STOCK PURCHASE AGREEMENT dated as of January 20, 1999 (the "Agree ment") by
and  between  JOEL  A.  KRAMER   ("Seller")   and  TELEBYTE   TECHNOLOGY,   INC.
("Purchaser"). RECITALS :

     Seller owns  262,635  Common  Shares (the  "Shares") of the  Purchaser  and
options (the  "Options")  to purchase  10,000  Common  Shares of Purchaser  (the
"Underlying Shares").

     Upon the terms and conditions of this Agreement, (i) Seller desires to sell
to Purchaser, and Purchaser desires to purchase from Seller, the Shares and (ii)
Seller and Purchaser desire to cancel the Options.

     NOW,  THEREFORE,  in  consideration  of the  recitals  and  the  respective
covenants,  representations,  warranties and agreements  herein  contained,  the
parties hereto hereby agree as follows:

                                    ARTICLE I

                                SALE AND PURCHASE

1.1 Sale And Purchase of Shares. At the Closing (as hereinafter defined), Seller
shall sell and deliver to the Purchaser,  and the Purchaser  shall purchase from
Seller,  upon and subject to the terms and conditions of this Agreement,  all of
Seller's right,  title and interest in and to all of the Shares,  free and clear
of any and all claims, liens, pledges, options, charges, restrictions,  security
interests,  encumbrances or other rights of third parties,  whether  voluntarily
incurred or arising by operation of law, and including,  without limitation, any
agreement to give any of the foregoing in the future (collectively, "Liens").

1.2  Cancellation  of  Options.  Subject  to the  terms and  conditions  of this
Agreement,  at the Closing,  Seller shall execute and deliver to Purchaser  such
instruments,  documents and agreements as  contemplated  by Sections 5.5 and 5.7
hereof to effect the cancellation and termination of the Options.

1.3      Purchase Price.

         1.3.1  Purchase  Price.  Subject  to the terms of this  Agreement,  the
purchase price for the Shares,  cancellation of Options and Seller's restrictive
covenant contemplated by the Termination Agreement, as hereinafter defined shall
be an aggregate of One Million Seventy-Five  Thousand One Hundred Ninety Dollars
($1,075,190) (the "Purchase Price").

         1.3.2 Payment of Purchase Price. Subject to the terms and conditions of
this  Agreement,  at the  Closing,  Purchaser,  as full  payment of the Purchase
Price, will deliver to the Seller a bank or certified check in the amount of the
Purchase Price (the "Closing Payment").

                                        1






     1.3.3  Allocation of Purchase Price.  The Purchase Price shall be allocated
hereunder as follows:

                        Dollar Amount             Allocation

                         $867,510                 The Shares

                         $  17,680                Cancellation of the Options

                         $190,000                 The restrictive covenant 
                                                  contemplated by the
                                                  Termination Agreement, as 
                                                  hereinafter defined.

It is agreed that the  apportionments  set forth above were  arrived at by arm's
length negotiation and properly reflect the respective fair market values of the
foregoing.  Seller and Purchaser  each hereby  covenants and agrees that it will
not take a position on any income tax  return,  before any  governmental  agency
charged with the  collection  of any income tax, or in any  judicial  proceeding
that is in any way inconsistent with the terms of this Section 1.3.3.

                                   ARTICLE II

                    REPRESENTATIONS AND WARRANTIES OF SELLER

                  Seller makes the following  representations  and warranties to
Purchaser:

2.1      Shares.

               (a) Seller owns the Shares and Options  free and clear of any and
          all Liens.

               (b) The Shares being sold and Options being cancelled pursuant to
          this Agreement constitute all of the issued and outstanding shares and
          options to purchase  shares of  Purchaser  owned  beneficially  and of
          record by Seller.

