner in which its  business  is  currently  being
conducted. Skatron Instruments, Inc. has no rights or proprietary interest in or
to the name  "Skatron"  or any trade mark,  trade name,  or service mark or name
including the name "Skatron."

         2.12 Contracts.

                  (a)  Part  2.12  of the  Disclosure  Schedule  identifies  and
provides an accurate and complete  description of each Skatron Contract,  except
for any Excluded  Contract.  Skatron has delivered to the Purchaser accurate and
complete  copies  of all  Skatron  Contracts  identified  in  Part  2.12  of the
Disclosure Schedule, including all amendments thereto.

                                      10.
<PAGE>

                  (b) Each  Skatron  Contract  is valid  and in full  force  and
effect,  and is enforceable by Skatron in accordance with its terms. To the best
of the  Knowledge  of the  Principal  Stockholders,  each Person  against  which
Skatron has or may acquire any rights under any Skatron  Contract is solvent and
is able to satisfy all of such Person's current and future monetary  obligations
and other obligations and Liabilities to Skatron. No Person is renegotiating, or
has the right to  renegotiate,  any amount paid or payable to Skatron  under any
Skatron Contract or any other material term or provision of any Skatron Contract
unless specified in the contract.

                  (c)  Except  as set  forth  in  Part  2.12  of the  Disclosure
Schedule,  (i) no Person has  materially  violated or  breached,  or declared or
committed any default under, any Skatron  Contract;  (ii) no event has occurred,
and no circumstance or condition  exists,  that might (with or without notice or
lapse of time)  (A)  result  in a  material  violation  or  breach of any of the
provisions of any Skatron  Contract,  (B) give any Person the right to declare a
default or exercise any remedy under any Skatron  Contract,  (C) give any Person
the right to accelerate the maturity or performance of any Skatron Contract,  or
(D) give any  Person  the  right to  cancel,  terminate  or modify  any  Skatron
Contract;  (iii)  none  of the  Companies  has  received  any  notice  or  other
communication (in writing or otherwise) regarding any actual, alleged,  possible
or potential violation or breach of, or default under, any Skatron Contract; and
(iv) Skatron has not waived any material rights under any Skatron Contract.

                  (d) Any agreement,  contract or understanding  between Skatron
and Camo Ltd. in  connection  with the  distribution  or sale of any products or
services of Skatron in the United  Kingdom  terminates  on its terms on June 30,
1999  without any  further  action or notice  required  of  Skatron,  and may be
terminated  upon no less than ninety (90) days'  notice  delivered  to Camo Ltd.
without liability to Skatron.

         2.13 Liabilities.

                  (a) Skatron has no  Liabilities,  except for: (i)  liabilities
identified  as  such  in  the  "liabilities"  column  of the  Skatron  Financial
Statements;  (ii)  liabilities  incurred  by Skatron in the  Ordinary  Course of
Business  since  December 31, 1998; and (iii)  Skatron's  obligations  under the
Contracts  listed in Part 2.13 of the  Disclosure  Schedule  and under  Excluded
Contracts, to the extent that the existence of such obligations is ascertainable
solely by reference to such Contracts.

                  (b)  Part  2.13  of  the   Disclosure   Schedule  sets  forth,
accurately  and  completely,  (i) a list of  Skatron's  accounts  payable  as of
December 31, 1998; (ii) a list of all customer  deposits and other deposits held
by  Skatron  as of the date of this  Agreement;  and  (iii) a list of  Skatron's
long-term debt as of the date of this Agreement.

                  (c) Skatron has no debt to any Related  Party  except for debt
to Helge Skare in the amount of NOK 1,369,861, and no debt to any other parties,
other than (i) short-term  debt payable in full within one year from the date of
this Agreement, and (ii) a debt to Christiania Bank og Kreditkasse in the amount
not exceeding US$100,000.


         2.14 Compliance With Legal Requirements.

                  (a)  Except  as set  forth  in  Part  2.14  of the  Disclosure
Schedule,  Skatron is in full  compliance  with each Legal  Requirement  that is
applicable  to it or to the conduct of its  business or the  ownership or use of
any of its  assets;  and Skatron has not  received,  at any time,  any notice or
other  communication (in writing or otherwise) from any Governmental Body or any
other Person regarding (A) any actual, alleged,  possible or potential violation
of,  or  failure  to comply  with,  any Legal  Requirement,  or (B) any  actual,
alleged,  possible or potential  obligation on the part of Skatron to

                                      11.
<PAGE>

undertake,  or to bear all or any  portion  of the cost of,  any  cleanup or any
remedial,  corrective or response action of any nature, except where the failure
to be in full  compliance with such Legal  Requirements,  individually or in the
aggregate, would not constitute a Material Adverse Effect.

         2.15 Governmental Authorizations.

                  (a) Part 2.15 of the Disclosure Schedule identifies:  (i) each
material Governmental Authorization that is held by Skatron; and (ii) each other
Governmental Authorization that, to the best of the Knowledge of Skatron and the
Selling  Stockholders,  is held by any of  Skatron's  employees  and  relates to
Skatron's business. Skatron has delivered to the Purchaser accurate and complete
copies of all of the Governmental  Authorizations identified in Part 2.15 of the
Disclosure Schedule,  including all renewals thereof and all amendments thereto.
Each Governmental  Authorization identified or required to be identified in Part
2.15 of the  Disclosure  Schedule is valid and in full force and effect,  except
for such failures which, individually or in the aggregate,  would not constitute
a Material Adverse Effect.

                  (b)  Except  as set  forth  in  Part  2.15  of the  Disclosure
Schedule, and except for such failures which,  individually or in the aggregate,
would not constitute a Material  Adverse  Effect:  (i) Skatron and its employees
are  in  full  compliance  with  all of  the  terms  and  requirements  of  each
Governmental  Authorization identified or required to be identified in Part 2.15
of the Disclosure Schedule;  and (ii) no event has occurred, and no condition or
circumstance  exists,  that might (with or without  notice or lapse of time) (A)
constitute  or result  directly or  indirectly in a violation of or a failure to
comply with any term or requirement of any Governmental Authorization identified
or required to be identified  in Part 2.15 of the  Disclosure  Schedule,  or (B)
result  directly  or  indirectly  in  the  revocation,  withdrawal,  suspension,
cancellation,  termination or  modification  of any  Governmental  Authorization
identified or required to be identified in Part 2.15 of the Disclosure Schedule.

         2.16 Employee and Labor Matters.

                  (a)  Part  2.16 of the  Disclosure  Schedule  accurately  sets
forth,  with  respect to each  employee of Skatron  (including  any  employee of
Skatron who is on a leave of absence or on layoff status): (i) the name, date of
birth and the date as of which such employee was originally  hired by Skatron or
any  predecessor  Entity of  Skatron;  (ii)  such  employee's  title;  (iii) the
aggregate  amount of the compensation  (including  wages,  salary,  commissions,
director's fees,  fringe benefits,  bonuses,  profit-sharing  payments and other
payments or benefits of any type)  received by such  employee  from Skatron with
respect to services  performed in Skatron 's most recent fiscal year;  (iv) such
employee's  annualized  compensation as of the date of this  Agreement;  and (v)
each  Benefit  Plan in  which  such  employee  participates  or is  eligible  to
participate.

                  (b)  Except  as set  forth  in  Part  2.16  of the  Disclosure
Schedule, Skatron is not a party to or bound by, and Skatron has not ever been a
party to or bound by (i) any employment agreement during the period 1995 through
the present,  or (ii) any union  contract,  collective  bargaining  agreement or
similar Contract.

                  (c) The employment of each of Skatron's employees subject only
to the requirements of the collective  bargaining  agreement  identified in Part
2.16 of the  Disclosure  Schedule and the  requirements  mandated by  applicable
laws. Skatron has delivered to the Purchaser accurate and complete copies of all
employee  manuals and handbooks,  disclosure  materials,  policy  statements and
other materials  relating to the employment of the current and former  employees
of Skatron.  Skatron has  complied at all times with  applicable  labor laws and
regulations  and  with  the  provisions  of  applicable   collective  bargaining
agreements.

                                      12.
<PAGE>

                  (d)  Except  as set  forth  in  Part  2.16  of the  Disclosure
Schedule,  Skatron is not engaged, and Skatron has not ever been engaged, in any
unfair labor  practice of any nature.  There has never been any  slowdown,  work
stoppage, labor dispute or union organizing activity, or any similar activity or
dispute,  affecting  Skatron or any of its employees.  There is not now pending,
and to the Knowledge of the Principal Stockholders,  no Person has threatened to
commence,  any such slowdown,  work stoppage,  labor dispute or union organizing
activity or any  similar  activity or  dispute.  No event has  occurred,  and no
condition or circumstance exists, that might directly or indirectly give rise to
or provide a basis for the  commencement  of any such  slowdown,  work stoppage,
labor dispute or union organizing activity or any similar activity or dispute.

         2.17 Benefit Plans. Part 2.18 of the Disclosure Schedule identifies and
provides an accurate  description of each Benefit Plan.  Skatron and the Selling
Stockholders have caused to be delivered to the Purchaser  accurate and complete
copies of all  documents  relating to each  Benefit  Plan.  Each Benefit Plan is
being and has at all times been  operated and  administered  in full  compliance
with the provisions thereof. Each contribution or other payment that is required
to have been  accrued or made under or with respect to any Benefit Plan has been
duly  accrued and made on a timely  basis.  Each  Benefit  Plan has at all times
complied  and  been  operated  and  administered  in full  compliance  with  all
applicable Legal Requirements.

         2.18 Tax Matters.

                  (a)  Except  as set  forth  in  Part  2.18  of the  Disclosure
Schedule,  each Tax required to have been paid,  or claimed by any  Governmental
Body to be payable,  by any of the Companies (whether pursuant to any Tax Return
or otherwise) has been duly paid in full or on a timely basis.  Any Tax required
to have  been  withheld  or  collected  by any of the  Companies  has been  duly
withheld and collected; and (to the extent required) each such Tax has been paid
to the appropriate Governmental Body.

                  (b) Part 2.18 of the Disclosure Schedule accurately identifies
all Tax  Returns  required  to be filed by or on behalf of any of the  Companies
with any  Governmental  Body with  respect to any  taxable  period  ending on or
before the Closing Date ("Skatron  Returns").  All Skatron Returns (i) have been
or will be filed when due, and (ii) have been, or will be when filed, accurately
and  completely   prepared  in  full  compliance   with  all  applicable   Legal
Requirements.  All amounts  shown on the Skatron  Returns to be due on or before
the Closing  Date,  and all amounts  otherwise  payable in  connection  with the
Skatron  Returns on or before the Closing Date,  have been or will be paid on or
before the Closing Date.  Skatron has  delivered to the  Purchaser  accurate and
complete copies of all Skatron Returns filed since December 31, 1995.

                  (c) The Skatron  Financial  Statements fully accrue all actual
and  contingent  liabilities  for Taxes with respect to all periods  through the
dates thereof in accordance with GAAP.  Skatron will establish,  in the Ordinary
Course of  Business,  reserves  adequate  for the  payment  of all Taxes for the
period from  December  31,  1995  through the  Closing  Date,  and Skatron  will
disclose the dollar  amount of such reserves to the Purchaser on or prior to the
Closing Date.

                  (d) Each Skatron Return relating to income Taxes that has been
filed with  respect to any period  ended on or prior to  December  31,  1995 has
either (i) been  examined and audited by all relevant  Governmental  Bodies,  or
(ii) by virtue of the expiration of the limitation period under applicable Legal
Requirements,  is no longer subject to examination or audit by any  Governmental
Body.  Part  2.18  of  the  Disclosure  Schedule   accurately   identifies  each
examination  or audit of any  Skatron  Return  that  has  been  conducted  since
December 31, 1988.  Skatron has delivered to the Purchaser accurate and complete
copies of all audit reports and similar  documents (to which Skatron has access)
relating to Skatron

                                      13.
<PAGE>

Returns.  Except  as set  forth  in Part  2.18 of the  Disclosure  Schedule,  no
extension or waiver of the  limitation  period  applicable to any of the Skatron
Returns has been granted (by any of the Companies or any other  Person),  and no
such extension or waiver has been requested from any of the Companies.

                  (e)  Except  as set  forth  in  Part  2.18  of the  Disclosure
Schedule, no claim or other Proceeding is pending or has been threatened against
or with  respect to any of the  Companies  in  respect of any Tax.  There are no
unsatisfied Liabilities for Taxes (including liabilities for interest, additions
to tax and penalties thereon and related expenses) with respect to any notice of
deficiency or similar document received by any of the Companies.

         2.19 Environmental Matters. Skatron is not liable or potentially liable
for any  response  cost or natural  resource  damages at or with  respect to any
site.  Skatron  has not ever  received  any  notice or other  communication  (in
writing or otherwise) from any  Governmental  Body or other Person regarding any
actual, alleged, possible or potential Liability arising from or relating to the
presence, generation, manufacture, production, transportation, importation, use,
treatment,  refinement,   processing,  handling,  storage,  discharge,  release,
emission or disposal of any Hazardous Material. No Person has ever commenced or,
to the  Knowledge  of the  Principal  Stockholder,  threatened  to commence  any
contribution  action or other Proceeding  against Skatron in connection with any
such  actual,  alleged,  possible  or  potential  Liability;  and no  event  has
occurred,  and no  condition  or  circumstance  exists,  that  may  directly  or
indirectly  give rise to, or result in  Skatron  becoming  subject  to, any such
Liability.

         2.20 Sale of Products; Performance of Services.

                  (a) Each product that has been sold by any of the Companies to
any  Person:  (i)  conformed  and  complied in all  respects  with the terms and
requirements  of  any  applicable  warranty  or  other  Contract  and  with  all
applicable  Legal  Requirements;  and  (ii)  was  free  of any  design  defects,
construction defects or other defects or deficiencies at the time of sale except
for those covered by warranty.  All repair services and other services that have
been performed by the Companies were performed  properly and in full  conformity
with the terms and requirements of all applicable warranties and other Contracts
and with all applicable Legal Requirements.

                  (b) Skatron will not incur or otherwise  become subject to any
Liability arising directly or indirectly from any product  manufactured or sold,
or any repair  services or other services  performed by, any of the Companies on
or at any time  prior to the  Closing  Date,  except to the  extent  covered  by
warranty.

                  (c) Except as listed in Part 2.20 of the Disclosure  Schedule,
no product  manufactured or sold by any of the Companies has been the subject of
any  recall  involving  more  than one unit of a similar  type or other  similar
action; and no event has occurred, and no condition or circumstance exists, that
might (with or without notice or lapse of time) directly or indirectly give rise
to or serve as a basis for any such recall or other similar  action  relating to
any such product.

                  (d) No customer or other  Person has ever  asserted or, to the
Knowledge of the Selling  Stockholders,  threatened  to assert any claim against
Skatron  or  Skatron  Instruments,  Inc.  (i) under or based  upon any  warranty
provided  by or on behalf of any of the  Companies,  or (ii) under or based upon
any other  warranty  relating to any product sold by any of the Companies or any
services  performed by either of them, other than those reflected in the service
records  maintained by the Companies in the Ordinary Course of Business.  To the
best of the  Knowledge  of Skatron  and the Selling  Stockholders,  no event has
occurred,  and no condition or circumstance  exists, that might (with or without
notice or lapse of time) directly or indirectly give rise to or serve as a basis
for the assertion of any such claim.

                                      14.
<PAGE>

         2.21 Insurance.  Part 2.21 of the Disclosure  Schedule  accurately sets
forth, with respect to each insurance policy maintained by or at the expense of,
or for the direct or indirect benefit of, Skatron and its Board of Directors and
Administrative Director. Each of such policies is valid, enforceable and in full
force and effect. All of the information contained in the applications submitted
in  connection  with said  policies  was (at the times  said  applications  were
submitted)  accurate and complete in all material respect,  and all premiums and
other amounts owing with respect to said policies have been paid in full or on a
timely basis. The nature,  scope and amounts of the insurance  coverage provided
by said policies are sufficient to adequately insure Skatron's business, assets,
operations, key employees, services and potential liabilities.

         2.22 Related  Party  Transactions.  Except as set forth in Part 2.22 of
the Disclosure  Schedule:  (a) no Related Party has, and no Related Party has at
any time since  December  31, 1996 had,  any direct or indirect  interest of any
nature in any asset used in or otherwise  relating to the business of any of the
Companies;  (b) no Related Party is, or has at any time since  December 31, 1996
been, indebted to any of the Companies;  (c) since December 31, 1994, no Related
Party has entered into, or has had any direct or indirect financial interest in,
any Contract, transaction or business dealing of any nature involving any of the
Companies;  (d) no Related Party is competing, or has at any time since December
31, 1994  competed,  directly or  indirectly,  with any of the  Companies in any
market  served by any of the  Companies;  (e) no Related  Party has any claim or
right  against  Skatron;  and (f) no event has  occurred,  and no  condition  or
circumstance  exists,  that  might  (with or  without  notice  or lapse of time)
directly or  indirectly  give rise to or serve as a basis for any claim or right
in favor of any Related Party against Skatron.

         2.23 Proceedings; Orders.

                  (a)  Except  as set  forth  in  Part  2.23  of the  Disclosure
Schedule, there is no pending Proceeding,  and to the Knowledge of the Principal
Stockholders,  no Person has  threatened  to commence any  Proceeding:  (i) that
involves Skatron or that otherwise relates to or might affect Skatron's business
or any of the assets  owned or used by Skatron  (whether or not Skatron is named
as a party  thereto);  or (ii) that  challenges,  or that may have the effect of
preventing,  delaying,  making illegal or otherwise interfering with, any of the
Transactions.  Except as set forth in Part 2.23 of the Disclosure  Schedule,  no
event has occurred,  and no claim,  dispute or other  condition or  circumstance
exists,  that might directly or indirectly  give rise to or serve as a basis for
the commencement of any such Proceeding.

                  (b) There is no Order to which  Skatron,  or any of the assets
owned or used by Skatron, is subject; and none of the Principal  Stockholders is
subject to any Order that relates to Skatron's  business or to any of the assets
owned or used by Skatron.

                  (c) To the best of the  Knowledge of Skatron and the Principal
Stockholders,  no  officer or  employee  of Skatron is subject to any Order that
prohibits  such officer or employee from engaging in or continuing  any conduct,
activity or practice relating to Skatron's business.

         2.24 Authority; Binding Nature of Agreements.

                  (a) Each of Skatron  and  Skatron  Instruments,  Inc.  has the
absolute  and  unrestricted  right,  power and  authority  to enter  into and to
perform its  respective  obligations  under this  Agreement;  and the execution,
delivery  and  performance  by Skatron  and  Skatron  Instruments,  Inc. of this
Agreement have been duly authorized by all necessary  action on the part of such
entity and its respective  stockholders,  board of directors and officers.  This
Agreement  constitutes  the legal,  valid and binding  obligation of Skatron and
Skatron  Instruments,  Inc.,  enforceable  against them in  accordance  with its
terms.

                                      15.
<PAGE>

                  (b) Each Selling Stockholder has the absolute and unrestricted
right,   power  and   capacity  to  enter  into  and  to  perform  such  Selling
Stockholder's  obligations under each of the  Transactional  Agreements to which
such Selling Stockholder is a party. This Agreement constitutes the legal, valid
and binding obligation of each of the Selling Stockholders,  enforceable against
each of the  Selling  Stockholders  in  accordance  with  its  terms.  Upon  the
execution of each of the other Transactional  Agreements at the Closing, each of
such other Transactional Agreements will constitute the legal, valid and binding
obligation  of each  Selling  Stockholder  who is a party  thereto,  and will be
enforceable against such Selling Stockholder in accordance with its terms.

