AGREEMENT

     THIS AGREEMENT is entered into this 18th day of June,  1996, by and between
Computer Control  Corporation,  a New Jersey  corporation  having offices at 230
West  Parkway,  Pompton  Plains,  New  Jersey  07444  ("Computer  Control")  and
Envirometrics  Development  Company,  Inc., a South Carolina  corporation having
offices   at   1019   Bankton   Drive,   Charleston,    South   Carolina   29406
("Envirometrics").

     WHEREAS,  Computer  Control and  Envirometrics  are parties to an Agreement
dated  March 26, 1992 (the 111992  Agreement"),  pursuant to which,  among other
things,  Computer  Control granted to Envirometrics a license to manufacture and
sell  electronic  readers  ("Readers")  for  use  with  Quantitative  Photometry
Monitors  ("Monitors")  and  Envirometrics  agreed to pay  royalties to Computer
Control on sales of Monitors and Readers; and

     WHEREAS,    Computer   Control   formally   notified   Envirometrics   that
Envirometrics  has failed to make certain royalty payments  required pursuant to
the 1992  Agreement  and has  failed to  furnish  certain  quarterly  statements
required to compute the royalties due under the 1992 Agreement;

     NOW, THEREFORE,  in consideration of the mutual agreements  hereinafter set
forth, the parties hereto do hereby agree as follows:

     1. All  capitalized  terms used in this  Agreement  which are not otherwise
defined herein shall have the meanings ascribed to them in the 1992 Agreement.

     2. Unless  Envirometrics  shall have breached its  obligations  pursuant to
this Agreement,  Computer  Control shall not exercise its right to terminate the
1992 Agreement or the license granted thereunder until the Payment Deadline. For
purposes of this Agreement, the "Payment Deadline" shall mean the first to occur
of July 31, 1996 or completion of the sale of securities of Envirometrics,  Inc.
contemplated  by that  certain  letter  agreement  dated  June 6,  1996  between
Envirometrics, Inc., J.D. Feltman & Co. and Carter, Kaplan & Co.

     3.  Envirometrics  shall,  on or  before  the  Payment  Deadline,  pay  the
following  amounts to Computer  Control:  (a) All  royalties  due under the 1992
Agreement,  (b) all amounts due on the invoices  listed on Schedule A hereto and
(c)  interest  at the rate of 9% per annum on all  minimum  royalties  due under
Section 2.c. of the 1992 Agreement from the date such amounts became due.

     4.  Envirometrics  shall, not later than June 21,  1996,furnish to Computer
Control an accounting of all royalties payable pursuant to clauses 1(c) and 1(d)
of the 1992 Agreement.  Such  accounting  shall include a statement of the gross
revenues of  Envirometrics  during each calendar  quarter  (commencing  with the
second  calendar  quarter  of 1992)  from the  sale of  Quantitative  Photometry
Monitors and from the sale,  leasing and rental of Readers and of the  royalties
due pursuant to clauses 1(c) and 1(d) of the 1992  Agreement  for each  calendar
quarter.

     5.  The  cost of any  work  required  to  modify  or  redesign  the  Reader
(including but not limited to redesign work required to keep the current version
of the Reader functional, such as redesign work caused by the discontinuation of
manufacture  of the  computer  chip used in the  current  version of the Reader)
shall be borne by  Envirometrics.  Computer  Control shall have no obligation to
perform such work unless and until it shall enter into a written  agreement with
Envirometrics to do so.

     Notwithstanding  the foregoing,  Computer Control agrees to enter a maximum
of five (5) new hazard-specific  conversion  algorithms into the Reader computer
program  at no charge  to  Envirometrics  during  each  year  that  Readers  are
manufactured  by Computer  Control for  Envirometrics.  Envirometrics  agrees to
supply the  algorithms  in equation form ready for  integration  into the Reader
computer program. If necessary,  other algorithms (as selected by Envirometrics)
will be deleted  from the Reader  computer  program to allow  sufficient  memory
space for the new algorithms.  If Envirometrics wishes to expand memory space to
accommodate additional algorithms, the design will be modified at the expense of
Envirometrics in accordance with the preceding paragraph.

     6. The 1992 Agreement is hereby amended as follows:

     a. The Monitor Royalty Period is hereby extended through June 30, 2000.
     b. The Reader Royalty Period is hereby extended through June 30, 2000.

     c. From and after the last to occur of the Payment Deadline or the date any
payment under the 1992  Agreement  shall become due and payable,  interest shall
accrue  thereon at the  "default  rate"  until such  amount  shall be paid.  The
"default rate" shall mean the "prime rate" plus 3 percentage  points; the "prime
rate" shall mean the rate of interest per annum  published  from time to time as
the "prime  rate" in the Wall Street  Journal  (New York  edition).  In no event
shall the rate of interest on late payments  exceed the maximum rate  authorized
by applicable law.  Computer Controls right to receive interest on late payments
shall be in  addition  to,  and not in lieu of,  any and all  other  rights  and
remedies  which  Computer  may have at law or in equity or pursuant to any other
provision of the 1992  Agreement in the event of a breach of the 1992  Agreement
by Envirometrics.

     d.  Section  12 of the 1992  Agreement  is  hereby  amended  to read in its
entirety as follows:

     12.  The  following  shall  constitute  Events of Default  hereunder:  (i)
Failure by either  party  hereto to make any payment due  hereunder  on the date
such  payment is due,  provided  such  failure is not cured within ten (10) days
following the giving of written notice of such breach to the breaching  party by
the  non-breaching  party; (ii) failure by Envirometrics to pay any other amount
owed to Computer  Control as identified in Section 3 of the Agreement dated June
18, 1996 between  Computer Control and  Envirometrics  when such payment is due,
provided such failure is not cured within ten (1 0) days following the giving of
written notice of such breach to  Envirometrics by Computer  Control;  (iii) the
material  breach  by either  party  hereto of any  covenant,  representation  or
warranty  contained  herein,  other than  covenants to pay money,  provided such
breach is not cured  within  thirty  (30) days  following  the giving of written
notice of such breach to the breaching party by the non-breaching party; or (iv)
if either party hereto should ever be adjudged a bankrupt.  For purposes of this
Agreement,  an entity  shall be  deemed an  affiliate  of  another  entity if it
controls, is controlled by or is under common control with such other entity. If
an  Event  of  Default  shall  have  occurred  and  shall  be  continuing,   the
non-defaulting  party may, by written notice to the defaulting party,  terminate
this  Agreement,  whereupon  both  parties  shall  be  relieved  of all  further
obligations  hereunder  and the  license  granted  in  Section  4  hereof  shall
immediately  terminate.  The remedy  provided for above shall be in addition to,
and not in lieu of, any and all other rights and remedies which either party may
have at law or in equity or pursuant to any other provision of this Agreement in
the event of a breach of this Agreement by the other party.  Except as expressly
provided herein or in any subsequent  agreement  between the parties,  breach of
any other agreement between the parties shall not constitute an Event of Default
hereunder;  without  limiting the foregoing,  it is expressly agreed that clause
(ii) of this  Section 12 is limited  only to  failures  to pay amounts due under
Section 3 of the June 18, 1996 Agreement.

     e. Section 17 of the 1992 Agreement is hereby ended to read in its entirety
as follows:

     17.  All  notices,  claims,  certificates,  requests,  demands  and  other
communications  hereunder  shall be in writing  and shall be deemed to have been
duly  given  if  delivered  personally,  sent  by  facsimile  transmission  (and
confirmed by mail) or mailed (by  registered or certified  mail,  return receipt
requested and postage prepaid) to the parties as follows:

               If to Computer Control:

                       Computer Control Corporation
                       230 West Parkway, Unit 1
                       Pompton Plains, New Jersey 07444
                       Attention: Mr. Harvey Padden, President
                       Fax No: 201-839-7445
               with copy to:
                      Stuart M. Geschwind, Esq.
                      Williams, Caliri, Miller & Otley
                      1428 Route 23
                      Wayne, New Jersey 07470
                      Fax No: 210-694-0302

                    If to Seller:
                      Envirometrics Development Company, Inc.
                      1019 Bankton Drive
                      Charleston, South Carolina 29406
                      Attention:  Mr. W. Elliott, President
                      Fax No: 803-740-1721

    or to such other address or facsimile number as the party to whom notice is
to be given may have  furnished  to the other  parties in writing in  accordance
herewith.  Any such communication shall be deemed to have been given on the date
it is received by the  addressee  (as  evidenced,  in the case of  registered or
certified  mail,  by the date noted on the return  receipt. Provided  that any
communication  sent by facsimile  transmission  and confirmed by mail,  shall be
deemed to have been given at the time of transmission."

     f. The following is hereby added to the Agreement as a new paragraph 24:

     24. In the event that  Envirometrics  shall  default in the payment of any
amount  due  hereunder,  Envirometrics  pay to  Computer  Control  the  costs of
collection of such amount, including reasonable attorney's fees."

     g. The following is hereby added to the Agreement as a new paragraph 25:

     25.  Notwithstanding  any  provision of this  Agreement  to the  contrary:
Computer  Control  shall  not be  required  to  disclose  to  Envirometrics  any
technical  know-how,  trade  secrets  or  proprietary  information  required  to
manufacture  Readers  at  any  time  that  any  amount  owed  by  Envirometrics,
Envirometrics, Inc. or any other affiliate of Envirometrics to Computer Control,
BIOS  International,  Inc. or any other affiliate of Computer Control (including
but not limited to royalties under the 1992 Agreement and invoices for products)
shall be overdue."

     7. Subject to the modifications  hereinabove set forth, the 1992 Agreement
is hereby ratified and confirmed in all respects.

     IN WITNESS  WHEREOF,  the parties  hereto have executed  this  agreement in
duplicate.

                                   ENVIROMETRICS DEVELOPMENT COMPANY, INC.

                                   Signed By:____________________
                                   Name:
                                   Title:
                                   COMPUTER CONTROL CORPORATION

                                   Signed By:_____________________
                                                Harvey Padden
                                                President
                                     CONSENT
           The undersigned hereby consents to the foregoing Agreement.

                               ENVIROMETRICS, INC.

                                   Signed By:
                                      Name:
                                     Title:


                                   SCHEDULE A

The following invoices issued by Computer Control:
Invoice Number    Date    Invoice                Amount Owed
003944           3/11/96 Envirometrics, Inc.    $7,120.00
003949           3/11/96 Envirometrics, Inc.    10,724.00
003952           3/27/96 Envirometrics, Inc.       205.05
003964           5/21/96 Envirometrics, Inc.       410.04