               (c) The  Seller is the sole  record and  beneficial  owner of the
          Shares and Options,  the Seller has good and  marketable  title to the
          Shares and Options and the  absolute  and  unqualified  right to sell,
          transfer  and  deliver  the  Shares to the  Purchaser  and  cancel the
          Options;  and the delivery of the Shares to the Purchaser  pursuant to
          the  provisions  hereof will transfer  valid title  thereto,  free and
          clear of any and all Liens.

               (d)  There are no  subscriptions,  options,  warrants,  rights or
          calls or other  commitments,  understandings  or  agreements  to which
          Seller  is a party or by  which he is  bound,  or of which  Seller  is
          aware,  calling for the  transfer,  sale or other  disposition  of the
          Shares or Options.

                                                         2





               (e) Giving effect to the  transactions  contemplated  hereby (and
          without  giving  such  effect),  to the  best of  Seller's  knowledge,
          Seller's  spouse  and  children  own in the  aggregate,  of record and
          beneficially, no more than five (5%) percent of the Purchaser's issued
          and outstanding shares of Common Stock.

               (f) The  Options  have not  been  exercised,  sold,  transferred,
          assigned or otherwise disposed of or cancelled.

               (g) For purposes of this Agreement, beneficial ownership shall be
          determined  in  accordance  with  Rule  13d-3  promulgated  under  the
          Securities Exchange Act of 1934, as amended(the "Exchange Act").

2.2 Consents. No consents of governmental or other regulatory agencies and/or of
other  parties are required to be received by or on the part of Seller to enable
Seller  to  enter  into  and  carry  out  this  Agreement  and the  transactions
contemplated hereby to be performed by Seller.

2.3 Authority;  Binding Nature of Agreement.  Seller has the power to enter into
this  Agreement  and to carry  out his  obligations  hereunder.  This  Agreement
constitutes  the valid and binding  obligation of Seller and is  enforceable  in
accordance with its terms.

2.4 No  Breach.  Neither  the  execution  and  delivery  of this  Agreement  nor
compliance by Seller with any of the provisions  hereof nor the  consummation of
the transactions contemplated hereby will:

               (a) violate or result in the material  breach or termination  of,
          or otherwise  give any  contracting  party the right to terminate,  or
          declare a default under,  the terms of any material  contract to which
          Seller is a party or by which he is bound;

               (b) result in the  creation of any Lien upon the Shares,  Options
          or Underlying Shares;

               (c)  violate any  judgment,  order,  injunction,  decree or award
          against,  or  binding  upon,  Seller or upon the  Shares,  Options  or
          Underlying Shares; or

               (d) violate any law or regulation of any jurisdiction relating to
          Seller.

2.5 No Commitments or Liabilities.  During the twelve month period ending on the
date hereof (and if the Closing  occurs,  on the Closing  Date),  Seller has not
entered into any transaction outside the ordinary course of business, consistent
with  past  practice  , which is not  reflected  in the  books  and  records  of
Purchaser  and  which  involves  in  excess of  Twenty-Five  Thousand  ($25,000)
Dollars.

2.6  Litigation;   Compliance  with  Law.  There  are  no  actions,  suits,
proceedings or governmental investigations relating to Seller or any of Seller's
assets pending or, to the knowledge

                                        3





of Seller,  threatened,  or any order, injunction,  award or decree outstanding,
against  Seller or against or  relating  to any of  Seller's  assets;  and there
exists  no  basis  for  any  such   action,   suit,   proceeding,   governmental
investigation,  order,  injunction,  award or decree which would have a material
adverse  effect  on Seller or  Seller's  ownership  of the  Shares,  Options  or
Underlying Shares.