         2.25 Non-Contravention;  Consents.  Except as set forth in Part 2.25 of
the  Disclosure  Schedule,  neither  the  execution  and  delivery of any of the
Transactional  Agreements,  nor the  consummation  or  performance of any of the
Transactions  contemplated  therein or thereby,  including  the payment to Helge
Skare of all debt owed to him by Skatron as of the Closing  Date,  will directly
or indirectly (with or without notice or lapse of time):

                  (a) contravene,  conflict with or result in a violation of (i)
any of the provisions of the certificate of  incorporation  or bylaws of Skatron
or  Skatron   Instruments,   Inc.,  or  (ii)  any  resolution   adopted  by  the
stockholders,  board of directors or any  committee of the board of directors of
Skatron or Skatron Instruments, Inc.;

                  (b) contravene,  conflict with or result in a violation of, or
give any  Governmental  Body or other Person the right to  challenge  any of the
Transactions  or to exercise  any remedy or obtain any relief  under,  any Legal
Requirement or any Order to which Skatron,  Skatron Instruments,  Inc. or any of
the Selling  Stockholders,  or any of the assets  owned or used by  Skatron,  is
subject, except where the same would not constitute a Material Adverse Effect;

                  (c) cause  Skatron,  the  Purchaser  or any  affiliate  of the
Purchaser to become  subject to, or to become liable for the payment of, any Tax
other than any Tax generally  applicable to the sale of the stock of a Norwegian
company to a foreign Person;

                  (d) [intentionally omitted]

                  (e) contravene,  conflict with or result in a violation of any
of the  terms or  requirements  of, or give any  Governmental  Body the right to
revoke,  withdraw,  suspend,  cancel,  terminate  or  modify,  any  Governmental
Authorization  that is held by Skatron or any of its employees or that otherwise
relates to Skatron's business or to any of the assets owned or used by Skatron;

                  (f)  contravene,  conflict  with or result in a  violation  or
breach of, or result in a default under, any provision of any Skatron Contract;

                  (g) give any  Person  the right to (i)  declare  a default  or
exercise any remedy under any Skatron Contract,  (ii) accelerate the maturity or
performance of any Skatron  Contract,  or (iii) cancel,  terminate or modify any
Skatron Contract;

                  (h)  contravene,  conflict  with or result in a  violation  or
breach of or a default  under any  provision of, or give any Person the right to
declare a default under,  any Contract to which any of the Selling  Stockholders
is a party or by which any of the Selling Stockholders is bound; or

                  (i) result in the  imposition  or creation of any  Encumbrance
upon or with  respect  to any asset  owned or used by  Skatron,  or upon or with
respect  to any  asset  sold  by  Skatron  Instruments,  Inc.  to the  Purchaser
hereunder.

                                      16.
<PAGE>

         Except as set forth in Part 2.25 of the  Disclosure  Schedule,  neither
Skatron nor any of the Selling  Stockholders was, is or will be required to make
any filing with or give any notice to, or to obtain any Consent from, any Person
in  connection  with the  execution  and  delivery  of any of the  Transactional
Agreements or the consummation or performance of any of the Transactions.

         2.26 Brokers.  Neither Skatron nor any of the Selling  Stockholders has
agreed or become  obligated to pay, or has taken any action that might result in
any Person  claiming  to be  entitled  to  receive,  any  brokerage  commission,
finder's  fee  or  similar  commission  or  fee in  connection  with  any of the
Transactions.

         2.27 Selling Stockholders.

                  (a) Each Selling  Stockholder  has the capacity and  financial
capability  to  comply  with  and  perform  all of  such  Selling  Stockholder's
covenants and obligations  under each of the  Transactional  Agreements to which
such Selling Stockholder is a party.

                  (b) No  Selling  Stockholder  has,  at any  time:  (i)  made a
general  assignment  for the  benefit of  creditors,  (ii)  filed,  or had filed
against such Selling  Stockholder,  any bankruptcy  petition or similar  filing,
(iii) suffered the attachment or other judicial  seizure of all or a substantial
portion of such Selling Stockholder's assets, (iv) been convicted of, or pleaded
guilty to, any  felony,  or (v) taken or been the subject of any action that may
have an adverse effect on such Selling  Stockholder's  ability to comply with or
perform any of such Selling Stockholder's  covenants or obligations under any of
the Transactional Agreements.

                  (c) No  Selling  Stockholder  is subject to any Order that may
have an adverse effect on such Selling  Stockholder's  ability to comply with or
perform any of such Selling Stockholder's  covenants or obligations under any of
the  Transactional  Agreements.  There  is no  Proceeding  pending,  and  to the
Knowledge of the Selling Stockholders,  no Person has threatened to commence any
Proceeding,  that may have an  adverse  effect  on the  ability  of any  Selling
Stockholder  to  comply  with  or  perform  any of  such  Selling  Stockholder's
covenants or obligations under any of the Transactional Agreements. No event has
occurred,  and no claim, dispute or other condition or circumstance exists, that
might  directly  or  indirectly  give  rise  to or  serve  as a  basis  for  the
commencement of any such Proceeding.

         2.28 Full Disclosure.

                  (a) None of the Transactional  Agreements  contains any untrue
statement of fact; and none of the  Transactional  Agreements omits to state any
fact  necessary  to  make  any  of  the  representations,  warranties  or  other
statements or information contained therein not misleading.

                  (b)  Except  as set  forth  in  Part  2.28  of the  Disclosure
Schedule,  there  is no fact  within  the  Knowledge  of  Skatron  or any of the
Principal  Stockholders (other than publicly known facts relating exclusively to
political  or  economic  matters of general  applicability  that will  adversely
affect all comparable  businesses)  that (i) may have an Material Adverse Effect
on Skatron or on the  ability of Skatron or any of the Selling  Stockholders  to
comply with or perform any covenant or obligation under any of the Transactional
Agreements, or (ii) may have the effect of preventing,  delaying, making illegal
or otherwise interfering with any of the Transactions.

                  (c)  All of  the  information  set  forth  in  the  Disclosure
Schedule,  and,  to the  Knowledge  of the  Principal  Stockholders,  all  other
information regarding Skatron and Skatron Instruments, Inc. (and their business,
condition,  assets, liabilities,  operations,  financial performance, net

                                      17.
<PAGE>

income and  prospects)  that has been  furnished to the  Purchaser or any of its
Representatives by or on behalf of Skatron or any of Skatron's  Representatives,
is accurate and complete in all material respects.

                  (d) Skatron and the Principal  Stockholders  have provided the
Purchaser and the Purchaser's  Representatives  with full and complete access to
all of  Skatron's  records and other  documents  and data and to all records and
other documents and data of Skatron Instruments, Inc.

SECTION 3. REPRESENTATIONS AND WARRANTIES OF THE PURCHASER AND SKATRON.

         3.1 The Purchaser  represents  and warrants,  to and for the benefit of
the Selling Stockholders, as of the date of this Agreement, as follows:

                  (a) Authority;  Binding Nature of Agreement. The Purchaser has
the  absolute  and  unrestricted  right,  power and  authority to enter into and
perform its  obligations  under this  Agreement,  the  execution,  delivery  and
performance of this  Agreement by the Purchaser has been duly  authorized by all
necessary  action on the part of the Purchaser  and its board of directors,  and
this  Agreement  constitutes  the legal,  valid and  binding  obligation  of the
Purchaser, enforceable against the Purchaser in accordance with its terms.

                  (b) Brokers.  The Purchaser has not agreed or become obligated
to pay, and has not taken any action that might result in any Person claiming to
be  entitled to  receive,  any  brokerage  commission,  finder's  fee or similar
commission or fee in connection with any of the Transactions.

         3.2 Neither  Skatron nor the  Purchaser  makes any  representations  or
warranties of any kind to Helge Skare with respect to Skatron Instruments, Inc.,
the shares of that entity sold to Helge Skare  pursuant to this  Agreement,  the
operations,  financial condition,  business or prospects of Skatron Instruments,
Inc., and any Liabilities which Skatron Instruments, Inc. may or may not have of
any type  whatsoever.  The sale of  Skatron  Instruments,  Inc.  to Helge  Skare
pursuant  to this  Agreement  is made on an "as is" basis  and by his  signature
hereto Helge Skare  acknowledges  that no  representations  or warranties of any
kind have been made to him with regard to the matters set forth in this  Section
3.2.

         3.3 Purchaser  agrees to continue to carry insurance for the benefit of
the Board of  Directors  and the  General  Manager of  Skatron,  on terms and in
amounts which are reasonable and customary under the circumstances, for at least
twenty-four (24) months after the Closing.


SECTION 4. POST-CLOSING COVENANTS.

         4.1  Transfer of GSA  Contract.  The parties  covenant and agree to use
commercially  reasonable  efforts (a) to assign that certain  agreement  between
Skatron Instruments,  Inc. and the United States Government Services Agency (the
"GSA  Contract") to the Purchaser  with the consent of each other party thereto,
or (b) otherwise to transfer to the  Purchaser  all of the rights,  benefits and
obligations of Skatron Instruments,  Inc. thereunder. Until such time as the GSA
Contract  is  assigned  to  Purchaser,  the  Purchaser  covenants  to prove such
information  to Skatron  Instruments,  Inc. as may be  necessary  to comply with
Skatron  Instruments  Inc.'s quarterly or other periodic  reporting  obligations
under that Contract.

SECTION 5. INDEMNIFICATION, ETC.

                                      18.
<PAGE>

         5.1 Survival of Representations and Covenants.

                  (a) The representations, warranties, covenants and obligations
of each party shall survive (without  limitation):  (i) the Closing and the sale
of the Accounts Receivable,  the Inventory and the Shares to the Purchaser; (ii)
any sale or other disposition of any or all of the Shares by the Purchaser;  and
(iii)  any  Acquisition  Transaction  effected  by or  otherwise  involving  the
Purchaser or Skatron.  All of said  representations,  warranties,  covenants and
obligations shall remain in full force and effect and shall survive for a period
of one year from the Closing  Date,  except for  representations  regarding  tax
matters,  employee benefits and environmental issues contained in Sections 2.17,
2.18 and 2.19, which  representations  and warranties shall survive for a period
of ten (10) years.

                  (b) For purposes of this  Agreement,  each  statement or other
item of information set forth in the Disclosure Schedule or in any update to the
Disclosure  Schedule shall be deemed to be a representation and warranty made by
the Principal Stockholders in this Agreement.

         5.2 Indemnification by Principal Stockholders.

                  (a) Subject to the survival  periods set forth in Section 5.1,
the  Principal  Stockholders,  jointly and  severally,  shall hold  harmless and
indemnify each of the  Indemnitees  from and against,  and shall  compensate and
reimburse  each of the  Indemnitees  for,  any  Damages  which are  directly  or
indirectly suffered or incurred by any of the Indemnitees or to which any of the
Indemnitees may otherwise  become subject at any time  (regardless of whether or
not such Damages  relate to any  third-party  claim) and which arise directly or
indirectly  from or as a direct  or  indirect  result  of,  or are  directly  or
indirectly  connected with and of the following,  or to any Proceeding  relating
directly  or  indirectly  to any  of the  following  (including  any  Proceeding
commenced by any Indemnitee for the purpose of enforcing any of its rights under
this Section 5):

                           (i) any Breach of any representation or warranty made
by Skatron or any of the Selling Stockholders in this Agreement;

                           (ii)  any  Breach  of any  representation,  warranty,
statement, information or provision contained in the Disclosure Schedule;

                           (iii) any Breach of any covenant or obligation of any
of the Selling Stockholders; or

                           (iv)  any  Tax  owed  by  Skatron  Instruments,  Inc.
relating to the period prior to the Closing Date.

         The Principal Stockholders acknowledge and agree that, if Skatron shall
suffer  any  Damages  as a result of any of the  matters  set  forth in  Section
5.2(a), then the Purchaser itself shall be deemed, by virtue of its ownership of
common stock of Skatron,  to have incurred Damages as a result thereof.  Nothing
contained  in this  Section  5.2(b)  shall have the effect of (i)  limiting  the
circumstances under which the Purchaser may otherwise be deemed to have incurred
Damages for purposes of this Agreement, (ii) limiting the other types of Damages
that the Purchaser may be deemed to have  incurred  (whether in connection  with
any such Breach or  Liability  or  otherwise),  or (iii)  limiting the rights of
Skatron or any of the other Indemnitees under this Section 5.2.

                                      19.
<PAGE>

         5.3 Threshold and Maximum Amount of Indemnification Obligation.

                  (a) Subject to Section 5.3(b), the Selling  Stockholders shall
not be required to make any indemnification  payment pursuant to Section 5.2 for
any Breach of any of their representations and warranties until such time as the
total amount of all Damages  (including the Damages arising from such Breach and
all other  Damages  arising from any other  Breaches of any  representations  or
warranties)  that have been directly or  indirectly  suffered or incurred by any
one or more of the  Indemnitees,  or to which any one or more of the Indemnitees
has or have otherwise become subject, exceeds $100,000 in the aggregate. At such
time as the total amount of such Damages exceeds $100,000 in the aggregate,  the
Indemnitees shall be entitled to be indemnified  against the full amount of such
Damages  (and not  merely  the  portion  of such  Damages  exceeding  $100,000),
provided, however, that the obligations of the Principal Stockholders to defend,
indemnify and hold harmless the  Indemnitees  shall  terminate  when the Selling
Stockholders  (and not only  the  Principal  Stockholders)  shall  have  paid an
aggregate of Seven Million  United States Dollars  (US$7,000,000)  in respect of
Damages under this Section 5.

                  (b)   The    limitation    on   the   Selling    Stockholders'
indemnification  obligations that is set forth in Section 5.3(a) shall not apply
to Damages arising from willful Breach or fraud.

         5.4 No Contribution.  Each Selling Stockholder waives, and acknowledges
and agrees that such Selling  Stockholder  shall not have and shall not exercise
or assert or attempt to exercise or assert,  any right of  contribution or right
of indemnity or any other right or remedy against Skatron in connection with any
indemnification  obligation  or  any  other  Liability  to  which  such  Selling
Stockholder  may become  subject  under any of the  Transactional  Agreements or
otherwise in connection with any of the Transactions.

         5.5 Setoff.  In  addition to any rights of setoff or other  rights that
the  Purchaser  or any of the  other  Indemnitees  may  have  at  common  law or
otherwise, the Purchaser shall have the right to set off the amount of any award
which may be  received  as a result of an  arbitration  proceeding  pursuant  to
Section 6.4 against any amount otherwise payable by any Indemnitee to any of the
Selling Stockholders.

         5.6  Exclusivity  of  Indemnification  Remedies.  Except in the case of
fraud or willful breach of any of the  representations,  warranties or covenants
of the  Principal  Stockholders,  and  except  in the case of any  breach of the
covenants  contained in Section 1.4 hereof,  the rights of the Indemnitees under
this Section 5 shall constitute their exclusive remedy in respect of any Damages
arising, directly or indirectly, from the matters set forth in Section 5.2(a).

         5.7 Defense of Third Party  Claims.  In this Section  5.7,  Indemnities
shall be  referred  to at times as the  "Indemnified  Parties"  or  "Indemnified
Party" and  Principal  Stockholders  shall be referred to at times herein as the
"Indemnifying  Party".  If a third party shall notify an Indemnified  Party with
respect to any matter  that may give rise to a claim for  indemnification  under
the indemnity set forth above, the procedure set forth below shall be followed.

                  (a)  Notice.   The   Indemnified   Party  shall  give  to  the
Indemnifying  Party written notice of any claim, suit,  judgment,  or matter for
which  indemnity may be sought  promptly,  but in any event within  fifteen (15)
days after the Indemnified  Party receives notice  thereof;  provided,  however,
that  failure  by  Indemnified  Party to give  such  notice  shall  not  relieve
Indemnifying  Party from any liability it shall  otherwise have pursuant to this
Agreement except to the extent Indemnifying Party is actually prejudiced by such
failure. Such notice shall set forth in reasonable detail (i) the basis for such
potential claim, (ii) the Sections of the Agreement  pursuant to which the claim
is made,  and  (iii) the  dollar  amount  of such  claim,  and shall be given in
accordance with Section 6.6 below.

                                      20.
<PAGE>

                  (b)  Defense of Claim.  The  Indemnified  Party shall have the
right to be  represented  by counsel  of its  choice and to defend or  otherwise
control the handling of any claim or Proceeding  for which  indemnity is sought.
Notwithstanding  the  foregoing,  the  Indemnifying  Party may elect (by written
notice within  fifteen (15) days after  receipt of written  notice under Section
5.9(a)) to assume the defense of or  otherwise  control the handling of any such
claim or  Proceeding  for which  indemnity is sought  subject to the  imitations
provided herein and, in the case of the Selling Shareholders, subject to the sum
of (x) the funds  remaining  in escrow  pursuant  to the  Escrow  Agreement  not
already reserved for resolution of other claims of  indemnification  and (y) any
other funds  placed in escrow  pursuant to an  agreement  in form and  substance
acceptable to the Indemnified  Party and payable to the Indemnified Party in the
event of any judgment or  settlement in respect of the claim or  Proceeding,  in
which case the  Indemnifying  Party  shall and hereby  does  indemnify  and hold
harmless  the   Indemnified   Party  from  and  against  any  and  all  Damages,
notwithstanding the fact that the Indemnifying party may not have been so liable
to the Indemnified  Party had the  Indemnifying  Party not elected to assume the
defense of or to otherwise  control the handling of such claim, suit judgment or
other matter.

         If the  Indemnifying  Party so elects to assume the defense of any such
claim or Proceeding:

                           (i) The  Indemnifying  Party shall  proceed to defend
such  claim  or  Proceeding  in  a  diligent  manner  with  counsel   reasonably
satisfactory  to the  Indemnified  Party,  it being agreed that for  proceedings
conducted in the United  States,  the firm of Wilson  Sonsini  Goodrich & Rosati
P.C., and for proceedings conducted in Norway, the firm of Wiersholm Mellbye and
Bech, are satisfactory to the Indemnified Parties;

                           (ii) the  Indemnified  Party shall make  available to
the  Indemnifying  Party any documents  and  materials in the  possession of the
Indemnified  party  that  may be  necessary  to the  defense  of such  claim  or
Proceeding;

                           (iii)  the   Indemnifying   party   shall   keep  the
Indemnified  Party informed of all material  developments and events relating to
such claim or Proceeding;

                           (iv) the  Indemnified  Party  shall have the right to
participate in the defense of such claim or Proceeding; and


                           (v) the Indemnifying  Party shall not settle,  adjust
or compromise such claim or Proceeding  without the prior written consent of the
Indemnified  party,  which consent shall not  unreasonably  be withheld.  If the
Indemnifying Party does not (or cannot) elect to designate to assume the defense
of any such claim or  Proceeding,  the  Indemnified  Party may proceed  with the
defense of such claim or  Proceeding  on its own.  If the  Indemnified  Party so
proceeds with the defense of any such claim or Proceeding on its own:

                           (vi) All  expenses  relating  to the  defense of such
claim or Proceeding  (whether or not incurred by the Indemnified Party) shall be
included within the definition of "Damages" for purposes of this Section 5.;

                           (vii) the Indemnifying  Party shall make available to
the  Indemnified  Party any documents and materials in the possession or control
of any of the  Indemnifying  Party that may be  necessary to the defense of such
claim or Proceeding;

                                      21.
<PAGE>

                           (viii)   the   Indemnified   Party   shall  keep  the
Indemnifying Party informed of all material  developments and events relating to
such claim or  Proceeding;  and

                           (ix) the  Indemnified  Party shall not have the right
to settle,  adjust or  compromise  such claim or  Proceeding  without  the prior
written consent of the Indemnifying  Party, which consent shall not unreasonably
be withheld.