2.7 Transactions  With Affiliates.  Except as set forth in Schedule 2.7 attached
hereto and made a part hereof,  there is no loan,  lease,  contract,  agreement,
commitment,  understanding,  obligation, payment or other transaction, verbal or
written, fulfilled or unfulfilled (collectively,  "Agreements") between or among
Seller  and/or  Seller's  spouse and/or any  affiliate,  as such term is defined
under the Securities Act of 1933, as amended (the  "Securities  Act")  (together
with a Seller's  spouse,  in each case,  an  "Affiliate")  on the one hand,  and
Purchaser,  on the other.  Except for ownership of up to two (2%) percent of the
total outstanding capital stock of any entity the securities of which are listed
on a national  securities  exchange or quoted on the Nasdaq system,  Seller does
not own,  directly or  indirectly,  any  interest  in, or serve as an officer or
director of, or in any similar capacity for, any competitor,  customer, provider
or supplier of or to the  Purchaser or any  organization  which has an Agreement
with Purchaser.

2.8 Purchaser's Property. Schedule 2.8(a) attached hereto and made a part hereof
contains  a  true,  accurate  and  complete  description  of  all  tangible  and
intangible  personal property owned,  leased,  licensed or loaned by, to or from
Purchaser (including,  without limitation, keys, documents, Purchaser credit and
telephone calling cards,  building or Purchaser  identification  cards, cellular
telephones,  car service authorization and identification  cards,  computers and
related equipment,  software,  automobiles,  stationary,  business cards and all
other  Information  as defined in Section 12.3 hereof) and in the  possession of
Seller or any Affiliate (collectively,  "Purchaser's Property"). Schedule 2.8(b)
hereto lists certain  property which the parties  acknowledge does not belong to
Purchaser.

2.9 Brokers.  Seller has not engaged,  consented to, or  authorized  any broker,
finder, investment banker or other third party to act on its behalf, directly or
indirectly,   as  a  broker  or  finder  in  connection  with  the  transactions
contemplated by this Agreement.

2.10 Untrue or Omitted Facts. No representation, warranty or statement by Seller
in this Agreement  contains any untrue statement of a material fact, or omits to
state a fact  necessary  in order to make such  representations,  warranties  or
statements not  materially  misleading.  Without  limiting the generality of the
foregoing,  there is no fact  known to  Seller  that  has had,  or which  may be
reasonably  expected  to have,  a  materially  adverse  effect on Seller  and/or
Seller's ownership and/or transfer  hereunder of the Shares and/or  cancellation
of the Options that has not been disclosed in this Agreement.


                                        4





                                   ARTICLE III

                   REPRESENTATIONS AND WARRANTIES OF PURCHASER

                  Purchaser makes the following  representations  and warranties
to Seller:

3.1 Consents.  No consents of governmental and other regulatory  agencies and of
other third  parties are  required to be received by or on the part of Purchaser
to enable it to enter  into and carry out this  Agreement  and the  transactions
contemplated hereby.

3.2  Authority;  Binding  Nature of Agreement.  Purchaser has the power to enter
into this Agreement and to carry out its obligations  hereunder.  This Agreement
constitutes  the  valid  and  binding  obligation  of  Purchaser,  has been duly
authorized by the Purchaser's Board of Directors (or a special committee thereof
empowered  to act on behalf of the Board of  Directors)  and is  enforceable  in
accordance with its terms.

3.3 No  Breach.  Neither  the  execution  and  delivery  of this  Agreement  nor
compliance by Purchaser with any of the provisions  hereof nor the  consummation
of the transactions contemplated hereby will:

          (a) violate or result in the  material  breach or  termination  of, or
     otherwise give any contracting  party the right to terminate,  or declare a
     default under,  the terms of any material  contract to which Purchaser is a
     party or by which it is bound;

          (b) violate any judgment, order, injunction,  decree or award against,
     or binding upon, Purchaser; or

          (c)  violate any law or  regulation  of any  jurisdiction  relating to
     Purchaser.

3.4 Brokers.  Purchaser has not engaged, consented to, or authorized any broker,
finder, investment banker or other third party to act on its behalf, directly or
indirectly,   as  a  broker  or  finder  in  connection  with  the  transactions
contemplated by this Agreement.