         5.8  Exercise of  Remedies  by  Indemnitees  Other Than  Purchaser.  No
Indemnitee (other than the Purchaser or any successor thereto or assign thereof)
shall be  permitted  to assert any  indemnification  claim or exercise any other
remedy under this  Agreement  unless the Purchaser (or any successor  thereto or
assign  thereof) shall have  consented to the assertion of such  indemnification
claim or the exercise of such other remedy.

SECTION 6. MISCELLANEOUS PROVISIONS.

         6.1 Joint and Several  Liability.  Subject to Section 5.5, each Selling
Stockholder agrees that such Selling  Stockholder shall be jointly and severally
liable  with  each of the  other  Selling  Stockholders  for the due and  timely
compliance with and performance of each of the covenants and obligations of such
other Selling Stockholders set forth in this Agreement,  provided, however, that
under no circumstances shall Steinar Faares or Sten Skare have any liability for
representations and warranties made by the Principal Stockholders herein.

         6.2 Further Assurances. Each party hereto shall execute and/or cause to
be delivered to each other party hereto such  instruments  and other  documents,
and shall take such other actions,  as such other party may  reasonably  request
(prior  to,  at or  after  the  Closing)  for the  purpose  of  carrying  out or
evidencing  any of the  Transactions.  Such actions  shall  include,  but not be
limited  to,  (a)  the  Purchaser  assuming  financial  responsibility  for  the
telephones at the Skatron Instruments,  Inc. premises from and after the Closing
Date and the Principal Stockholders  cooperating in transferring such telephones
to the Purchaser,  if the Purchaser so requests;  (b) the Purchaser removing the
purchased  Inventory from the Skatron  Instruments,  Inc. premises as quickly as
commercially reasonable;  (c) the Purchaser filling all unfilled orders accepted
by Skatron  Instruments,  Inc. for Skatron  products  from and after the Closing
Date;  and (d) the  Purchaser  accepting  and  discharging  warranty and service
obligations  for Skatron  products in the field for which  Skatron  Instruments,
Inc. had responsibility prior to the Closing Date.

         6.3 Dispute Resolution. The parties recognize that disputes between the
parties  may from time to time arise  relating  to the  parties'  rights  and/or
obligations  under  this  Agreement.  It is  the  objective  of the  parties  to
establish  procedures  to  facilitate  the  resolution  of such  disputes  in an
expedient manner by mutual cooperation. The parties therefore agree that, before
any arbitration or other proceeding (a "Proceeding") may be commenced under this
Agreement,  the parties  involved in the dispute to be submitted to a Proceeding
shall discuss their differences  during a period of no less than sixty (60) days
in an attempt to reach a resolution of the dispute  without the institution of a
Proceeding.  If the dispute is not resolved  through those  discussions,  either
party may proceed under the terms of Section 6.4.

         6.4 Arbitration.

                  (a)  Agreement  to  Arbitrate.  The  parties  agree  that  any
dispute,  controversy or claim arising out of or relating to this Agreement,  or
to the interpretation,  performance,  breach, termination or invalidity thereof,
where the parties have failed to reach agreement according to Section 6.3, shall
be resolved by binding  arbitration in accordance with the UNCITRAL  Arbitration
Rules in effect on the date hereof.  The arbitration will be administered by the
American Arbitration  Association ("AAA") in San Francisco,  California,  United
States of  America  in  accordance  with its  "Procedures  for

                                      22.
<PAGE>

Cases Under the UNCITRAL  Arbitration  Rules". The arbitration will be conducted
in the city of San Francisco,  California,  United States of America, unless the
parties agree in writing to another location.  The number of arbitrators will be
three (3).  The language to be used in all arbitral  proceedings  and  documents
submitted to or presented before the arbitrator will be in English or translated
into English by a court-certified translator.

                  (b) Notice of Arbitration.  The arbitration  will begin on the
date on  which  the  notice  of  demand  for  arbitration  is  delivered  to the
responding  party or parties  (collectively,  the  "Respondent")  at the address
appearing  for that party in Section 6.7. The party or parties  giving notice of
demand for arbitration (collectively,  the "Complainant") will deliver a copy of
such notice to the AAA.  The notice of demand for  arbitration  will include the
following and any other  information  required by the AAA: (i) a demand that the
dispute be submitted to arbitration; (ii) the names and domiciles of the parties
to the arbitration (the "parties"); (iii) a reference to this Agreement and this
arbitration  provision;  and (iv) a summary  of the  claim  being  submitted  to
arbitration  and a statement of the amount being  claimed.  The notice of demand
for  arbitration  may be  delivered by the method set forth in Section 6.6 or by
any other  method of service of process  permitted by the law of the place where
such delivery is made.

                  (c) Selection of the Arbitral  Panel.  Within thirty (30) days
of the date on which  notice of  demand  for  arbitration  is  delivered  to the
Respondent  and the AAA,  the AAA will  appoint the  arbitral  panel  ("Arbitral
Panel"),  which  shall be  comprised  of  lawyers  familiar  with  international
transactions.

                  (d) Certain Procedures;  Confidentiality.  The Respondent will
have thirty (30) days from the date on which the notice of demand of arbitration
is served in order to respond to the demand.  If Respondent  does not answer the
demand  within  such time  period,  it will be deemed to have  denied all of the
assertions  made by the  Complainant in the demand.  The arbitrator will provide
notice to the  parties at least  sixty (60) days in advance of the date on which
the hearing will be conducted for purposes of presenting evidence and arguments,
which notice shall indicate the date and time for the hearing.  The hearing will
be commenced  within  ninety (90) days of the selection of the  arbitrator,  and
will be completed  within twenty (20) days of commencing,  unless the arbitrator
determines that a longer period is required. At least ten (10) days prior to the
date of the hearing,  the parties will deliver to the arbitrator:  (i) the names
and  addresses  of any witness  that they intend to present and an  affidavit or
declaration  under penalty of perjury,  duly signed by each witness,  which will
detail the  content of his or her  testimony;  (ii) the  documents  that will be
submitted at the hearing;  and (iii) a description  of any other  evidence to be
presented in the  arbitration.  The parties agree to continue  performing  their
respective obligations under this Agreement and any other agreement between them
during the resolution of any dispute submitted to arbitration hereunder,  unless
ordered  otherwise by a court of competent  jurisdiction or the arbitrator.  All
the matters  regarding  or submitted to the  arbitrator  during any  arbitration
proceeding herein will be treated as "confidential  information" and the parties
together with any and all arbitrators will maintain its confidentiality.

                  (e) Interim Relief.  The parties expressly agree that prior to
the selection of the  arbitrator,  nothing in this  Agreement  shall prevent the
parties from  applying to a court that would  otherwise  have  jurisdiction  for
provisional  or  interim  measures.   After  the  arbitrator  is  selected,  the
arbitrator shall have sole jurisdiction to hear such applications.

                  (f) Arbitral Award. The  arbitrator's  award will be issued no
later than thirty (30) days after the conclusion of the arbitration hearing. The
arbitrator  will issue his or her  decision in writing,  and shall set forth the
reasons  for that  decision  and any award  made in favor of any of the  parties
appearing  before the arbitrator.  The award of the arbitrator will be final and
binding,  without additional  recourse,  and will be the exclusive remedy of the
parties  for all  claims,  counterclaims,  issues or

                                      23.
<PAGE>

accountings  presented or pleaded to the arbitrator.  The arbitrator will render
the  award  strictly  in  accordance  with  this  Agreement  and  shall not have
authority  to  change or  diverge  from any  provision  of this  Agreement.  The
arbitral award will be granted and paid in United States  Dollars,  exclusive of
any tax, deduction or offset.

                  (g) Judgment on Award. Judgment upon the arbitral award may be
entered in any court of competent  jurisdiction.  Any additional  costs, fees or
expenses  incurred in enforcing the arbitral award shall be charged  against the
party that resists its enforcement.

                  (h)  Expenses  of   Arbitration;   Attorneys'   Fees.  In  any
arbitration proceeding hereunder, all costs of arbitration,  including,  without
limitation, the fees and expenses of the arbitrator,  expenses of witnesses, the
cost of the  record or  transcripts  thereof,  if any,  the cost of  translating
documents into English for use in the course of the arbitration,  administrative
fees, the attorneys' fees of the parties,  and all other fees and costs shall be
allocated to the parties as determined by the arbitrator.

                  (i) Law Applicable.  Notwithstanding  anything to the contrary
contained  herein,  the law  applicable to the validity of this Section 6.4, the
conduct of the  arbitration,  including any resort to a court for provisional or
interim  remedies,  the  enforcement  of any  award and any  other  question  of
arbitration  law or procedure,  shall be the United States  Federal  Arbitration
Act, 9 U.S.C. ss 1, et seq.

         6.5 Fees and Expenses. The parties shall each bear and pay all of their
own fees,  costs and expenses,  including all legal fees and expenses payable to
their respective legal, tax and accounting advisors  ("Expenses") that have been
incurred  or that are in the  future  incurred  by them in  connection  with the
negotiation,   consummation   and  performance  of  the   Transactions  and  all
certificates,  opinions and other  instruments and documents  delivered or to be
delivered in  connection  with the  Transactions,  provided,  however,  that the
Purchaser  shall  reimburse  the  Principal  Stockholders  for any such Expenses
reasonably incurred,  up to a maximum of US$50,000.  Any amount of such Expenses
incurred or paid by Skatron shall be applied toward such maximum amount, and, to
the extent such maximum amount is met or exceeded, any excess amount incurred or
paid by Skatron  shall  constitute a claim of the  Purchaser  against the Escrow
Account under the terms of the Indemnification Escrow Agreement. For purposes of
this  Section  6.3,  "Expenses"  shall not include  any fees,  costs or expenses
incurred  by the  Principal  Stockholders  or  Skatron  in  connection  with the
preparation  of its audited  financial  statements or in the Ordinary  Course of
Business.

         6.6  Attorney's  Fees.  If any legal  action or other legal  proceeding
relating  to any of  the  Transactional  Agreements  or the  enforcement  of any
provision of any of the  Transactional  Agreements is brought  against any party
hereto, the prevailing party shall be entitled to recover reasonable  attorneys'
fees,  costs and  disbursements  (in  addition to any other  relief to which the
prevailing party may be entitled).

         6.7 Notices.  All notices,  requests,  demands or other  communications
provided  herein  shall be made in writing and shall be deemed to have been duly
delivered  (i)  if  delivered  personally  overnight,   including  by  reputable
international  courier  service  five (5)  Business  Days after  delivery to the
courier or, if earlier,  upon delivery against a signed receipt therefor or (ii)
upon transmission by facsimile or telecopier,  which  transmission is confirmed,
in either  case  addressed  to the party to be notified at the address set forth
below or at such  other  address as such party  shall  have  notified  the other
parties hereto, by notice given in conformity with this Section 6.6:

                                      24.
<PAGE>

                  if to the Selling Stockholders:

                           Helge Skare
                           Tord Pedersens gt 38
                           3014 Drammen
                           Norway

                           Wiel Skare
                           Tord Pedersens gt 38
                           3014 Drammen
                           Norway

                           Sten Skare
                           Tord Pedersens gt 38
                           3014 Drammen
                           Norway

                           Steinar Faanes
                           HB Haraldsengate 64A
                           3188 Horten
                           Norway

                           with a copy to:

                           Wilson Sonsini Goodrich & Rosati, P.C.
                           650 Page Mill Road
                           Palo Alto, CA 94306
                           Attn: Roger E. George
                           Facsimile:  650-845-5000

                  if to the Purchaser:

                           Molecular Devices Corporation
                           1311 Orleans Drive
                           Sunnyvale, CA 94089
                           Attn: President
                           Facsimile: 408-747-3601

                           with a copy to:

                           Cooley Godward LLP
                           3000 El Camino Real
                           Palo Alto, CA 94306
                           Attn: Thomas M. Shoesmith
                           Facsimile:  650-857-0663

         6.8  Publicity.  During a period  of one  year  following  date of this
Agreement,  the  Purchaser  shall not make any  press  release  or other  public
announcement relating to the Transactions contemplated by this Agreement without
advance  notice to the  Principal  Stockholders  of its  intention  to make such
release  or  public  announcement,   providing  to  such  parties  a  reasonable
opportunity  to comment  thereon.  The Selling  Stockholders  shall not make any
press  release  or  other  public  announcement  relating  to  the

                                      25.
<PAGE>

Transactions contemplated by this Agreement without the prior written consent of
the  Purchaser,  which consent will not be  unreasonably  withheld.  The parties
acknowledge  and agree that any such  release or public  announcement  shall not
disclose  the  consideration  paid  for any  Transaction  hereunder  unless  the
disclosing  party  reasonably  concludes that such disclosure is required by the
securities laws of the  jurisdiction  to which the disclosing  party is subject.
The Purchaser  shall timely make all  disclosures  relating to the  Transactions
required under Norwegian law.

         6.9 Time of the Essence. Time is of the essence of this Agreement.

         6.10 Headings.  The underlined headings contained in this Agreement are
for  convenience  of  reference  only,  shall not be deemed to be a part of this
Agreement and shall not be referred to in connection  with the  construction  or
interpretation of this Agreement.

         6.11   Counterparts.   This   Agreement  may  be  executed  in  several
counterparts,  each of which shall constitute an original and all of which, when
taken together, shall constitute one agreement.

         6.12  Force  Majeure.  No party  shall be  liable  to any  other  party
hereunder for any Breach  caused by government  action,  war,  fire,  explosion,
flood, strike,  lockout,  earthquake,  embargo, act of God, or any other similar
cause beyond the control of the  breaching  party,  provided that such party has
exerted all reasonable efforts to avoid or remedy such causes.

         6.13  Governing  Law;  Venue.  This  Agreement  shall be  construed  in
accordance with, and governed in all respects by, the internal laws of the State
of California (without giving effect to principles of conflicts of laws), except
that  any  provision  of this  Agreement  relating  to or  concerning  hazardous
materials or environmental protection laws shall be construed with reference to,
and governed by, the laws of the jurisdiction in which such hazardous  materials
are found.  Subject to the  provisions  of Section 6.4, any lawsuit  between the
parties   connected  with  this  Agreement   shall  be  submitted  to  the  sole
jurisdiction  of the courts of the State of  California,  County of Santa Clara,
or, if it has or can acquire  jurisdiction,  in the United States District Court
for the  Northern  District  of  California,  except  that any  legal  action or
proceeding for the recognition or enforcement of any judgment obtained from such
court  or  any  arbitral  panel  may  be  brought  in  any  court  of  competent
jurisdiction.  Each of the parties  consent to the  jurisdiction  of such courts
(and of the appropriate  appellate  courts) in any such action or proceeding and
waives any objection to venue laid therein.  Process in any action or proceeding
referred to in the preceding sentence may be served on any party anywhere in the
world.

         6.14  Successors  and Assigns.  This  Agreement  shall be binding upon:
Skatron and its successors and assigns (if any);  the Selling  Stockholders  and
their respective personal representatives,  executors, administrators,  estates,
heirs, successors and assigns (if any); and the Purchaser and its successors and
assigns (if any).  This Agreement  shall inure to the benefit of:  Skatron;  the
Selling  Stockholders;  the Purchaser;  the other Indemnitees and the respective
successors  and  assigns (if any) of the  foregoing.  The  Purchaser  may freely
assign  any  or  all  of  its  rights  under  this   Agreement   (including  its
indemnification  rights  under  Section  5),  in whole or in part,  to any other
Person without obtaining the consent or approval of any other party hereto or of
any other Person.

         6.15 Remedies Cumulative; Specific Performance. The rights and remedies
of the parties hereto shall be cumulative  (and not  alternative).  Each Selling
Stockholder  agrees that: (a) in the event of any Breach or threatened Breach by
such Selling  Stockholder  of any covenant,  obligation  or other  provision set
forth in this  Agreement,  the  Purchaser  shall be entitled (in addition to any
other  remedy that may be  available to it) to (i) a decree or order of specific
performance  or mandamus  to enforce  the  observance  and  performance  of such
covenant, obligation or other provision, and (ii) an injunction restraining such
Breach  or  threatened  Breach;  and (b)  neither  the  Purchaser  nor any other
Indemnitee

                                      26.
<PAGE>

shall be required to provide any bond or other  security in connection  with any
such decree,  order or injunction or in  connection  with any related  action or
Proceeding.

         6.16 Waiver.

                  (a) No  failure  on the part of any  Person  to  exercise  any
power, right, privilege or remedy under this Agreement, and no delay on the part
of any Person in  exercising  any power,  right,  privilege or remedy under this
Agreement,  shall operate as a waiver of such power, right, privilege or remedy;
and no single or partial exercise of any such power, right,  privilege or remedy
shall  preclude  any other or further  exercise  thereof or of any other  power,
right, privilege or remedy.

                  (b) No Person shall be deemed to have waived any claim arising
out of this  Agreement,  or any power,  right,  privilege  or remedy  under this
Agreement, unless the waiver of such claim, power, right, privilege or remedy is
expressly  set forth in a written  instrument  duly  executed  and  delivered on
behalf of such Person;  and any such waiver shall not be  applicable or have any
effect  except  in the  specific  instance  in  which it is  given.

         6.17 Amendments.  This Agreement may not be amended,  modified, altered
or  supplemented  other than by means of a written  instrument duly executed and
delivered on behalf of each party affected thereby.

         6.18  Severability.  In the event that any provision of this Agreement,
or the application of any such provision to any Person or set of  circumstances,
shall be  determined  to be  invalid,  unlawful,  void or  unenforceable  to any
extent,  the remainder of this Agreement,  and the application of such provision
to Persons or circumstances  other than those as to which it is determined to be
invalid,  unlawful,  void or  unenforceable,  shall not be impaired or otherwise
affected and shall  continue to be valid and  enforceable  to the fullest extent
permitted by law.

         6.19  Parties  in  Interest.  Except  for the  provisions  of Section 5
hereof,  none of the  provisions  of this  Agreement  is intended to provide any
rights or  remedies  to any  Person  other  than the  parties  hereto  and their
respective successors and assigns (if any).

         6.20  Entire  Agreement.  The  Transactional  Agreements  set forth the
entire  understanding  of the parties relating to the subject matter thereof and
supersede all prior  agreements and  understandings  among or between any of the
parties relating to the subject matter thereof.

         6.21 Construction.

                  (a) For  purposes  of this  Agreement,  whenever  the  context
requires:  the singular  number shall  include the plural,  and vice versa;  the
masculine  gender shall  include the feminine and neuter  genders;  the feminine
gender shall  include the masculine  and neuter  genders;  and the neuter gender
shall include the masculine and feminine genders.

                  (b) The parties hereto agree that all parties have  cooperated
in the drafting of this Agreement and therefore any rule of  construction to the
effect that ambiguities are to be resolved against a drafting party shall not be
applied in the construction or interpretation of this Agreement.

                  (c) As  used  in  this  Agreement,  the  words  "include"  and
"including,"  and  variations  thereof,  shall  not be  deemed  to be  terms  of
limitation,  but rather  shall be deemed to be  followed  by the words  "without
limitation."

                                      27.
<PAGE>

                  (d) Except as  otherwise  indicated,  all  references  in this
Agreement to "Sections" and "Exhibits" are intended to refer to Sections of this
Agreement and Exhibits to this Agreement.


                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                      28.
<PAGE>

         The  parties  hereto  have caused  this  Agreement  to be executed  and
delivered as of the date first above written.


"PURCHASER":                            MOLECULAR DEVICES CORPORATION,
                                          a Delaware corporation

                                        By:  /s/Joseph D. Keegan
                                        ----------------------------------------
                                        Print Name: Joseph D. Keegan

"SELLING STOCKHOLDERS":

                                        /s/ Helge Skare
                                        ----------------------------------------
                                        HELGE SKARE


                                        /s/ Wiel Skare
                                        ----------------------------------------
                                        WIEL SKARE


                                        /s/ Steinar Faanes
                                        ----------------------------------------
                                        STEINAR FAANES


                                        /s/ Sten Skare
                                        ----------------------------------------
                                        STEN SKARE


"SKATRON":                              SKATRON INSTRUMENTS AS,
                                             a Norwegian company


                                        By:  /s/Helge Skare
                                        ----------------------------------------
                                        Print Name:  Helge Skare


"SKATRON INSTRUMENTS, INC.":            SKATRON INSTRUMENTS, INC.,
                                             a Virginia corporation


                                        By:  /s/Helge Skare
                                        ----------------------------------------
                                        Print Name:  Helge Skare


             [SIGNATURE PAGE TO STOCK AND ASSET PURCHASE AGREEMENT]

                                 SIGNATURE PAGE

<PAGE>


                                    EXHIBIT A

                               CERTAIN DEFINITIONS


         For purposes of the Agreement (including this Exhibit A):

         Accounts  Receivable.  "Accounts  Receivable"  shall mean the  accounts
receivable  sold,  assigned and  transferred  to the Purchaser  pursuant to this
Agreement, as more specifically defined in Section 1.3(b)(i).

         Acquisition  Transaction.  "Acquisition  Transaction"  shall  mean  any
transaction involving:

                  (a) the sale or other  disposition  of all or any  portion  of
         Skatron's  business  or assets  (other than in the  Ordinary  Course of
         Business);

                  (b) the issuance, sale or other disposition of (i) any capital
         stock of Skatron,  (ii) any option,  call, warrant or right (whether or
         not  immediately  exercisable) to acquire any capital stock of Skatron,
         or (iii) any security,  instrument or obligation  that is or may become
         convertible into or exchangeable for any capital stock of Skatron; or

                  (c) any merger,  consolidation,  business  combination,  share
         exchange, reorganization or similar transaction involving Skatron.

         Affiliate.  Affiliate means any person or entity directly or indirectly
controlling by or under common control with either party,  where "control" means
the  direct  or  indirect  ownership  of  fifty  percent  (50%)  or  more of the
outstanding  voting  securities  of an  entity,  or the right to  receive  fifty
percent  (50%) or more of the profits or earnings of any entity,  or the ability
to control management of an entity.

         Agreement. "Agreement" shall mean the Stock Purchase Agreement to which
this Exhibit A is attached  (including  the Disclosure  Schedule),  as it may be
amended from time to time.

         Asset Purchase  Price.  "Asset  Purchase  Price" shall have the meaning
assigned to that term in Section 1.2(a).

         Breach.  There  shall be deemed to be a "Breach"  of a  representation,
warranty,  covenant,  obligation or other  provision if there is or has been (a)
any  inaccuracy in or breach of, or any failure to comply with or perform,  such
representation,  warranty,  covenant,  obligation or other provision, or (b) any
claim (by any  Person)  or other  circumstance  that is  inconsistent  with such
representation,  warranty, covenant, obligation or other provision; and the term
"Breach" shall be deemed to refer to any such inaccuracy, breach, failure, claim
or circumstance.

         Business.  "Business"  means  the  current  field  of  business  of the
Purchaser  and any of its  affiliates,  together with any  prospective  field of
business thereof which is the subject of a public  announcement by the Purchaser
or of which Helge Skare actually becomes aware.

         Cash Share Purchase  Price.  "Cash Share Purchase Price" shall have the
meaning specified in Section 1.2(b).

         Closing.  "Closing" shall have the meaning  specified in Section 1.3(a)
of the Agreement.

<PAGE>

         Closing  Date.  "Closing  Date"  shall have the  meaning  specified  in
Section 1.3(a) of the Agreement.

         Companies. "Companies" shall mean Skatron and Skatron Instruments, Inc.

         Company  Plan.  "Company  Plan" shall mean any Current  Benefit Plan or
Past Benefit Plan.

         Competing  Entity.  "Competing  Entity"  means a  corporation  or other
entity that Competes.

         Compete.  "Compete"  shall mean to  directly or  indirectly,  engage or
invest in,  own,  manage,  operate,  finance,  control,  or  participate  in the
ownership, management, operation, or control of, be employed by, consult for, or
render  services  or advice to, any  entity or any  business  unit of any entity
whose  business  competes in whole or in part with the Business of the Purchaser
or any affiliate.

         Confidential Information.  "Confidential Information" means any and all
trade secrets  concerning the business and affairs of Skatron,  the Purchaser or
any  affiliate of either,  product  specifications,  data,  know-how,  formulae,
compositions,  processes,  designs,  sketches,  photographs,  graphs,  drawings,
samples,   inventions  and  ideas,   past,  current  and  planned  research  and
development,  current and planned  manufacturing  and  distribution  methods and
processes, customer lists, current and anticipated customer requirements,  price
lists, market studies, business plans, computer software and programs (including
object code and source  code),  computer  software  and  database  technologies,
systems,   structures  and  architectures  (and  related  processes,   formulae,
compositions,   improvements,   devices,  know-how,   inventions,   discoveries,
concepts,   ideas,  designs,  methods  and  information,   historical  financial
statements,  financial projections and budgets,  historical and projected sales,
capital  spending budgets and plans, the names and backgrounds of key personnel,
personnel  training and techniques and materials,  any and all notes,  analysis,
compilations,  studies,  summaries,  and other  material  prepared by or for the
Molecular  Devices  Group  containing  or  based,  in whole  or in part,  on any
information  included  in the  foregoing,  and any  other  information,  however
documented, of Skatron, the Purchaser or any Affiliate that is a trade secret.

         Consent.  "Consent"  shall mean any  approval,  consent,  ratification,
permission, waiver or authorization (including any Governmental Authorization).

         Contract.  "Contract"  shall mean any written,  oral,  implied or other
agreement,  contract,  understanding,  arrangement,  instrument, note, guaranty,
indemnity,  representation,  warranty,  deed,  assignment,  power  of  attorney,
certificate,  purchase  order,  work  order,  insurance  policy,  benefit  plan,
commitment, covenant, assurance or undertaking of any nature.

         Current  Benefit Plan.  "Current  Benefit Plan" shall mean any Employee
Benefit Plan that is currently in effect and:

                  (a) that was established or adopted by any of the Companies or
         any ERISA Affiliate or is maintained or sponsored by Skatron;

                  (b) in which Skatron participates;

                  (c) with respect to which Skatron or any ERISA Affiliate is or
         may be required or permitted to make any contribution; or

<PAGE>

                  (d) with respect to which Skatron or any ERISA Affiliate is or
         may become subject to any Liability.

         Damages.  "Damages" shall include any loss, damage,  injury, decline in
value, Liability,  claim, demand,  settlement,  judgment,  award, fine, penalty,
Tax,  fee  (including  the  reasonable  amount of any  legal  fee,  expert  fee,
accounting fee or advisory fee), charge,  cost (including the reasonable cost of
any  investigation)  or expense of any nature,  together  with  interest on such
Damages as determined by the Arbitral Panel.

         Disclosure  Schedule.  "Disclosure  Schedule"  shall mean the  schedule
(dated as of the date of the Agreement) delivered to the Purchaser on behalf the
Principal  Stockholders,  a copy of  which  is  attached  to the  Agreement  and
incorporated in the Agreement by reference.

         Employee Benefit Plan.  "Employee  Benefit Plan" shall have the meaning
specified in Section 3(3) of ERISA.

         Encumbrance.  "Encumbrance" shall mean any lien, pledge, hypothecation,
charge,  mortgage,  security interest,  encumbrance,  equity,  trust,  equitable
interest,  claim,  preference,  right of possession,  lease,  tenancy,  license,
encroachment, covenant, infringement,  interference, Order, proxy, option, right
of first refusal, preemptive right, community property interest, legend, defect,
impediment,  exception,  reservation,  limitation,  impairment,  imperfection of
title,  condition or restriction of any nature (including any restriction on the
voting of any security, any restriction on the transfer of any security or other
asset,  any restriction on the receipt of any income derived from any asset, any
restriction  on the use of any  asset  and any  restriction  on the  possession,
exercise or transfer of any other attribute of ownership of any asset).

         Entity.  "Entity" shall mean any corporation  (including any non-profit
corporation),   general  partnership,  limited  partnership,  limited  liability
partnership,  joint venture, estate, trust,  cooperative,  foundation,  society,
political party,  union,  company  (including any limited  liability  company or
joint stock company),  firm or other  enterprise,  association,  organization or
entity.

         ERISA.  "ERISA" shall mean the Employee  Retirement Income Security Act
of 1974.

         ERISA Affiliate.  "ERISA  Affiliate" shall mean any Person that is, was
or would be treated as a single employer with any of the Companies under Section
414 of the Code.

         Excluded Contract.  "Excluded Contract" shall mean any Skatron Contract
that:

                  (a)  Skatron  has  entered  into  in the  Ordinary  Course  of
         Business;

                  (c) has a term of less  than 90 days or may be  terminated  by
         Skatron  (without  penalty)  within  90 days  after the  delivery  of a
         termination notice by Skatron; and

                  (d) does not  contemplate  or involve  the  payment of cash or
         other  consideration  in an  amount  or  having  a value in  excess  of
         $10,000.

         GAAP.  "GAAP"  shall mean  generally  accepted  accounting  principles,
applied  on a basis  consistent  with the basis on which the  Skatron  Financial
Statements were prepared in the country in which they were prepared

<PAGE>

         Governmental  Authorization.  "Governmental  Authorization"  shall mean
any:

                  (a)  permit,  license,  certificate,   franchise,  concession,
         approval, consent, ratification,  permission, clearance,  confirmation,
         endorsement, waiver, certification,  designation, rating, registration,
         qualification  or  authorization  that is or has been issued,  granted,
         given or  otherwise  made  available  by or under the  authority of any
         Governmental Body or pursuant to any Legal Requirement; or

                  (b) right under any Contract with any Governmental Body.

         Governmental Body.  "Governmental Body" shall mean any:

                  (a)  nation,  principality,  state,  commonwealth,   province,
         territory, county, municipality,  district or other jurisdiction of any
         nature;

                  (b)  federal,  state,  local,  municipal,   foreign  or  other
         government;

                  (c) governmental or quasi-governmental authority of any nature
         (including any governmental division, subdivision,  department, agency,
         bureau, branch, office,  commission,  council, board,  instrumentality,
         officer, official,  representative,  organization, unit, body or Entity
         and any court or other tribunal);

                  (d) multi-national organization or body; or

                  (e)  individual,  Entity or body  exercising,  or  entitled to
         exercise,  any  executive,   legislative,   judicial,   administrative,
         regulatory,  police,  military  or  taxing  authority  or  power of any
         nature.

         Hazardous Material.  "Hazardous Material" shall include:

                  (a) any  petroleum,  waste  oil,  crude  oil,  asbestos,  urea
         formaldehyde or polychlorinated biphenyl;

                  (b) any waste,  gas or other  substance  or  material  that is
         explosive or radioactive;

                  (c) any  "hazardous  substance,"  "pollutant,"  "contaminant,"
         "hazardous  waste,"  "regulated  substance,"  "hazardous  chemical"  or
         "toxic chemical" as designated, listed or defined (whether expressly or
         by  reference) in any statute,  regulation  or other Legal  Requirement
         (including CERCLA, any other so-called  "superfund" or "superlien" law,
         the Resource  Conservation  Recovery Act, the Federal  Water  Pollution
         Control Act, the Toxic Substances  Control Act, the Emergency  Planning
         and  Community   Right-to-Know  Act  and  the  respective   regulations
         promulgated thereunder);

                  (d) any other  substance or material  (regardless  of physical
         form) or form of energy that is subject to any Legal  Requirement which
         regulates or  establishes  standards of conduct in connection  with, or
         which otherwise relates to, the protection of human health, plant life,
         animal life,  natural  resources,  property or the enjoyment of life or
         property  from the presence in the  environment  of any solid,  liquid,
         gas, odor, noise or form of energy; and

<PAGE>

                  (e)  any  compound,   mixture,   solution,  product  or  other
         substance or material that contains any substance or material  referred
         to in clause "(a)", "(b)", "(c)" or "(d)" above.

         Indemnitees.  "Indemnitees" shall mean the following Persons:

                  (a) the Purchaser;

                  (b) the Purchaser's  current and future Affiliates  (including
         Skatron);

                  (c) the respective  Representatives of the Persons referred to
         in clauses "(a)" and "(b)" above; and

                  (d) the  respective  successors  and  assigns  of the  Persons
         referred to in clauses "(a)", "(b)" and "(c)" above;

provided, however, that (i) Skatron shall not be entitled to exercise any rights
as an Indemnitee prior to the Closing,  and (ii) the Selling  Stockholders shall
not be deemed to be "Indemnitees."

         Inventory.  "Inventory" shall mean the inventory and other assets to be
sold,  conveyed and  transferred to the Purchaser  pursuant to the terms of this
Agreement, as more specifically defined in Section 1.3(b)(ii).

         Knowledge.  An  individual  shall be  deemed to have  "Knowledge"  of a
particular fact or other matter if:

                  (a) such  individual  is actually  aware of such fact or other
         matter; or

                  (b) a prudent  individual  could be  expected  to  discover or
         otherwise  become  aware of such fact or other  matter in the course of
         conducting a reasonable investigation concerning the truth or existence
         of such fact or other matter.

Skatron shall be deemed to have "Knowledge" of a particular fact or other matter
if any officer of Skatron has Knowledge of such fact or other matter.

         Legal Requirement.  "Legal Requirement" shall mean any federal,  state,
local,  municipal,  foreign or other law,  statute,  legislation,  constitution,
principle  of  common  law,   resolution,   ordinance,   code,  edict,   decree,
proclamation,   treaty,   convention,   rule,  regulation,   ruling,  directive,
pronouncement,  requirement, specification,  determination, decision, opinion or
interpretation that is or has been issued, enacted,  adopted,  passed, approved,
promulgated,  made,  implemented  or  otherwise  put into effect by or under the
authority of any Governmental Body.

         Liability.  "Liability"  shall  mean  any  debt,  obligation,  duty  or
liability  of  any  nature  (including  any  unknown,  undisclosed,   unmatured,
unaccrued, unasserted,  contingent,  indirect, conditional,  implied, vicarious,
derivative,  joint, several or secondary liability),  regardless of whether such
debt,  obligation,  duty or  liability  would be required to be  disclosed  on a
balance  sheet  prepared  in  accordance  with  generally  accepted   accounting
principles and regardless of whether such debt, obligation, duty or liability is
immediately due and payable.

         Material Adverse Effect. An event or events, or any other matter, shall
constitute  a  Material  Adverse  Effect  if it has had,  or may  reasonably  be
expected  to have,  a  material  adverse  effect  on the

<PAGE>

business,  operations,  properties or financial  condition of any entity(ies) in
connection with which the term is used, taken as a whole.

         Order.  "Order" shall mean any:

                  (a)  order,  judgment,   injunction,  edict,  decree,  ruling,
         pronouncement,  determination,  decision,  opinion, verdict,  sentence,
         subpoena,  writ or award  that is or has been  issued,  made,  entered,
         rendered or otherwise  put into effect by or under the authority of any
         court,   administrative  agency  or  other  Governmental  Body  or  any
         arbitrator or arbitration panel; or

                  (b) Contract  with any  Governmental  Body that is or has been
         entered into in connection with any Proceeding.

         Ordinary Course of Business. An action taken by or on behalf of Skatron
shall  not be deemed to have been  taken in the  "Ordinary  Course of  Business"
unless:

                  (a) such action is recurring  in nature,  is  consistent  with
         Skatron's  past  practices  and is  taken  in the  ordinary  course  of
         Skatron's normal operations;

                  (b) such action is taken in  accordance  with  reasonable  and
         customary business practices;

                  (c) such action is not required to be  authorized by Skatron's
         stockholders,   Skatron's  board  of  directors  or  any  committee  of
         Skatron's board of directors and does not require any other separate or
         special authorization of any nature; and

                  (d) such action is similar in nature and  magnitude to actions
         customarily taken,  without any separate or special  authorization,  in
         the ordinary course of the normal operations of Skatron's business.

         Past Benefit Plan.  "Past Benefit Plan" shall mean any Employee Benefit
Plan (other than a Current Benefit Plan):

                  (a) of which any of the  Companies or any ERISA  Affiliate has
         ever been a "plan sponsor" (as defined in Section 3(16)(B) of ERISA) or
         that otherwise has at any time been established, adopted, maintained or
         sponsored by any of the Companies or by any ERISA Affiliate;

                  (b) in which any of the  Companies or any ERISA  Affiliate has
         ever participated;

                  (c) with  respect to which any of the  Companies  or any ERISA
         Affiliate  has ever made,  or has ever been  required or  permitted  to
         make, any contribution; or

                  (d) with  respect to which any of the  Companies  or any ERISA
         Affiliate has ever been subject to any Liability.

         Person.  "Person"  shall mean any  individual,  Entity or  Governmental
Body.

         Proceeding.  "Proceeding"  shall  mean any  action,  suit,  litigation,
arbitration,   proceeding  (including  any  civil,   criminal,   administrative,
investigative or appellate proceeding and any informal

<PAGE>

proceeding), prosecution, contest, hearing, inquiry, inquest, audit, examination
or investigation that is or has been commenced,  brought,  conducted or heard by
or before, or that otherwise has involved or may involve,  any Governmental Body
or any arbitrator or arbitration panel.

         Proprietary Asset.  "Proprietary  Asset" shall mean any patent,  patent
application,  trademark  (whether  registered or unregistered and whether or not
relating to a published work),  trademark  application,  trade name,  fictitious
business name, service mark (whether  registered or unregistered),  service mark
application,   copyright   (whether   registered  or  unregistered),   copyright
application,  trade secret,  know-how,  franchise,  system,  computer  software,
invention, design, blueprint, proprietary product, technology, proprietary right
or other intellectual property right or intangible asset.

         Purchaser.  "Purchaser"  shall mean Molecular  Devices  Corporation,  a
Delaware corporation.

         Related Party.  Each of the following  shall be deemed to be a "Related
Party":

                  (a) each of the Selling Stockholders;

                  (b) each  individual  who is, or who has at any time been,  an
         officer of Skatron or of Skatron Instruments, Inc.;

                  (c)  each  member  of the  family  of each of the  individuals
         referred to in clauses "(a)" and "(b)" above; and

                  (d) any Entity  (other  than  Skatron) in which any one of the
         individuals  referred to in clauses "(a)",  "(b)" and "(c)" above holds
         (or in which  more  than one of such  individuals  collectively  hold),
         beneficially  or otherwise,  a material  voting,  proprietary or equity
         interest.

         Representatives.  "Representatives"  shall  mean  officers,  directors,
employees,  agents, attorneys,  accountants,  advisors and representatives.  The
Selling  Stockholders  and all  other  Related  Parties  shall be  deemed  to be
"Representatives" of Skatron.

         Scheduled Closing Time. "Scheduled Closing Time" shall have the meaning
specified in Section 1.3(a) of the Agreement.

         Selling  Stockholders.  "Selling  Stockholders"  shall have the meaning
specified in the introductory paragraph of the Agreement.

         Share Purchase  Price.  "Share  Purchase  Price" shall have the meaning
specified in Section 1.2(b) of the Agreement.

         Shares. "Shares" shall have the meaning specified in Recital "A" to the
Agreement.

         Short Term Trade  Debt.  "Short  Term Trade Debt" shall mean trade debt
payable within twelve (12) months.

         Skatron Contract. "Skatron Contract" shall mean any Contract:

                  (a) to which Skatron is a party;

<PAGE>

                  (b) by which  Skatron  or any of its  assets is or may  become
         bound or under  which  Skatron  has,  or may  become  subject  to,  any
         obligation; or

                  (c)  under  which  Skatron  has or may  acquire  any  right or
interest.