3.5 Untrue or  Omitted  Facts.  No  representation,  warranty  or  statement  by
Purchaser in this Agreement contains any untrue statement of a material fact, or
omits  to  state  a fact  necessary  in  order  to  make  such  representations,
warranties  or  statements  not  materially  misleading.  Without  limiting  the
generality of the  foregoing,  there is no fact known to Purchaser that has had,
or which may be  reasonably  expected to have,  a materially  adverse  effect on
Purchaser and/or Purchaser's  purchase hereunder of the Shares that has not been
disclosed in this Agreement.




                                        5





                                   ARTICLE IV

                              PRE-CLOSING COVENANTS

4.1  Seller  Covenants.  Seller  hereby  covenants  that from and after the date
hereof and until the Closing or earlier termination of this Agreement:

          (a) The Shares.  Seller will not, without the prior written consent of
     Purchaser:  sell, deliver,  exercise, cancel or otherwise transfer or agree
     or commit  to sell or  deliver,  exercise,  cancel  or  otherwise  transfer
     (whether   through  the   granting  of  options,   warrants,   commitments,
     subscriptions,  rights to purchase or otherwise) the Shares, Options and/or
     Underlying Shares, as the case may be, or agree to do any of the foregoing.

          (b) No Breach.

               (i) Seller  will (A) use his best  efforts to assure  that all of
          his representations and warranties contained herein are true as of the
          Closing  as if  repeated  at and as of such  time,  that no  breach or
          default   shall   occur  with   respect  to  any  of  his   covenants,
          representations or warranties contained herein that has not been cured
          by the Closing and that all  conditions to  Purchaser's  obligation to
          enter into and complete the Closing which are required or contemplated
          to be satisfied by Seller are  satisfied in a timely  manner;  (B) not
          voluntarily  take any action or do anything  which will cause a breach
          of or default respecting such covenants, representations or warranties
          or would impede the satisfaction of such conditions;  and (C) promptly
          notify Purchaser of any event or fact which represents or is likely to
          cause such a breach or default or result in such an impediment.

               (ii) Without  limiting the  generality of the  foregoing,  Seller
          agrees to use his best  efforts  to take,  or cause to be  taken,  all
          actions,  and to do,  or  cause  to be  done,  all  things  reasonably
          necessary,  proper or advisable under  applicable laws and regulations
          to consummate and make effective the transactions contemplated by this
          Agreement.

          (c) Actions by Seller. Except for Agreements where the total aggregate
     value of goods and services  and/or  payments to be made to or by Purchaser
     are less than Twenty-Five  Thousand ($25,000) Dollars (with respect to each
     such  agreement  or  series  of  related  agreements)  and which are in the
     ordinary course of business consistent with past practice,  Seller will not
     without the prior written  consent of  Purchaser,  enter into any Agreement
     by, or on behalf of, Purchaser.  In any event, Seller shall conduct himself
     only  in the  ordinary  course  of  business  as  President  of  Purchaser,
     consistent with past practice.

          (d) No Negotiations.  Seller shall not, directly or indirectly,  enter
     into or conduct  negotiations,  or enter into any  contract,  commitment or
     other  agreement,  for the sale or  possible  sale of any of the  Shares or
     Options or Underlying Shares.



                                        6





                                    ARTICLE V

                           CONDITIONS PRECEDENT TO THE
                        OBLIGATION OF PURCHASER TO CLOSE

         The obligation of Purchaser to consummate the transactions contemplated
hereby is subject to the  fulfillment,  prior to or at the Closing  (except with
regard to the condition set forth in Section 5.8 hereof, which must be satisfied
within the time indicated therein), of each of the following conditions, any one
or more of which may be waived by Purchaser (except when the fulfillment of such
condition is a requirement of law):

5.1 Representations and Warranties. All representations and warranties of Seller
contained in this Agreement and in any written  statement  (including  financial
statements), exhibit, certificate, schedule or other document delivered pursuant
hereto or in connection with the transactions  contemplated hereby shall be true
and correct in all material  respects as at the Closing  Date, as if made at the
Closing and as of the Closing Date.

5.2  Covenants.  Seller shall have performed and complied with all covenants and
agreements  required by this  Agreement to be performed or complied  with by him
prior to or at the Closing.

5.3 Certificate.  Purchaser shall have received a certificate, dated the Closing
Date, signed by the Seller,  as to the satisfaction of the conditions  contained
in Sections 5.1 and 5.2 hereof.

5.4 The  Shares.  Purchaser  shall  have  received  (i) a stock  certificate  or
certificates  representing the Shares, duly endorsed in blank, or accompanied by
a stock power duly executed in blank, in either case with  signatures  medallion
guaranteed and all necessary  transfer tax stamps affixed and cancelled and (ii)
such other  documentation  as may be required by the transfer agent of Purchaser
to give effect to the transfer (collectively, the "Certificate").  Seller agrees
to cure any  deficiencies  with respect to the  endorsement of the  certificates
representing  the Shares  and/or  the  execution  of the stock  powers and other
documents delivered in connection with the transfer.

5.5 Options.  Purchaser  shall have  received  the  documents  constituting  the
Options marked "cancelled" by Seller.

5.6 Consulting Agreement. Seller shall have executed and tendered to Purchaser a
Consulting  Agreement  in, or  substantially  in,  the form  attached  hereto as
Exhibit A (the "Consulting Agreement").

5.7 Termination Agreement.  Seller shall have executed and tendered to Purchaser
a Termination  Agreement (the "Termination  Agreement") in, or substantially in,
the form attached hereto as Exhibit B.


                                        7





5.8 Release.  Seller shall have executed and delivered,  at least seven (7) days
prior to the Closing, an Agreement and Release in, or substantially in, the form
attached hereto as Exhibit C (which Seller hereby acknowledges,  he had at least
twenty-one  (21) days prior to the date hereof) and such release  shall not have
been  revoked  by  Seller  and  Purchaser  shall  have  received   documentation
satisfactory to it, in its sole and absolute  discretion,  which shall be final,
conclusive  and binding,  that such  Agreement  and Release has not been revoked
(collectively, the "Release Documents")

5.9  Fairness  Opinion.  Purchaser  shall have  received an opinion  from a firm
satisfactory to it to the effect that the transactions  contemplated  hereby are
fair, from a financial viewpoint, to the shareholders of Purchaser.

5.10 Financing Contingency.  Purchaser shall have obtained financing so that the
total aggregate amount of funds immediately  available from Purchaser's  lending
institution  shall be not less than One Million  Seven  Hundred  Fifty  Thousand
($1,750,000)  Dollars (of which One Million ($1,000,000) Dollars shall have been
funded  on the  Closing  Date on  account  of the  Purchase  Price)  upon  terms
satisfactory to Purchaser,  in Purchaser's sole and absolute  discretion,  which
shall be final, conclusive and binding.

5.11  Purchaser's  Property.  Seller and all  Affiliates  shall have returned to
Purchaser all  Purchaser's  Property.  Seller shall have delivered a certificate
certifying same (the "Property Certificate").

5.12 Resignation of Robert Kramer. Purchaser shall have received the resignation
of  Robert  Kramer  from  all  capacities  with  Purchaser,   including  without
limitation, as a Director of Purchaser, effective as of the Closing Date.

5.13 Form 4.  Purchaser  shall have  received from Seller a duly executed Form 4
reflecting,  among other things, the transactions contemplated hereby ("Seller's
Form 4").

5.14 No Actions.  No action,  suit,  proceeding or investigation shall have been
instituted,  and be continuing  before a court or before or by a governmental or
other  regulatory  body  or  agency,  or  shall  have  been  threatened  and  be
unresolved,  to  restrain  or to  prevent or to obtain  any  material  amount of
damages in respect of, the carrying out of the transactions contemplated hereby.