         Skatron Financial Statements. "Skatron Financial Statements" shall have
the meaning specified in Section 2.4 of the Agreement.

         Skatron Returns.  "Skatron Returns" shall have the meaning specified in
Section 2.18(a) of the Agreement.

         Tax. "Tax" shall mean any tax (including any income tax, franchise tax,
capital gains tax,  estimated tax, gross receipts tax,  value-added tax, surtax,
excise  tax,  ad valorem  tax,  transfer  tax,  stamp tax,  sales tax,  use tax,
property tax,  business tax,  occupation  tax,  inventory  tax,  occupancy  tax,
withholding tax or payroll tax), levy, assessment,  tariff, impost,  imposition,
toll,  duty  (including  any customs  duty),  deficiency or fee, and any related
charge or amount (including any fine, penalty or interest),  that is or has been
(a) imposed, assessed or collected by or under the authority of any Governmental
Body, or (b) payable pursuant to any tax-sharing agreement or similar Contract.

         Tax  Return.   "Tax  Return"  shall  mean  any  return  (including  any
information return), report, statement, declaration, estimate, schedule, notice,
notification,  form, election, certificate or other document or information that
is, has been or may in the future be filed with or submitted  to, or required to
be filed with or submitted  to, any  Governmental  Body in  connection  with the
determination,  assessment,  collection  or payment of any Tax or in  connection
with the administration, implementation or enforcement of or compliance with any
Legal Requirement relating to any Tax.

         Transactional  Agreements.  "Transactional  Agreements"  shall mean the
agreements and other documents specified in Section 1.3(b) of this Agreement.

         Transactions.  "Transactions" shall mean (a) the execution and delivery
of the  respective  Transactional  Agreements,  and (b) all of the  transactions
contemplated by the respective Transactional Agreements, including:

                           (i)  the   sale  of  the   Shares   by  the   Selling
         Stockholders to the Purchaser in accordance with the Agreement; and

                           (ii)  the   performance   by  Skatron,   the  Selling
         Stockholders  and the Purchaser of their respective  obligations  under
         the Transactional  Agreements and the exercise by Skatron,  the Selling
         Stockholders  and the  Purchaser of their  respective  rights under the
         Transactional Agreements; and

                           (iii) the transfer of the Accounts Receivable and the
         Inventory from Skatron Instruments, Inc. to the Purchaser.

<PAGE>

                                    EXHIBIT B

                     INSTRUMENT OF ASSIGNMENT AND ASSUMPTION

FOR  GOOD  AND   VALUABLE   CONSIDERATION,   the  receipt  of  which  is  hereby
acknowledged,  (i) Skatron Instruments, Inc., a Virginia corporation ("Seller"),
hereby sells, transfers, conveys and assigns to Molecular Devices Corporation, a
Delaware corporation ("Buyer"), all of Seller's right, title and interest in and
to the full benefit of all of the accounts  receivable listed on Annex A hereto;
and (ii) Buyer  assumes each and every  liability  and  obligation of Seller for
product  service,  warranty and repair  relating to the Inventory,  warrants and
covenants that it is authorized, willing and able to satisfy all obligations and
duties  thereunder,  and holds Seller  harmless from any claims of third parties
therefor.

This  Instrument  of  Assignment  and  Assumption  is  subject  to the terms and
conditions of that certain Stock and Asset  Purchase  Agreement  dated as of May
17, 1999 ("Purchase  Agreement") between Buyer and Seller (the capitalized terms
used herein which are not otherwise defined herein have the meanings assigned to
them in the  Purchase  Agreement).  The  obligations  of the  Seller  under  the
Contracts  are  assigned  to Buyer  under  this  Instrument  of  Assignment  and
Assumption   without  recourse  and  without  any   representation  or  warranty
whatsoever except as provided in the Purchase Agreement.

This Instrument of Assignment and Assumption  shall be governed by and construed
and enforced in accordance with the laws of the State of California and shall be
binding  upon and inure to the benefit of Seller and Buyer and their  respective
successors and assigns.

IN WITNESS  WHEREOF,  Seller and Buyer have caused this Instrument of Assignment
and Assumption to be executed and delivered as of this 17th day of May, 1999.


                                        SKATRON INSTRUMENTS, INC.




                                        By: ____________________________________
                                        Its:



                                        MOLECULAR DEVICES CORPORATION



                                        By: ____________________________________
                                        Its:

                                       9.
<PAGE>

                                    EXHIBIT C

                                  BILL OF SALE


FOR  GOOD  AND   VALUABLE   CONSIDERATION,   the  receipt  of  which  is  hereby
acknowledged,  Skatron  Instruments,  Inc., a Virginia  corporation  ("Seller"),
hereby sells, transfers, conveys and assigns to Molecular Devices Corporation, a
Delaware corporation ("Buyer"), all of Seller's right, title and interest in and
to the following assets and properties  listed and only the following assets and
properties:

         (a)      the property  listed on Annex A hereto,  together  with all of
                  Seller's  right,  title  and  interest  in  and  to  the  name
                  "Skatron,"  including any and all right, title and interest of
                  the  Seller  in and to any  trade  mark,  trade  name or other
                  proprietary mark or designation containing the word "Skatron,"
                  except that Seller shall retain the right to use its corporate
                  name  in  connection   with   resolution  of  any  liabilities
                  remaining after the Closing and in connection with the winding
                  up,  dissolution  and  liquidation  of the  Seller  after  the
                  Closing (the "Personal Property");

         (b)      all  causes  of  action  and  rights  of  enforcement  of  all
                  representations,    warranties,    guaranties,    indemnities,
                  undertakings, certificates, covenants, agreements and the like
                  made  by  any  vendor,  manufacturer  or  contractor  and  all
                  security therefor received by Seller for the purchase or other
                  acquisition  of any part of the Personal  Property,  which are
                  described  above  or  in  the  Instrument  of  Assignment  and
                  Assumption  entered  into by and among Seller and Buyer on the
                  date hereof, and which are being sold,  transferred,  conveyed
                  and  assigned  to Buyer  under  that  certain  Stock and Asset
                  Purchase  Agreement dated May 17, 1999 ("Purchase  Agreement")
                  between  Buyer and Seller (the  capitalized  terms used herein
                  which are not  otherwise  defined  herein  are used  herein as
                  defined in the Purchase Agreement).

The sale of the Personal  Property is subject to the terms and conditions of the
Purchase  Agreement.  The  Personal  Property  is sold,  transferred,  conveyed,
assigned  and  delivered  to Buyer under this Bill of Sale free and clear of all
liens,  encumbrances  and  interests of third  parties in "as is"  condition and
without  any  representation  or warranty  whatsoever  except as provided in the
Purchase  Agreement.  Seller makes no representation,  express or implied, as to
the  quality,  condition  or fitness  of any of the  Personal  Property  for any
purpose except as set forth in the Asset Purchase Agreement.

This Bill of Sale shall be governed by and  construed and enforced in accordance
with the laws of the State of California  and shall be binding upon and inure to
the benefit of Seller and Buyer, and their respective successors and assigns.

IN WITNESS  WHEREOF,  Seller has executed and delivered  this Bill of Sale as of
this 17th day of May, 1999.


                                        SKATRON INSTRUMENTS, INC.




                                        By: ________________________________


                                      10.
<PAGE>

                                        Its:

                                      11.
<PAGE>

                                    EXHIBIT C


                        INDEMNIFICATION ESCROW AGREEMENT


         THIS  INDEMNIFICATION  ESCROW AGREEMENT ("Escrow Agreement") is entered
into effective as of May 17, 1999 ("Effective Date"), by and among (i) MOLECULAR
DEVICES  CORPORATION.,  a corporation  organized and existing  under the laws of
State of Delaware, United States of America ("Purchaser");  (ii) HELGE SKARE AND
WIEL SKARE  individuals  and residents of Norway  (collectively,  the "Principal
Stockholders");  and (iii)  GREATER BAY TRUST  COMPANY  ("Escrow  Agent"),  with
reference to the following facts:

                                    RECITALS

         A. The Purchaser and the Selling Stockholders have entered into a Stock
and Asset  Purchase  Agreement and related  agreements  dated as of May 17, 1999
(collectively, the "Stock and Asset Purchase Agreement"),  pursuant to which the
Purchaser has agreed to purchase from the Selling Stockholders,  and the Selling
Stockholders have agreed to sell, convey, transfer,  assign and deliver, 314,400
shares of the capital  stock of Skatron  Instruments  AS, a  Norwegian  company,
representing one hundred percent (100%) of the issued and outstanding  shares of
capital stock of that company.

         B.  Pursuant  to  Section  1.2(c)  of  the  Stock  and  Asset  Purchase
Agreement,  the  Purchaser has agreed to deposit with the Escrow Agent an amount
(the "Escrow Amount"), to be held and applied by the Escrow Agent as provided in
this Escrow  Agreement,  equal to Six Hundred  Thousand  United  States  Dollars
(US$600,000).

         C. The parties desire that the Escrow Amount shall be held in escrow by
the Escrow Agent and  distributed  in  accordance  with the  provisions  of this
Escrow Agreement and the Stock and Asset Purchase Agreement.

                                    AGREEMENT

         NOW,  THEREFORE,  in  consideration  of the foregoing  premises and the
representations,  warranties and covenants and agreements  contained herein, and
for other good and valuable consideration,  the receipt and adequacy of which is
hereby acknowledged, the parties hereto agree as follows:

SECTION 7. Definitions

         Capitalized  terms used in this  Escrow  Agreement  without  definition
shall have the respective meanings given to them in the Stock and Asset Purchase
Agreement.

SECTION 8. Appointment of the Escrow Agent

         The Purchaser and the Principal  Stockholders hereby appoint the Escrow
Agent as escrow agent  hereunder on the terms and  conditions  set forth herein,
and  the  Escrow  Agent  hereby  accepts  such  appointment  on such  terms  and
conditions.

SECTION 9. Establishment of Escrow

                                      12.
<PAGE>

         9.1 Deposit of Escrow  Amount.  Pursuant to Section 1.2(c) of the Stock
and Asset Purchase Agreement, the Purchaser is depositing the Escrow Amount with
the Escrow Agent in immediately available funds. The Escrow Agent shall maintain
the Escrow Amount, as it may be reduced from time to time in accordance with the
terms of this Agreement,  in an account  maintained by it (the "Escrow Account")
until  disbursed  by the  Escrow  Agent in  accordance  with  the  terms of this
Agreement.

         9.2 Acceptance of Appointment. The Escrow Agent hereby agrees to act as
escrow agent and to hold,  safeguard and disburse the Escrow Amount  pursuant to
the terms and conditions hereof.

SECTION 10. Investment of Funds

         Except as the Purchaser and the Principal Stockholders may from time to
time jointly  instruct the Escrow Agent in writing,  the Escrow  Amount shall be
invested  from time to time,  to the extent  possible,  in an  interest  bearing
investment  account  approved by the Purchasers  and the Principal  Stockholders
with the Escrow  Agent,  until  disbursement  of the entire Escrow  Amount.  The
Escrow  Agent is  authorized  to  liquidate  in  accordance  with its  customary
procedures any portion of the Escrow Amount consisting of investments to provide
for payments required to be made under this Escrow Agreement. All profit derived
from any investment of any part of the Escrow Amount, together with all interest
earned on the Escrow Amount, shall be included within the definition of the term
"Escrow Amount" for purposes of this Escrow Agreement.

SECTION 11. Retention of Escrow Amount

         The Escrow  Agent shall hold the Escrow  Amount in escrow to secure the
obligations  of the  Principal  Stockholders  set  forth in the  Stock and Asset
Purchase  Agreement and shall release the Escrow  Amount,  and any part thereof,
only in accordance with the provisions of this Escrow Agreement.

SECTION 12.  Notice and Payment of Claims:  Retention  and Release of Amounts in
Escrow

         12.1 Purchaser's  Notice.  At any time during the period  commencing on
the date hereof and ending six (6) months  thereafter  (the "Holdback  Period"),
the  Purchasers  may deliver a notice  signed by an officer of the  Purchaser (a
"Notice") to the  Principal  Stockholders  and the Escrow Agent (i) stating that
the  Principal  Stockholders  are  obligated to make a payment to the  Purchaser
pursuant to Section 5 of the Stock and Asset  Purchase  Agreement  in respect of
any loss,  damage,  deficiency,  liability  or  obligation  included  within the
definition  of "Damages" or otherwise  the subject of Section 5 of the Stock and
Asset Purchase  Agreement  (each, a "Damage"),  and  identifying  which of those
Sections gives rise to the Principal Stockholders'  obligation;  (ii) specifying
in  reasonable  detail the  nature,  the  underlying  facts,  and, to the extent
determinable  at the time of such  Notice,  the  dollar  amount or a good  faith
approximation thereof;  together with the Purchaser's  calculations with respect
thereto (a "Claim Amount") of any claim for  indemnification  (a "Claim") it may
have  under  Section  5 of the Stock and  Asset  Purchase  Agreement;  and (iii)
confirming  that such Claim is not subject to the  limitations  on the Principal
Stockholders'  indemnification obligations set forth in Section 5.3 of the Stock
and Asset Purchase  Agreement.  The Purchasers may make more than one claim with
respect to any underlying state of facts, but shall only be entitled to a single
recovery  in  respect  of any single  Damage or amount  which is the  subject of
Section 5 of the Stock and Asset Purchase Agreement.  The Escrow Agent shall not
inquire into or consider  whether a Claim complies with the  requirements of the
Stock and Asset Purchase Agreement.

         12.2 Principal Stockholders' Counter Notice. Within ninety (90) days of
receipt of a Notice,  the Principal  Stockholders  may deliver to the Purchasers
and to the Escrow Agent a notice (a "Counter  Notice")  signed by each Principal
Stockholder  delivering such Counter Notice (i) setting forth their

                                      13.
<PAGE>

acquiescence  to or rejection of the Claim in its totality,  or of their partial
acceptance  of the  Claim;  (ii)  specifying  that  part of the  Claim  to which
acquiescence  is made and that part which is rejected;  (iii) as to each part of
the Claim  which is  rejected,  specifying  whether the  Principal  Stockholders
reject their obligation to indemnify the Purchasers in respect thereof,  whether
the Principal  Stockholders  accept their obligation to indemnify the Purchasers
in  respect  thereof  but  reject  the  amount of the  Claim or both;  provided,
however,  that if the Principal  Stockholders have waived their right to dispute
their  obligation to indemnify the  Purchasers in respect of any Claim under the
terms of the Stock and Asset Purchase  Agreement,  they shall not have the right
to reject any Claim on the basis of any such asserted  waiver;  and (iv) setting
forth  in  reasonable  detail  the  nature  of and the  facts  underlying  their
rejection of any part of the Claim.

         12.3  Accepted  Claims.  Any Claim or portion of any Claim which is not
disputed in a Counter  Notice  timely  delivered by the  Principal  Stockholders
shall be referred to as "Accepted." Failure by the Principal Stockholders timely
to deliver a Counter  Notice in response to any Notice  shall be deemed to be an
acceptance of the validity of the Claim set forth in such Notice and a waiver of
any right to contest the validity or amount of such Claim, and the amount of the
entire Claim shall be deemed "Accepted."

         12.4  Unresolved  Claims.  Any  Claim or  portion  of a Claim  which is
disputed in a Counter  Notice  shall be resolved in  accordance  with Section 7,
and, pending such resolution,  shall be referred to as "Unresolved."  The entire
amount of any Claim shall be deemed "Unresolved"  between the date of the Notice
setting  forth  such  Claim,  and (i) the  date on  which a  Counter  Notice  is
delivered  in respect of such  Claim,  and (ii) the last date on which a Counter
Notice may be delivered in respect of such Claim under Section 6.2, whichever is
earlier.

         12.5  Retention of Escrow  Amount.  Except as set forth in Section 6.6,
the Escrow Agent shall retain a portion of the Escrow  Amount  sufficient to pay
the amount of all Unresolved Claims.

         12.6 Release of Escrow Amounts.  The Escrow Agent shall: (i) pay to the
Purchasers,  on the  ninety-fifth  (95th) day after  receipt of any Notice,  the
Accepted  amount of the Claim set forth in such Notice;  (ii) make such payments
to the Purchasers or the Principal Stockholders as required under Section 7; and
(iii) release to the Principal  Stockholders  at the termination of the Holdback
Period the  Escrow  Amount,  if any,  in excess of the  aggregate  amount of any
Claims which are then Unresolved.

SECTION 13. Unresolved Claims

         The Escrow  Agent  shall not pay any amounts in respect of any Claim or
portion thereof which is Unresolved except in accordance with the following:

         13.1  Joint or  Counterpart  Instructions  for  Payment  of  Unresolved
Claims.  If  the  Purchasers  and  the  Principal   Stockholders  resolve  their
differences  by  negotiation as to the portion of any Claim which is Unresolved,
they shall deliver joint or counterpart instructions to the Escrow Agent setting
forth the agreement  between them. The Escrow Agent shall be entitled to rely on
any such joint or counterpart instructions and shall promptly pay amounts to the
Purchasers  or to the  Principal  Stockholders  as set  forth  in the  joint  or
counterpart instructions.

         13.2 Arbitral or Judicial  Decision with Respect to Unresolved  Claims.
If the Purchasers and the Principal  Stockholders  are not able to resolve their
differences  as to the portion of any Claim which is Unresolved  within  fifteen
(15) days of receipt by the  Purchasers of the Counter Notice  identifying  such
Unresolved Claim amount, either of the Purchasers or the Principal  Stockholders
may initiate  arbitration  to resolve  those  differences  under Section 13. The
Escrow Agent shall pay amounts in respect of any such Unresolved Claim only upon
receipt of (i) joint or  counterpart  instructions  setting

                                      14.
<PAGE>

forth an agreement  between the Purchasers and the Principal  Stockholders  with
respect to the  payment of such  Unresolved  Claim or part  thereof,  or (ii) an
arbitration decision or a final non-appealable judgment or court order presented
by the Purchasers or the Principal  Stockholders  stating  whether the Principal
Stockholders  have an obligation to indemnify the  Purchasers and specifying the
dollar  amount of such  indemnity  obligation.  The Escrow Agent shall  promptly
provide written notice to the non-presenting  party of such arbitration decision
or court  judgment or order upon receipt  thereof,  and five (5)  Business  Days
thereafter shall pay amounts to the Purchasers or to the Principal  Stockholders
as set forth in the  arbitration  decision or final  non-appealable  judgment or
court order,  unless otherwise enjoined from so doing. Any arbitration  decision
or court  order  shall be  accompanied  by a legal  opinion by  counsel  for the
presenting  party  satisfactory  to the  Escrow  Agent  to the  effect  that the
arbitration  decision  or order is final and  non-appealable.  The Escrow  Agent
shall act on such  arbitration  decision  or court  order and legal  opinion  as
provided herein without further question.

SECTION 14. Termination of Escrow

         This Escrow Agreement shall terminate when the entire Escrow Amount has
been distributed in accordance with the provisions of this Escrow Agreement.

SECTION 15. Duties of the Escrow Agent

         15.1 The  Escrow  Agent  shall not be under any duty to give the Escrow
Amount held by it  hereunder  any  greater  degree of care than it gives its own
similar  property  and shall not be required to invest any funds held  hereunder
except as directed in this Escrow  Agreement.  Uninvested  funds held  hereunder
shall not earn or accrue interest.

         15.2 The Escrow  Agent  shall not be  liable,  except for its own gross
negligence or willful  misconduct  and, except with respect to claims based upon
such gross  negligence  or willful  misconduct  that are  successfully  asserted
against the Escrow Agent,  the other parties  hereto shall jointly and severally
as to 50% each  indemnify  and hold harmless the Escrow Agent (and any successor
to the Escrow Agent) from and against any and all losses,  liabilities,  claims,
actions,  damages  and  expenses,   including  reasonable  attorneys'  fees  and
disbursements,  arising out of and in connection  with this  Agreement.  Without
limiting  the  foregoing,  the  Escrow  Agent  shall in no event  be  liable  in
connection  with its investment or reinvestment of any cash held by it hereunder
in  good  faith,  in  accordance  with  the  terms  hereof,  including,  without
limitation,  any  liability  for  any  delays  (not  resulting  from  its  gross
negligence  or willful  misconduct)  in the  investment or  reinvestment  of the
Escrow Amount, or any loss of interest incident to any such delays.

         15.3  The  Escrow  Agent  shall be  entitled  to rely  upon any  order,
judgment,  certification,  demand, notice, instrument or other writing delivered
to it hereunder  without  being  required to determine the  authenticity  or the
correctness  of any fact  stated  therein or the  propriety  or  validity of the
service  thereof.  The Escrow Agent may act in reliance  upon any  instrument or
signature believed by it to be genuine and may assume that the person purporting
to give  receipt or advice or make any  statement  or execute  any  document  in
connection  with the  provisions  hereof has been duly  authorized to do so. The
Escrow Agent may conclusively presume that the undersigned representative of any
party hereto  which is an entity other than a natural  person has full power and
authority to instruct  the Escrow  Agent on behalf of that party unless  written
notice to the contrary is delivered to the Escrow Agent.

         15.4 The Escrow  Agent may act  pursuant to the advice of counsel  with
respect  to any matter  relating  to t. his  Escrow  Agreement  and shall not be
liable for any action  taken or omitted by it in good faith in  accordance  with
such advice.

                                      15.
<PAGE>

         15.5 The Escrow Agent does not have any  interest in the Escrow  Amount
deposited  hereunder  but is  serving  as escrow  holder  only and  having  only
possession  thereof.  Any  payments  of income from the Escrow  Amount  shall be
subject to withholding  regulations  then in force with respect to United States
Taxes.  The  parties  hereto  will  provide  the Escrow  Agent with  appropriate
Internal Revenue Service Forms W-9 for tax identification  number  certification
or Forms W-8 for foreign status certification.  This Section 9.5 and Section 9.2
shall survive  notwithstanding  any termination of this Escrow  Agreement or the
resignation of the Escrow Agent.

         15.6 The Escrow Agent (and any  successor  to the Escrow  Agent) may at
any time resign as such by delivering  the Escrow Amount to any successor to the
Escrow Agent jointly  designated by the other parties  hereto in writing,  or to
any court,  whereupon  the Escrow Agent shall be  discharged of and from any and
all  further  obligations  arising  in  connection  with  this  Agreement.   The
resignation  of the  Escrow  Agent  will take  effect on the  earlier of (i) the
appointment  of a successor  escrow  agent (which may include a court of law) or
(ii) the day which is sixty (60) days after the date of  delivery of its written
notice of  resignation to the other parties  hereto.  If at that time the Escrow
Agent has not received a designation  of a successor  escrow  agent,  the Escrow
Agent's sole responsibility after that time shall be to retain and safeguard the
Escrow  Amount until  receipt of a  designation  of successor  escrow agent or a
joint  written  disposition  instruction  by the other panics  hereto or a final
non-appealable order of a court of law.

         15.7 In the event of any disagreement  between the other parties hereto
resulting in adverse claims or demands being made in connection  with the Escrow
Amount,  or any  portion  thereof,  or in the event that the Escrow  Agent is in
doubt as to what  action it should  take  hereunder,  the Escrow  Agent shall be
entitled  to retain  such  portion of the Escrow  Amount  corresponding  to such
adverse  claims or as to which it is in doubt as to what  action it should  take
(the  "Amount  in  Question")  until it has  received  (i) joint or  counterpart
instructions setting forth an agreement between the Purchasers and the Principal
Stockholders with respect to the disposition of the Amount in Question,  or (ii)
an  arbitration  decision  or a final  non-appealable  judgment  or court  order
presented by the  Purchasers  or the  Principal  Stockholders  setting forth the
disposition of the Amount in Question.  The Escrow Agent shall promptly  provide
written notice to the non-presenting  party of any arbitration decision or final
non-appealable  judgment  or court  order  upon  receipt  thereof,  and five (5)
Business Days thereafter shall pay amounts to the Purchasers or to the Principal
Stockholders  as set forth in the arbitration  decision or final  non-appealable
judgment  or  court  order,   unless  otherwise  enjoined  from  so  doing.  Any
arbitration  decision or court order shall be  accompanied by a legal opinion by
counsel for the presenting party  satisfactory to the Escrow Agent to the effect
that the arbitration  decision or order is final and non-appealable.  The Escrow
Agent shall act on such arbitration decision or court order and legal opinion as
provided herein without further question.

         15.8 The  Escrow  Agent's  fees and  expenses  for acting as the Escrow
Agent  hereunder  are set forth in Schedule A hereto.  Except as may be provided
elsewhere in this Escrow  Agreement,  the Escrow Agent's fees and expenses shall
be shared equally by the Purchasers and the Principal Stockholders.

         15.9  Except as  required  by law,  no printed  or other  matter in any
language  (including,  without limitation,  prospectuses,  notices,  reports and
promotional  material)  that  mentions  the Escrow  Agent's  name or the rights,
powers,  or  duties of the  Escrow  Agent  shall be issued by the other  parties
hereto or on such parties' behalf unless the Escrow Agent shall first have given
its specific written consent thereto.

SECTION 16. Limited Responsibility

         This Escrow Agreement expressly sets forth all the duties of the Escrow
Agent with respect to any and all matters pertinent hereto. No implied duties or
obligations  shall be read into this Escrow

                                      16.
<PAGE>

Agreement  against the Escrow Agent.  The Escrow Agent shall not be bound by the
provisions  of any agreement  among the other parties  hereto except this Escrow
Agreement.

SECTION 17. Ownership for Tax Purposes

         The Principal  Stockholders and the Purchasers agree that, for purposes
of any Taxes based on income, the Principal Stockholders shall be treated as the
owner of the Escrow Amount, and that the Principal  Stockholders will report all
income,  if any, that is earned on, or derived from, the Escrow Amount as income
in the taxable year or years in which such income is properly includible and pay
any taxes attributable thereto.

SECTION 18. Notices 18

         All notices,  requests, demands or other communications provided herein
shall be made in writing and shall be deemed to have been duly  delivered (i) if
delivered personally  overnight,  including by reputable  international  courier
service  five (5)  Business  Days after  delivery to the courier or, if earlier,
upon delivery  against a signed receipt  therefor or (ii) upon  transmission  by
facsimile  or  telecopier,  which  transmission  is  confirmed,  in either  case
addressed  to the party to be notified at the address set forth below or at such
other  address as such party  shall have  notified  the other Party  hereto,  by
notice given in conformity with this Section 12.

    if to the Purchasers:                 Molecular Devices Corporation
                                          1311 Orleans Drive
                                          Sunnyvale, CA 94089
                                          Attn: President
                                          Facsimile: 408-747-3601

    with required copies to:              Cooley Godward llp
                                          Five Palo Alto Square
                                          3000 El Camino Real
                                          Palo Alto, CA  94306-2155
                                          Attention:  Thomas M. Shoesmith
                                                   Facsimile: 650-857-0663

    if to the Principal Stockholders:     Helge Skare
                                          Weil Skare
                                          Tord Pedersens gt 38
                                          3014 Drammen
                                          Norway

    with required copies to:              Wilson Sonsini Goodrich & Rosati, P.C.
                                          650 Page Mill Road
                                          Palo Alto, CA 94306
                                          Attn: Roger E. George
                                          Facsimile:  650-845-5000

    if to the Escrow Agent:               Greater Bay Trust Company
                                          P.O. Box 1740
                                          Palo Alto, CA 94302
                                          Attn: Anna Paiva
                                          Fax: 650-473-1326

                                      17.
<PAGE>

SECTION 19. Dispute Resolution and Arbitration

         Any  dispute,  controversy  or  claim  between  the  Purchaser  and the
Principal  Stockholders  arising out of or relating to this Escrow  Agreement or
the  performance,  breach or  termination  thereof will be settled in accordance
with the  process  described  in  Sections  6.3 and 6.4 of the  Stock  and Asset
Purchase Agreement.

SECTION 20. Jurisdiction; Service of Process

         This Agreement  shall be construed in accordance  with, and governed in
all respects by, the internal  laws of the State of California  (without  giving
effect to principles of conflicts of laws). Subject to the provisions of Section
13, any dispute  between  the parties  connected  with this  Agreement  shall be
submitted  to the sole  jurisdiction  of the courts of the State of  California,
County of Santa Clara, or, if it has or can acquire jurisdiction,  in the United
States  District  Court for the  Northern  District of  California.  Each of the
parties  consent to the  jurisdiction  of such  courts  (and of the  appropriate
appellate  courts) in any such action or proceeding  and waives any objection to
venue  laid  therein.  Process in any action or  proceeding  referred  to in the
preceding sentence may be served on any party anywhere in the world.

SECTION 21. Counterparts

         This Escrow Agreement may be executed in one or more counterparts, each
of  which  will be  deemed  to be an  original  and all of,  which,  when  taken
together, will be deemed to constitute one and the same.

SECTION 22. Section Headings

         The  headings of sections in this Escrow  Agreement  are  provided  for
convenience only and will not affect its construction or interpretation.

SECTION 23. Waiver

         The rights and remedies of the parties to this Agreement are cumulative
and  not  alternative.  Neither  the  failure  nor any  delay  by any  party  in
exercising any right,  power,  or privilege  under this Escrow  Agreement or the
documents referred to in this Escrow Agreement will operate as a waiver of, such
right, power, or privilege, and no single or partial exercise of any such right,
power,  or privilege will preclude any other or further  exercise of such right,
power, or privilege or the exercise of any other right, power, or privilege.  To
the maximum  extent  permitted by applicable  law, (i) no claim or right arising
out of this  Escrow  Agreement  or the  documents  referred  to in  this  Escrow
Agreement can be  discharged  by one party,  in whole or in part, by a waiver or
renunciation of, the claim or right unless in writing signed by the other party;
(ii) no waiver  that may be given by a party  will be  applicable  except in the
specific instance for which it is given; and (iii) no notice to or demand on one
party  will be deemed to be a waiver of any  obligation  of such party or of the
right of, the party giving such notice or demand to take further  action without
notice or demand as provided in this Escrow Agreement or the documents  referred
to in this Escrow Agreement.

SECTION 24. Exclusive Agreement and Modification; Nonassignability

         This  Escrow  Agreement,  together  with the Stock  and Asset  Purchase
Agreement, supersedes all prior agreements among the parties with respect to the
subject matter thereof and those agreements constitute (along with the documents
referred to  therein),  a complete and  exclusive  statement of the terms of the
agreement  between the parties with respect to its subject  matter.  This Escrow
Agreement  may not

                                      18.
<PAGE>

be  amended  except by a  written  agreement  executed  by the  Purchasers,  the
Principal  Stockholders  and the Escrow Agent.  This Escrow Agreement may not be
assigned by any of the Purchasers or the Principal Stockholders, except by will,
the laws of intestacy, or by other operation of law.

SECTION 25. Successors and Assigns

         The provisions of this Escrow Agreement shall be binding upon and inure
to the benefit of the parties and their respective successors and assigns.

         IN WITNESS  WHEREOF,  the parties  have  executed  and  delivered  this
Agreement as of the date first written above.



         MOLECULAR DEVICES CORPORATION:      THE PRINCIPAL STOCKHOLDERS:


         By: ___________________________     By: _______________________________
         Its:                                        Helge Skare


                                             By: _______________________________
                                                      Wiel Skare


         ESCROW AGENT:

         Greater Bay Trust Company


         By: ___________________________
         Its:


              [SIGNATURE PAGE TO INDEMNIFICATION ESCROW AGREEMENT]

                                      19.
<PAGE>

                                  SCHEDULE "A"


                        Schedule of Fees of Escrow Agent


         Annual Fee:                        $2,500.00


         Fee per disbursement:              $   25.00


         Note:  additional  fees  may  be  required  in  the  event  of  unusual
occurrences or requests for assistance on the part of Greater Bay Trust Company.

                                      20.
<PAGE>

                                    EXHIBIT D


Skatron Instruments AS
Dolasletta 3, P. O. Box 8
N-3401 Lier
NORWAY


_________, 1999

Dr. Helge Skare
Skatron Instruments AS
Dolasletta 3, P. O. Box 8
N-3401 Lier, NORWAY

Re:      Consulting Agreement with Skatron Instruments AS

Dear Helge:

On behalf of Skatron Instruments AS (the "Company"), I am pleased to offer you a
consulting  arrangement,  as an independent contractor to the Company, under the
terms and conditions set forth below (the  "Agreement").  Capitalized  terms not
defined in the body of this  letter  Agreement  have the  meanings  set forth on
Exhibit "A."

SECTION 26.       Term.  The term of this Agreement (the "Term") is three years,
                  commencing on July 7, 1999.

SECTION 27.       Consulting  Services.  During the Term of this Agreement,  the
                  Company will request you to perform  consulting  services (the
                  "Consulting Services") for a maximum of 165 days per year. The
                  principal focus of the Consulting  Services to be requested by
                  the Company will be with regard to the development of existing
                  and future products of the Molecular  Devices Group. You agree
                  to perform the Consulting Services requested by the Company to
                  the  best of your  ability.  You  will be  based  in  Drammen,
                  Norway,  and the  Company  will not require you to travel away
                  from Drammen more than 60 days in any year.

SECTION 28.       Compensation.  Your  compensation for providing the Consulting
                  Services  under this  Agreement  shall be US$125,000 per year,
                  invoiced in equal monthly amounts of US$10,416.67  each. As an
                  independent contractor, you will not be entitled to any of the
                  benefits   which  the  Company  may  make   available  to  its
                  employees,   such  as  group  insurance,   profit-sharing   or
                  retirement benefits. Any travel required of you by the Company
                  will be arranged for by the Company at its expense,  including
                  lodging  associated  with such  travel,  and the Company  will
                  reimburse  you  for  reasonable  expenses  incidental  to such
                  travel  in  accordance  with  the  policies  of the  Molecular
                  Devices  Group.  Except for what is stated in this  Agreement,
                  the  compensation  provided  for in this Section 3 shall cover
                  all of your costs.

                                      21.
<PAGE>


SECTION 29.       Royalties.

         29.1 The Company  shall pay you a royalty of 2.5% of Total Sales to end
users of New Skatron Products during the Term of this Agreement and for a period
of nine years thereafter.  The royalty shall be calculated on the basis of Total
Sales for each  calendar  quarter  and shall be paid to you not later than sixty
(60) days after the end of such calendar  quarter.  All royalty payments will be
calculated and made in United States  Dollars.  For purposes of this  Agreement,
"Total  Sales" means revenue  actually  received by the Company or any Affiliate
from the sale of products and related  services to  unaffiliated  third parties,
less any sales,  use and excise  taxes and  shipping  charges  included in those
revenues;  and "New Skatron  Products"  shall mean the Embla 1536 Washer and any
products  developed  after  December 31, 1998 on which you lead and complete the
development  process  through the production of an operating  prototype.  If you
contribute in part to the development of a product manufactured and sold for the
first time by the Company or any Affiliate after the date of this Agreement,  we
agree to discuss an appropriate  royalty amount to be paid to you which reflects
your contribution to the development of such product.

         29.2 The Company and its  Affiliates  shall keep  complete and accurate
records  pertaining to the sale of the New Skatron Products.  Such records shall
be maintained as required under applicable law. Any royalty payments made by the
Company in accordance with the above shall be followed by a statement  providing
the  following  dates;  gross  sales,  Total  Sales and  calculated  royalty  by
territory  and New Skatron  Products.  Such  statement  shall be provided by the
Company even if no sales where made during the relevant calendar quarter.

         29.3 You are  entitled  to  engage  an  independent,  certified  public
accountant  reasonably  acceptable to the Company and its corporate  parent,  at
your sole cost and expense except as otherwise provided in this Section 4(c), to
examine the books and records of the Company  and any  relevant  Affiliate  from
time to time to verify the correctness of any royalty payments according to this
Section 4. If any such audit reveals an underpayment to you exceeding 10% of the
correct amount of royalties due hereunder,  such audit expenses shall be for the
account of the Company.

SECTION 30.       Independent  Contractor.  Nothing in this Agreement  creates a
                  partnership,  joint venture, or employer-employee relationship
                  between the Company and you. As an independent contractor, the
                  manner and means by which you choose to complete your services
                  are in your sole discretion and control. You agree to exercise
                  your highest  degree of  professionalism,  and to utilize your
                  expertise and creative talents in completing your assignments.
                  You may not subcontract or otherwise delegate your obligations
                  under this  Agreement  without  the  Company's  prior  written
                  consent.  You are not  authorized to make any  representation,
                  contract, or commitment on behalf of the Company.

SECTION 31.       Taxes and Compliance  with Laws. You  responsible  for all tax
                  returns and payments  required to be filed with or made to any
                  tax authority with respect to your performance of services and
                  receipt of compensation under this Agreement. The Company will
                  not  withhold  or make  payments  for  social  security;  make
                  unemployment insurance or disability insurance  contributions;
                  or obtain worker's compensation  insurance on your behalf. You
                  agree to accept  exclusive  liability for  complying  with all
                  applicable laws governing self-employed  individuals,  and you
                  will indemnify and defend the Company against any and all such
                  taxes or contributions, including penalties and interest

SECTION 32.       Noncompetition, Confidentiality, etc. In consideration for and
                  as  an  inducement  to  us  to  enter  into  the  transactions
                  contemplated  by this  Agreement,  you  covenant  and agree as
                  follows:

                                      22.
<PAGE>

                  (a) During the Term of this  Agreement and for a period of two
(2) years  thereafter,  you will not engage in any activity  which Competes with
the Business of the Company or any of its Affiliates, provided, however, that it
shall not be a breach of the  covenant  contained  in this Section 7 if: (i) you
purchase or otherwise acquire up to two percent (2%) of the outstanding  capital
stock of any publicly traded  Competing  Entity;  or (ii) render services to any
Competing Entity if the services rendered,  or your primary  responsibilities to
such Competing  Entity, do not relate to any activities of such Competing Entity
which compete with the Business of the Company or any of its Affiliates.

                  (b) During the Term of this  Agreement and for a period of two
(2) years  thereafter,  you  agree not to  interfere  with the  Business  of the
Company by, directly or indirectly,  either for yourself or any other person (i)
soliciting,  attempting to solicit,  inducing, or otherwise causing any employee
of the  Company  to  terminate  his or her  employment  in  order to  become  an
employee,  consultant,  or  independent  contractor  to or for you or any  third
party;  (ii)  inducing or attempting  to induce any  customer,  client,  vendor,
supplier,  licensee,  distributor  or business  relation  thereof to cease doing
business with the Company or any Affiliate;  or (iii) soliciting the business of
any customer,  client,  vendor,  or distributor of the Company or any Affiliate,
whether or not the  Company or any  Affiliate  had  personal  contact  with such
person,  with respect to products or activities  which compete with the Business
of the Company or any Affiliate.  You agree that this  restriction is reasonably
necessary  to  protect  the  Company's   legitimate  business  interest  in  its
substantial relationships with employees.

                  (c) You  acknowledge  (i) that the Business of the Company and
its Affiliates is  international in scope;  (ii) that Competing  Entities are or
could be located in any part of the world;  (iii) that the Company has  required
that you make the  covenants  set forth in this  Section 7 as a condition to its
purchase  of the  shares of Skatron  owned by you;  (v) the  provisions  of this
Section 7 are  reasonable  and  necessary to protect and preserve the  Company's
business,  (vi) the Company would be  irreparably  damaged if you were to breach
the  covenants  set forth in this  Section  7, and (vi) in the event of any such
breach,  the Company  will be entitled to  injunctive  relief in addition to any
other remedies it may have at law or in equity.

                  (d) You acknowledge and agree that, in the course of providing
the  Consulting  Services,  you will stand in a position of trust and confidence
with  respect to the  Company  and may gain  knowledge  concerning  Confidential
Information  belonging to the Company and its  Affiliates.  You  acknowledge and
agree that all Confidential Information known or obtained by you, whether before
or  after  the  date  hereof,  is  the  property  of the  Company  or one of the
Affiliates of the Company. You agree that you will not, at any time, disclose to
any  unauthorized  persons or use for your own account or for the benefit of any
third party any Confidential Information,  whether or not embodied in writing or
other physical form,  without the prior written  consent of the Company,  unless
and to the extent  that the  Confidential  Information  is or becomes  generally
known to and  available  for use by the  public  other  than as a result of your
fault or the fault of any other person bound by a duty of confidentiality to the
Company.  You agree to deliver to the Company at the time of  execution  of this
Agreement, and at any other time the Company or any Affiliate of the Company may
request, all documents,  memoranda,  notes, plans,  records,  reports, and other
documentation,  models,  components,  devices,  or  computer  software,  whether
embodied  in a disk or in other form (and all  copies of all of the  foregoing),
relating  to the  businesses,  operations,  or  affairs of the  Company  and its
Affiliates  which contain  Confidential  Information and any other  Confidential
Information that you may then possess or have under your control.

                  (e) For purposes of this Agreement,  you acknowledge and agree
that if any Affiliate of the Company shall suffer any damages as a result of any
of the matters set forth in this  Section 7 or otherwise  under this  Agreement,
then  the  Company  itself  shall  be  deemed  to have  incurred  such  damages.

                                      23.
<PAGE>

SECTION 33.       Termination.

         33.1 Termination for cause. This Agreement shall terminate in the event
of your death and may also be terminated  by the Company upon the  occurrence of
any of the following:  (i) your permanent physical or mental  disability,  which
shall be defined as your  inability  to perform  your  duties  pursuant  to this
Agreement  for a continuous  period of ninety (90) days by reason of physical or
mental  illness or  incapacity;  (ii) the  commission of any  fraudulent  act or
conduct, including, but not limited to, fraudulent  misrepresentations committed
by you  while  acting  as an  consultant  to the  Company.  Notwithstanding  any
termination of this  Agreement  pursuant to this Section 8(a), the provisions of
Section  4 shall  continue  in  effect,  except  that the  Company  will have no
obligations  after any such  termination to pay any amounts to you in respect of
royalties on sales of the Embla 1536. To the extent permitted applicable law may
prohibit  the  termination  of this  Agreement at the time or times set forth in
this Section 8(a),  then this Agreement  shall terminate at the first time after
the  occurrence of the relevant event which is permitted  under such  applicable
law.

         33.2 Termination Other Than For Cause.  Either party may terminate this
Agreement at any time upon thirty (30) days  written  notice to the other party.
If the Company  terminates  this Agreement other than for cause pursuant to this
Section  8(b),  the  provisions  of  Sections 3 and 4 shall  continue in effect,
except that you will not be obligated to provide any Consulting  Services to the
Company  after the effective  date of such  termination.  If you terminate  this
Agreement  other than for cause  pursuant to this Section 8(b),  you will not be
entitled to any  compensation  under Section 3 after the effective  date of such
termination,  but the provisions of Section 4 shall  continue in effect,  except
that the Company will have no obligations  after any such termination to pay any
amounts in respect of royalties on sales of the Embla 1536.  In both events your
obligations  under Section 7 will continue in effect until the expiration of two
(2) years after the date on which this Agreement would have expired  pursuant to
Section 1 had it not been earlier terminated pursuant to this Section 8(b).


SECTION 34.       Remedies.  If you breach the agreements set forth in Section 7
                  of this  Agreement,  the  Company and its  Affiliates  will be
                  entitled to  damages,  and in addition to its right to damages
                  and  any  other  rights  the  Company  may  have,   to  obtain
                  injunctive or other equitable relief to restrain any breach or
                  threatened  breach or  otherwise to  specifically  enforce the
                  provisions  of Section 7 of this  Agreement,  it being  agreed
                  that money damages alone would be inadequate to compensate the
                  Company and would be an inadequate remedy for such breach. The
                  rights  and  remedies  of the  parties to this  Agreement  are
                  cumulative and not alternative.

SECTION 35.       General Provisions.

         35.1 Any  notices  provided  hereunder  must be in writing and shall be
deemed  effective  upon the earlier of  personal  delivery  (including  personal
delivery  by fax) or the third  day after  mailing  by  first-class  mail to the
Company at its primary office location and to you at the address below.

         35.2  Whenever  possible,  each  provision  of this  Agreement  will be
interpreted  in such manner as to be effective and valid under  applicable  law,
but if any provision or term of this  Agreement is held to be invalid,  illegal,
or  unenforceable  in any  respect  under  any  applicable  law or  rule  in any
jurisdiction,  such invalidity,  illegality, or unenforceability will not affect
any  other  provision  or any  other  jurisdiction,  but the  Agreement  will be
reformed to the extent  necessary to render such  provision or term  enforceable
or, if it is not  possible  to render such  provision  or term  enforceable,  to
remove such  provision or term, and shall then be construed and enforced in such
jurisdiction as so reformed.

                                      24.
<PAGE>

         35.3 If either party should waive any breach of any  provisions  of the
Agreement, that party shall not hereby be deemed to have waived any preceding or
succeeding breach of the same or any other provision of your Agreement.

         35.4 This  Agreement  shall be governed by  Norwegian  Law. Any dispute
arising out of this Agreement shall be finally determined by arbitration in Oslo
according to chapter 32 in the Norwegian  Civil  Procedure Act before a board of
three  arbitrators.  The  arbitration  board  shall  consist  of one  arbitrator
appointed by you and one appointed by the Company and one chairman by the two so
chosen. Failing agreement among the arbitrators, the chairman shall be appointed
by the Lord of Chief Justice of the Oslo City Court. The arbitration proceedings
shall be conducted in the Norwegian language. The parties hereby agree to accept
the award resulting from the arbitration  proceedings  described herein as final
and binding upon both parties. The non-prevailing party shall pay the prevailing
party's costs and attorneys' fees incurred in the arbitration.

         35.5 To the extent either party has recourse to judicial, as opposed to
arbitral,  relief under this Agreement, any proceeding seeking such relief shall
be  brought  against  in the  courts of Oslo,  Norway.  and each of the  parties
consents to the  jurisdiction  of such court (and of the  appropriate  appellate
court) in any such action or  proceeding  and waives any objection to venue laid
therein.  Process  in any  action or  proceeding  referred  to in the  preceding
sentence may be served on any party anywhere in the world.

         35.6 This  Agreement,  together with its  Exhibit(s),  constitutes  the
entire agreement  between you and the Company with respect to the subject matter
hereof.  It is entered  into without  reliance on any promise or  representation
other  than those  expressly  contained  herein,  and it cannot be  modified  or
amended except in a writing signed by you and an officer of the Company.

         35.7 This Agreement may be executed in separate  counterparts,  any one
of which need not contain  signatures  of more than one party,  but all of which
taken together will constitute one and the same Agreement.

         35.8 The headings of the sections  hereof are inserted for  convenience
only and shall  not be deemed to  constitute  a part  hereof  nor to affect  the
meaning hereof.

         35.9 This Agreement is intended to bind and inure to the benefit of and
be enforceable by you and the Company, and your respective successors,  assigns,
heirs, executors and administrators,  except that you may not assign any of your
duties hereunder and you may not assign any of your rights hereunder without the
written consent of the Company,  which shall not be withheld  unreasonably.  The
Company may assign its rights and delegate its duties under this  Agreement  (i)
to any other member of the Molecular  Devices Group or any successor in interest
to Skatron in the context of the sale or  disposition of the business of Skatron
or of  substantially  all of its  assets,  or (ii) to any  other  member  of the
Molecular  Devices  Group in the course of any  dissolution  or  liquidation  of
Skatron.

         35.10 This  Agreement  shall be executed  in two  copies,  one for each
party.


                   [REMAINDER OF PAGE INENTIONALLY LEFT BLANK]

                                      25.
<PAGE>

If you choose to accept our offer under the terms described  above,  please sign
this Agreement in the space provided below and return it to me.



SKATRON INSTRUMENTS AS                       ACCEPTED AND AGREED THIS
                                             _______ DAY OF ______________, 1999


By: _______________________________

Print Name: _______________________
                                             ___________________________________
Date: _____________________________          HELGE SKARE

                                             Address:

MOLECULAR DEVICES CORPORATION, as
guarantor of the obligations of Skatron      ___________________________________
Instruments AS under this Agreement

                                             ___________________________________
By: _______________________________

Print Name: _______________________          ___________________________________

Date: _____________________________



                    [SIGNATURE PAGE TO CONSULTING AGREEMENT]

                                      26.
<PAGE>

                                    EXHIBIT A

                               CERTAIN DEFINITIONS


As used in this  Agreement,  the  following  terms have the  meanings  set forth
below:

"Affiliate" means any person or entity directly or indirectly  controlling by or
under common  control with either  party,  where  "control"  means the direct or
indirect  ownership of fifty  percent  (50%) or more of the  outstanding  voting
securities of an entity,  or the right to receive fifty percent (50%) or more of
the profits or earnings of any entity,  or the ability to control  management of
an entity.

"Business"  means the current field of business of the Molecular  Devices Group,
together with any prospective  field of business of the Molecular  Devices Group
which is the  subject  of a public  announcement  by MDC or of which you  become
aware in the course of performing the Consulting Services or by reason of actual
notice delivered to you by the Company.

"Competing Entity" means a corporation or other entity that Competes.

"Compete"  shall mean to  directly  or  indirectly,  engage or invest  in,  own,
manage, operate, finance, control, or participate in the ownership,  management,
operation,  or control of, be employed by,  consult  for, or render  services or
advice to, any entity or any business unit of any entity whose business competes
in whole or in part with the Business of the Molecular Devices Group.

"Confidential  Information"  means  any and all  trade  secrets  concerning  the
business and affairs of the Molecular  Devices  Group,  product  specifications,
data,  know-how,   formulae,   compositions,   processes,   designs,   sketches,
photographs,  graphs, drawings, samples, inventions and ideas, past, current and
planned  research  and  development,   current  and  planned  manufacturing  and
distribution  methods and processes,  customer  lists,  current and  anticipated
customer  requirements,  price lists, market studies,  business plans,  computer
software and programs (including object code and source code), computer software
and database  technologies,  systems,  structures and architectures (and related
processes, formulae, compositions,  improvements, devices, know-how, inventions,
discoveries,  concepts,  ideas,  designs,  methods and  information,  historical
financial  statements,   financial  projections  and  budgets,   historical  and
projected  sales,  capital spending budgets and plans, the names and backgrounds
of key personnel,  personnel training and techniques and materials,  any and all
notes, analysis,  compilations,  studies, summaries, and other material prepared
by or for the Molecular  Devices Group containing or based, in whole or in part,
on any information included in the foregoing, and any other information, however
documented, of the Molecular Devices Group that is a trade secret.

"Molecular  Devices  Group" means the Company and any  Affiliate of the Company,
including its parent corporation, Molecular Devices Corporation.

                                      D-1.


                        INDEMNIFICATION ESCROW AGREEMENT


         THIS  INDEMNIFICATION  ESCROW AGREEMENT ("Escrow Agreement") is entered
into effective as of May 17, 1999 ("Effective Date"), by and among (i) MOLECULAR
DEVICES  CORPORATION.,  a corporation  organized and existing  under the laws of
State of Delaware, United States of America ("Purchaser");  (ii) HELGE SKARE AND
WIEL SKARE  individuals  and residents of Norway  (collectively,  the "Principal
Stockholders");  and (iii)  GREATER BAY TRUST  COMPANY  ("Escrow  Agent"),  with
reference to the following facts:

                                    RECITALS

         A. The Purchaser and the Selling Stockholders have entered into a Stock
and Asset  Purchase  Agreement and related  agreements  dated as of May 17, 1999
(collectively, the "Stock and Asset Purchase Agreement"),  pursuant to which the
Purchaser has agreed to purchase from the Selling Stockholders,  and the Selling
Stockholders have agreed to sell, convey, transfer,  assign and deliver, 314,400
shares of the capital  stock of Skatron  Instruments  AS, a  Norwegian  company,
representing one hundred percent (100%) of the issued and outstanding  shares of
capital stock of that company.

         B.  Pursuant  to  Section  1.2(c)  of  the  Stock  and  Asset  Purchase
Agreement,  the  Purchaser has agreed to deposit with the Escrow Agent an amount
(the "Escrow Amount"), to be held and applied by the Escrow Agent as provided in
this Escrow  Agreement,  equal to Six Hundred  Thousand  United  States  Dollars
(US$600,000).

         C. The parties desire that the Escrow Amount shall be held in escrow by
the Escrow Agent and  distributed  in  accordance  with the  provisions  of this
Escrow Agreement and the Stock and Asset Purchase Agreement.

                                    AGREEMENT

         NOW,  THEREFORE,  in  consideration  of the foregoing  premises and the
representations,  warranties and covenants and agreements  contained herein, and
for other good and valuable consideration,  the receipt and adequacy of which is
hereby acknowledged, the parties hereto agree as follows:

1.       DEFINITIONS

         Capitalized  terms used in this  Escrow  Agreement  without  definition
shall have the respective meanings given to them in the Stock and Asset Purchase
Agreement.

2.       APPOINTMENT OF THE ESCROW AGENT

         The Purchaser and the Principal  Stockholders hereby appoint the Escrow
Agent as escrow agent  hereunder on the terms and  conditions  set forth herein,
and  the  Escrow  Agent  hereby  accepts  such  appointment  on such  terms  and
conditions.

3.       ESTABLISHMENT OF ESCROW

         3.1 Deposit of Escrow  Amount.  Pursuant to Section 1.2(c) of the Stock
and Asset Purchase Agreement, the Purchaser is depositing the Escrow Amount with
the Escrow Agent in immediately available funds. The Escrow Agent shall maintain
the Escrow Amount, as it may be reduced from time to

                                       1.
<PAGE>

time in accordance with the terms of this Agreement, in an account maintained by
it (the "Escrow Account") until disbursed by the Escrow Agent in accordance with
the terms of this Agreement.

         3.2 Acceptance of Appointment. The Escrow Agent hereby agrees to act as
escrow agent and to hold,  safeguard and disburse the Escrow Amount  pursuant to
the terms and conditions hereof.

4.       INVESTMENT OF FUNDS

         Except as the Purchaser and the Principal Stockholders may from time to
time jointly  instruct the Escrow Agent in writing,  the Escrow  Amount shall be
invested  from time to time,  to the extent  possible,  in an  interest  bearing
investment  account  approved by the Purchasers  and the Principal  Stockholders
with the Escrow  Agent,  until  disbursement  of the entire Escrow  Amount.  The
Escrow  Agent is  authorized  to  liquidate  in  accordance  with its  customary
procedures any portion of the Escrow Amount consisting of investments to provide
for payments required to be made under this Escrow Agreement. All profit derived
from any investment of any part of the Escrow Amount, together with all interest
earned on the Escrow Amount, shall be included within the definition of the term
"Escrow Amount" for purposes of this Escrow Agreement.

5.       RETENTION OF ESCROW AMOUNT

         The Escrow  Agent shall hold the Escrow  Amount in escrow to secure the
obligations  of the  Principal  Stockholders  set  forth in the  Stock and Asset
Purchase  Agreement and shall release the Escrow  Amount,  and any part thereof,
only in accordance with the provisions of this Escrow Agreement.

6.       NOTICE  AND  PAYMENT  OF CLAIMS:  RETENTION  AND  RELEASE OF AMOUNTS IN
         ESCROW

         6.1 Purchaser's Notice. At any time during the period commencing on the
date hereof and ending six (6) months  thereafter (the "Holdback  Period"),  the
Purchasers  may  deliver  a notice  signed by an  officer  of the  Purchaser  (a
"Notice") to the  Principal  Stockholders  and the Escrow Agent (i) stating that
the  Principal  Stockholders  are  obligated to make a payment to the  Purchaser
pursuant to Section 5 of the Stock and Asset  Purchase  Agreement  in respect of
any loss,  damage,  deficiency,  liability  or  obligation  included  within the
definition  of "Damages" or otherwise  the subject of Section 5 of the Stock and
Asset Purchase  Agreement  (each, a "Damage"),  and  identifying  which of those
Sections gives rise to the Principal Stockholders'  obligation;  (ii) specifying
in  reasonable  detail the  nature,  the  underlying  facts,  and, to the extent
determinable  at the time of such  Notice,  the  dollar  amount or a good  faith
approximation thereof;  together with the Purchaser's  calculations with respect
thereto (a "Claim Amount") of any claim for  indemnification  (a "Claim") it may
have  under  Section  5 of the Stock and  Asset  Purchase  Agreement;  and (iii)
confirming  that such Claim is not subject to the  limitations  on the Principal
Stockholders'  indemnification obligations set forth in Section 5.3 of the Stock
and Asset Purchase  Agreement.  The Purchasers may make more than one claim with
respect to any underlying state of facts, but shall only be entitled to a single
recovery  in  respect  of any single  Damage or amount  which is the  subject of
Section 5 of the Stock and Asset Purchase Agreement.  The Escrow Agent shall not
inquire into or consider  whether a Claim complies with the  requirements of the
Stock and Asset Purchase Agreement.

         6.2 Principal  Stockholders' Counter Notice. Within ninety (90) days of
receipt of a Notice,  the Principal  Stockholders  may deliver to the Purchasers
and to the Escrow Agent a notice (a "Counter  Notice")  signed by each Principal
Stockholder  delivering such Counter Notice (i) setting forth their acquiescence
to or rejection of the Claim in its totality,  or of their partial acceptance of
the Claim; (ii) specifying that part of the Claim to which  acquiescence is made
and that part  which is  rejected;  (iii) as to each part of the Claim  which is
rejected,  specifying whether the Principal Stockholders reject their

                                       2.
<PAGE>

obligation to indemnify the Purchasers in respect thereof, whether the Principal
Stockholders  accept their  obligation  to indemnify  the  Purchasers in respect
thereof but reject the amount of the Claim or both; provided,  however,  that if
the Principal  Stockholders  have waived their right to dispute their obligation
to indemnify the Purchasers in respect of any Claim under the terms of the Stock
and Asset Purchase Agreement,  they shall not have the right to reject any Claim
on the basis of any such asserted  waiver;  and (iv) setting forth in reasonable
detail the nature of and the facts underlying their rejection of any part of the
Claim.

         6.3  Accepted  Claims.  Any Claim or portion of any Claim  which is not
disputed in a Counter  Notice  timely  delivered by the  Principal  Stockholders
shall be referred to as "Accepted." Failure by the Principal Stockholders timely
to deliver a Counter  Notice in response to any Notice  shall be deemed to be an
acceptance of the validity of the Claim set forth in such Notice and a waiver of
any right to contest the validity or amount of such Claim, and the amount of the
entire Claim shall be deemed "Accepted."

         6.4  Unresolved  Claims.  Any  Claim  or  portion  of a Claim  which is
disputed in a Counter  Notice  shall be resolved in  accordance  with Section 7,
and, pending such resolution,  shall be referred to as "Unresolved."  The entire
amount of any Claim shall be deemed "Unresolved"  between the date of the Notice
setting  forth  such  Claim,  and (i) the  date on  which a  Counter  Notice  is
delivered  in respect of such  Claim,  and (ii) the last date on which a Counter
Notice may be delivered in respect of such Claim under Section 6.2, whichever is
earlier.

         6.5 Retention of Escrow Amount. Except as set forth in Section 6.6, the
Escrow Agent shall retain a portion of the Escrow  Amount  sufficient to pay the
amount of all Unresolved Claims.

         6.6 Release of Escrow Amounts.  The Escrow Agent shall:  (i) pay to the
Purchasers,  on the  ninety-fifth  (95th) day after  receipt of any Notice,  the
Accepted  amount of the Claim set forth in such Notice;  (ii) make such payments
to the Purchasers or the Principal Stockholders as required under Section 7; and
(iii) release to the Principal  Stockholders  at the termination of the Holdback
Period the  Escrow  Amount,  if any,  in excess of the  aggregate  amount of any
Claims which are then Unresolved.

7.       UNRESOLVED CLAIMS

         The Escrow  Agent  shall not pay any amounts in respect of any Claim or
portion thereof which is Unresolved except in accordance with the following:

         7.1 Joint or Counterpart Instructions for Payment of Unresolved Claims.
If the Purchasers and the Principal  Stockholders  resolve their  differences by
negotiation  as to the  portion  of any Claim  which is  Unresolved,  they shall
deliver joint or counterpart  instructions to the Escrow Agent setting forth the
agreement  between them.  The Escrow Agent shall be entitled to rely on any such
joint  or  counterpart  instructions  and  shall  promptly  pay  amounts  to the
Purchasers  or to the  Principal  Stockholders  as set  forth  in the  joint  or
counterpart instructions.

         7.2 Arbitral or Judicial Decision with Respect to Unresolved Claims. If
the  Purchasers  and the  Principal  Stockholders  are not able to resolve their
differences  as to the portion of any Claim which is Unresolved  within  fifteen
(15) days of receipt by the  Purchasers of the Counter Notice  identifying  such
Unresolved Claim amount, either of the Purchasers or the Principal  Stockholders
may initiate  arbitration  to resolve  those  differences  under Section 13. The
Escrow Agent shall pay amounts in respect of any such Unresolved Claim only upon
receipt of (i) joint or  counterpart  instructions  setting  forth an  agreement
between  the  Purchasers  and the  Principal  Stockholders  with  respect to the
payment  of such  Unresolved  Claim  or  part  thereof,  or (ii) an  arbitration
decision or a final  non-appealable  judgment or court  order  presented  by the
Purchasers  or  the  Principal   Stockholders   stating  whether  the  Principal

                                       3.
<PAGE>

Stockholders  have an obligation to indemnify the  Purchasers and specifying the
dollar  amount of such  indemnity  obligation.  The Escrow Agent shall  promptly
provide written notice to the non-presenting  party of such arbitration decision
or court  judgment or order upon receipt  thereof,  and five (5)  Business  Days
thereafter shall pay amounts to the Purchasers or to the Principal  Stockholders
as set forth in the  arbitration  decision or final  non-appealable  judgment or
court order,  unless otherwise enjoined from so doing. Any arbitration  decision
or court  order  shall be  accompanied  by a legal  opinion by  counsel  for the
presenting  party  satisfactory  to the  Escrow  Agent  to the  effect  that the
arbitration  decision  or order is final and  non-appealable.  The Escrow  Agent
shall act on such  arbitration  decision  or court  order and legal  opinion  as
provided herein without further question.

8.       TERMINATION OF ESCROW

         This Escrow Agreement shall terminate when the entire Escrow Amount has
been distributed in accordance with the provisions of this Escrow Agreement.

9.       DUTIES OF THE ESCROW AGENT

         9.1 The  Escrow  Agent  shall not be under any duty to give the  Escrow
Amount held by it  hereunder  any  greater  degree of care than it gives its own
similar  property  and shall not be required to invest any funds held  hereunder
except as directed in this Escrow  Agreement.  Uninvested  funds held  hereunder
shall not earn or accrue interest.

         9.2 The  Escrow  Agent  shall not be  liable,  except for its own gross
negligence or willful  misconduct  and, except with respect to claims based upon
such gross  negligence  or willful  misconduct  that are  successfully  asserted
against the Escrow Agent,  the other parties  hereto shall jointly and severally
as to 50% each  indemnify  and hold harmless the Escrow Agent (and any successor
to the Escrow Agent) from and against any and all losses,  liabilities,  claims,
actions,  damages  and  expenses,   including  reasonable  attorneys'  fees  and
disbursements,  arising out of and in connection  with this  Agreement.  Without
limiting  the  foregoing,  the  Escrow  Agent  shall in no event  be  liable  in
connection  with its investment or reinvestment of any cash held by it hereunder
in  good  faith,  in  accordance  with  the  terms  hereof,  including,  without
limitation,  any  liability  for  any  delays  (not  resulting  from  its  gross
negligence  or willful  misconduct)  in the  investment or  reinvestment  of the
Escrow Amount, or any loss of interest incident to any such delays.

         9.3 The  Escrow  Agent  shall  be  entitled  to rely  upon  any  order,
judgment,  certification,  demand, notice, instrument or other writing delivered
to it hereunder  without  being  required to determine the  authenticity  or the
correctness  of any fact  stated  therein or the  propriety  or  validity of the
service  thereof.  The Escrow Agent may act in reliance  upon any  instrument or
signature believed by it to be genuine and may assume that the person purporting
to give  receipt or advice or make any  statement  or execute  any  document  in
connection  with the  provisions  hereof has been duly  authorized to do so. The
Escrow Agent may conclusively presume that the undersigned representative of any
party hereto  which is an entity other than a natural  person has full power and
authority to instruct  the Escrow  Agent on behalf of that party unless  written
notice to the contrary is delivered to the Escrow Agent.

         9.4 The Escrow  Agent may act  pursuant  to the advice of counsel  with
respect  to any matter  relating  to t. his  Escrow  Agreement  and shall not be
liable for any action  taken or omitted by it in good faith in  accordance  with
such advice.

         9.5 The Escrow  Agent does not have any  interest in the Escrow  Amount
deposited  hereunder  but is  serving  as escrow  holder  only and  having  only
possession  thereof.  Any  payments  of income from the Escrow  Amount  shall be
subject to withholding  regulations  then in force with respect to United States

                                       4.
<PAGE>

Taxes.  The  parties  hereto  will  provide  the Escrow  Agent with  appropriate
Internal Revenue Service Forms W-9 for tax identification  number  certification
or Forms W-8 for foreign status certification.  This Section 9.5 and Section 9.2
shall survive  notwithstanding  any termination of this Escrow  Agreement or the
resignation of the Escrow Agent.

         9.6 The Escrow Agent (and any successor to the Escrow Agent) may at any
time resign as such by  delivering  the Escrow  Amount to any  successor  to the
Escrow Agent jointly  designated by the other parties  hereto in writing,  or to
any court,  whereupon  the Escrow Agent shall be  discharged of and from any and
all  further  obligations  arising  in  connection  with  this  Agreement.   The
resignation  of the  Escrow  Agent  will take  effect on the  earlier of (i) the
appointment  of a successor  escrow  agent (which may include a court of law) or
(ii) the day which is sixty (60) days after the date of  delivery of its written
notice of  resignation to the other parties  hereto.  If at that time the Escrow
Agent has not received a designation  of a successor  escrow  agent,  the Escrow
Agent's sole responsibility after that time shall be to retain and safeguard the
Escrow  Amount until  receipt of a  designation  of successor  escrow agent or a
joint written  disposition  instruction  by the other parties  hereto or a final
non-appealable order of a court of law.

         9.7 In the event of any  disagreement  between the other parties hereto
resulting in adverse claims or demands being made in connection  with the Escrow
Amount,  or any  portion  thereof,  or in the event that the Escrow  Agent is in
doubt as to what  action it should  take  hereunder,  the Escrow  Agent shall be
entitled  to retain  such  portion of the Escrow  Amount  corresponding  to such
adverse  claims or as to which it is in doubt as to what  action it should  take
(the  "Amount  in  Question")  until it has  received  (i) joint or  counterpart
instructions setting forth an agreement between the Purchasers and the Principal
Stockholders with respect to the disposition of the Amount in Question,  or (ii)
an  arbitration  decision  or a final  non-appealable  judgment  or court  order
presented by the  Purchasers  or the  Principal  Stockholders  setting forth the
disposition of the Amount in Question.  The Escrow Agent shall promptly  provide
written notice to the non-presenting  party of any arbitration decision or final
non-appealable  judgment  or court  order  upon  receipt  thereof,  and five (5)
Business Days thereafter shall pay amounts to the Purchasers or to the Principal
Stockholders  as set forth in the arbitration  decision or final  non-appealable
judgment  or  court  order,   unless  otherwise  enjoined  from  so  doing.  Any
arbitration  decision or court order shall be  accompanied by a legal opinion by
counsel for the presenting party  satisfactory to the Escrow Agent to the effect
that the arbitration  decision or order is final and non-appealable.  The Escrow
Agent shall act on such arbitration decision or court order and legal opinion as
provided herein without further question.

         9.8 The Escrow Agent's fees and expenses for acting as the Escrow Agent
hereunder  are set  forth  in  Schedule  A  hereto.  Except  as may be  provided
elsewhere in this Escrow  Agreement,  the Escrow Agent's fees and expenses shall
be shared equally by the Purchasers and the Principal Stockholders.

         9.9  Except as  required  by law,  no  printed  or other  matter in any
language  (including,  without limitation,  prospectuses,  notices,  reports and
promotional  material)  that  mentions  the Escrow  Agent's  name or the rights,
powers,  or  duties of the  Escrow  Agent  shall be issued by the other  parties
hereto or on such parties' behalf unless the Escrow Agent shall first have given
its specific written consent thereto.

10.      LIMITED RESPONSIBILITY

         This Escrow Agreement expressly sets forth all the duties of the Escrow
Agent with respect to any and all matters pertinent hereto. No implied duties or
obligations  shall be read into this Escrow Agreement  against the Escrow Agent.
The Escrow Agent shall not be bound by the provisions of any agreement among the
other parties hereto except this Escrow Agreement.

                                       5.
<PAGE>

11.      OWNERSHIP FOR TAX PURPOSES

         The Principal  Stockholders and the Purchasers agree that, for purposes
of any Taxes based on income, the Principal Stockholders shall be treated as the
owner of the Escrow Amount, and that the Principal  Stockholders will report all
income,  if any, that is earned on, or derived from, the Escrow Amount as income
in the taxable year or years in which such income is properly includible and pay
any taxes attributable thereto.

12.      NOTICES

         All notices,  requests, demands or other communications provided herein
shall be made in writing and shall be deemed to have been duly  delivered (i) if
delivered personally  overnight,  including by reputable  international  courier
service  five (5)  Business  Days after  delivery to the courier or, if earlier,
upon delivery  against a signed receipt  therefor or (ii) upon  transmission  by
facsimile  or  telecopier,  which  transmission  is  confirmed,  in either  case
addressed  to the party to be notified at the address set forth below or at such
other  address as such party  shall have  notified  the other Party  hereto,  by
notice given in conformity with this Section 12.

        if to the Purchasers:             Molecular Devices Corporation
                                          1311 Orleans Drive
                                          Sunnyvale, CA 94089
                                          Attn: President
                                          Facsimile: 408-747-3601

        with required copies to:          Cooley Godward llp
                                          Five Palo Alto Square
                                          3000 El Camino Real
                                          Palo Alto, CA  94306-2155
                                          Attention:  Thomas M. Shoesmith
                                          Facsimile: 650-857-0663

        if to the Principal Stockholders: Helge Skare
                                          Weil Skare
                                          Tord Pedersens gt 38
                                          3014 Drammen
                                          Norway

        with required copies to:          Wilson Sonsini Goodrich & Rosati, P.C.
                                          650 Page Mill Road
                                          Palo Alto, CA 94306
                                          Attn: Roger E. George
                                          Facsimile:  650-845-5000

        if to the Escrow Agent:           Greater Bay Trust Company
                                          P.O. Box 1740
                                          Palo Alto, CA 94302
                                          Attn: Anna Paiva
                                          Fax: 650-473-1326

                                       6.
<PAGE>

13.      DISPUTE RESOLUTION AND ARBITRATION

         Any  dispute,  controversy  or  claim  between  the  Purchaser  and the
Principal  Stockholders  arising out of or relating to this Escrow  Agreement or
the  performance,  breach or  termination  thereof will be settled in accordance
with the  process  described  in  Sections  6.3 and 6.4 of the  Stock  and Asset
Purchase Agreement.

14.      JURISDICTION; SERVICE OF PROCESS

         This Agreement  shall be construed in accordance  with, and governed in
all respects by, the internal  laws of the State of California  (without  giving
effect to principles of conflicts of laws). Subject to the provisions of Section
13, any dispute  between  the parties  connected  with this  Agreement  shall be
submitted  to the sole  jurisdiction  of the courts of the State of  California,
County of Santa Clara, or, if it has or can acquire jurisdiction,  in the United
States  District  Court for the  Northern  District of  California.  Each of the
parties  consent to the  jurisdiction  of such  courts  (and of the  appropriate
appellate  courts) in any such action or proceeding  and waives any objection to
venue  laid  therein.  Process in any action or  proceeding  referred  to in the
preceding sentence may be served on any party anywhere in the world.

15.      COUNTERPARTS

         This Escrow Agreement may be executed in one or more counterparts, each
of  which  will be  deemed  to be an  original  and all of,  which,  when  taken
together, will be deemed to constitute one and the same.

16.      SECTION HEADINGS

         The  headings of sections in this Escrow  Agreement  are  provided  for
convenience only and will not affect its construction or interpretation.

17.      WAIVER

         The rights and remedies of the parties to this Agreement are cumulative
and  not  alternative.  Neither  the  failure  nor any  delay  by any  party  in
exercising any right,  power,  or privilege  under this Escrow  Agreement or the
documents referred to in this Escrow Agreement will operate as a waiver of, such
right, power, or privilege, and no single or partial exercise of any such right,
power,  or privilege will preclude any other or further  exercise of such right,
power, or privilege or the exercise of any other right, power, or privilege.  To
the maximum  extent  permitted by applicable  law, (i) no claim or right arising
out of this  Escrow  Agreement  or the  documents  referred  to in  this  Escrow
Agreement can be  discharged  by one party,  in whole or in part, by a waiver or
renunciation of, the claim or right unless in writing signed by the other party;
(ii) no waiver  that may be given by a party  will be  applicable  except in the
specific instance for which it is given; and (iii) no notice to or demand on one
party  will be deemed to be a waiver of any  obligation  of such party or of the
right of, the party giving such notice or demand to take further  action without
notice or demand as provided in this Escrow Agreement or the documents  referred
to in this Escrow Agreement.

18.      EXCLUSIVE AGREEMENT AND MODIFICATION; NONASSIGNABILITY

         This  Escrow  Agreement,  together  with the Stock  and Asset  Purchase
Agreement, supersedes all prior agreements among the parties with respect to the
subject matter thereof and those agreements constitute (along with the documents
referred to  therein),  a complete and  exclusive  statement of the terms of the
agreement  between the parties with respect to its subject  matter.  This Escrow
Agreement  may not

                                       7.
<PAGE>

be  amended  except by a  written  agreement  executed  by the  Purchasers,  the
Principal  Stockholders  and the Escrow Agent.  This Escrow Agreement may not be
assigned by any of the Purchasers or the Principal Stockholders, except by will,
the laws of intestacy, or by other operation of law.

19.      SUCCESSORS AND ASSIGNS

         The provisions of this Escrow Agreement shall be binding upon and inure
to the benefit of the parties and their respective successors and assigns.

         IN WITNESS  WHEREOF,  the parties  have  executed  and  delivered  this
Agreement as of the date first written above.



MOLECULAR DEVICES CORPORATION:               THE PRINCIPAL STOCKHOLDERS:


By:  /s/ Joseph D. Keegan                    By:      /s/Helge Skare
Its:     Chief Executive Officer                 -------------------------------
                                                      Helge Skare


                                             By:      /s/Wiel Skare
                                                 -------------------------------
                                                      Wiel Skare


ESCROW AGENT:

Greater Bay Trust Co.



By:  /s/Anna Paiva
   ------------------------------------
Its: Vice President and Trust Officer


              [SIGNATURE PAGE TO INDEMNIFICATION ESCROW AGREEMENT]

                                       8.
<PAGE>

                                  SCHEDULE "A"


                        Schedule of Fees of Escrow Agent


Annual Fee:                         $2,500.00


Fee per disbursement:               $   25.00


Note:  additional  fees may be required in the event of unusual  occurrences  or
requests for assistance on the part of Greater Bay Trust Company.

                                       9.


                                                                    Exhibit 99.1

Tuesday May 18, 4:30 pm Eastern Time

Company Press Release

SOURCE: Molecular Devices Corporation

                 Molecular Devices Announces the Acquisition of
                             Skatron Instruments AS

SUNNYVALE,  Calif., May 18 /PRNewswire/ -- Molecular Devices Corporation Nasdaq:
MDCC - news) today  announced  that it has acquired  Skatron  Instruments  AS, a
Norwegian  company,   for  $7  million  in  cash.  Skatron  designs,   develops,
manufactures  and markets a complete line of  state-of-the  art microwell  plate
washers and other related tools, including cell harvesters,  focused on the drug
discovery and high-throughput  screening  marketplace.  Skatron has consistently
been an innovator in the  microwell  plate  washer  marketplace,  and with their
Embla line of  washers,  was the first to offer  both 384 and 1536 well  washing
capabilities.  Skatron had  revenues of  approximately  $4.2 million in calendar
year 1998 and employs approximately 20 people in Norway.

Commenting  on the  acquisition,  Dr.  Joseph D.  Keegan,  President  and CEO of
Molecular Devices, said, "We are very excited about this acquisition and believe
that the  transaction is  strategically  significant on a number of levels.  The
addition of the Skatron  products  effectively adds a new washer product line to
MDC and helps us continue to broaden our product portfolio. We also believe that
we have an opportunity to achieve distribution synergies by using MDC's existing
direct sales and marketing  infrastructure  to distribute the Skatron  products.
The Embla  washers  are  highly  complementary  with MDC's  recently  introduced
Spectramax Gemini and FLIPR 384 high-throughput  screening  products.  Skatron's
emphasis  on  innovation  and quality  also fits very well with our  strategy of
focusing  on  innovation  and  advancing  the  leading  edge of  drug  discovery
research.  Finally,  this acquisition  helps us continue to make progress on our
goal of becoming a more significant,  strategic  supplier of complete  solutions
for our customers in the drug discovery marketplace."

The  acquisition  will be accounted for as a purchase.  In  connection  with the
transaction,  Molecular  Devices  expects to record a one-time charge during the
second  quarter of 1999 for the  portion of the total  purchase  price  which is
related to in-process research and development.

Molecular  Devices  Corporation  designs,  develops,  manufactures  and  markets
proprietary,  high-performance,  bioanalytical  measurement  systems,  including
software  and   consumables,   designed  to  accelerate  and  improve  the  cost
effectiveness  of the drug  discovery  and  development  process.  The Company's
systems  have  applications  in many

                                       1
<PAGE>

aspects of life science,  including the therapeutic  development  process,  from
drug discovery and clinical research through manufacturing and quality control.

Except  for the  historical  information  contained  herein,  this news  release
contains  forward-looking  statements  that  involve  risks  and  uncertainties,
including timely development, ability to achieve distribution synergies, ability
to  develop  innovative  solutions,  acceptance  and  pricing  of new  products,
maintenance  of strong  growth  rates and general  economic  conditions  as they
affect the Company's customers, as well as the other risks detailed from time to
time in the Company's SEC reports,  including the annual report on Form 10-K for
the year ended December 31, 1998.

                                       2


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