5.15 Consents; Licenses and Permits. Seller and Purchaser,  respectively,  shall
have obtained all consents,  licenses and permits of third  parties,  including,
without  limitation,  regulatory  authorities,  necessary for the performance by
each  of them of all of  their  respective  obligations  under  this  Agreement,
including,  without  limitation,  the  transfer  of the  Shares as  contemplated
hereby,  and such other  consents,  if any, to prevent (i) the  occurrence  of a
breach  under any  agreement  of Seller and  Purchaser,  respectively,  with any
person,  the  termination  of which  would  have a  material  adverse  effect on
Purchaser's  business or (ii) any liability or obligation of Purchaser  becoming
due

                                        8





or being  subject  to  becoming  due with the  passage of time or on notice as a
result  of the  performance  of this  Agreement,  any  other  provision  of this
Agreement to the contrary notwithstanding.

5.16 Nevada Statutes.  This Agreement and acquisition of the Shares contemplated
hereby shall be in compliance with Chapter 78 of the Nevada Revised Statutes.

5.17 Actions.  All actions  necessary to authorize the  execution,  delivery and
performance of this Agreement by Seller and the consummation of the transactions
contemplated hereby shall have been duly and validly taken and Seller shall have
full  power  and  right to  consummate  the  transactions  contemplated  by this
Agreement.

                                   ARTICLE VI

                    CONDITIONS PRECEDENT TO THE OBLIGATION OF
                                 SELLER TO CLOSE

         The  obligation of Seller to consummate the  transactions  contemplated
hereby is subject to the fulfillment, prior to or at the Closing, of each of the
following  conditions,  any one or more of which may be waived by Seller (except
when the fulfillment of such condition is a requirement of law):

6.1  Representations  and  Warranties.  All  representations  and  warranties of
Purchaser contained in this Agreement, exhibit,  certificate,  schedule or other
document  delivered  pursuant  hereto  or in  connection  with the  transactions
contemplated hereby shall be true and correct as at the Closing Date, as if made
at the Closing and as of the Closing Date.

6.2  Covenants.  Purchaser  shall have performed and complied with all covenants
and agreements required by this Agreement to be performed or complied with by it
prior to or at the Closing.

6.3  Certificate.  Seller shall have received a  certificate,  dated the Closing
Date, signed by the Chief Financial Officer of Purchaser, as to the satisfaction
of the conditions contained in Sections 6.1 and 6.2 hereof.

6.4 Closing  Payment.  Purchaser  shall have  tendered  the  Closing  Payment to
Seller.

6.5 Consulting Agreement.  Purchaser shall have executed and tendered to Seller,
the Consulting Agreement.

6.6 Termination Agreement.  Purchaser shall have executed and tendered to Seller
the Termination Agreement.

6.7 No Actions. No action,  suit,  proceeding,  or investigation shall have been
instituted,  and be  continuing,  before a court or by a  governmental  or other
regulatory body or agency, or have been

                                        9





threatened,  and be unresolved,  to restrain or prevent,  or obtain any material
amount  of  damages  in  respect  of,  the  carrying  out  of  the  transactions
contemplated hereby.

6.8 Consents;  Licenses and Permits. Purchaser shall have obtained all consents,
licenses and permits of third parties, including, without limitation, regulatory
authorities, necessary for the performance by it of all of its obligations under
this Agreement.

6.9  Corporate  Actions.  All actions  necessary  to  authorize  the  execution,
delivery and performance of this Agreement by Purchaser and the  consummation of
the transactions  contemplated hereby shall have been duly and validly taken and
Purchaser  shall  have  full  power  and right to  consummate  the  transactions
contemplated by this Agreement.

                                   ARTICLE VII

                                     CLOSING

7.1 Location.  The closing (the "Closing")  provided for herein shall take place
at the offices of Certilman Balin Adler & Hyman,  LLP, 90 Merrick  Avenue,  East
Meadow,  New York 11554 at 10:00 A.M. three (3) days following the  satisfaction
of the  conditions  set forth in  Articles V and VI hereof  but not latter  than
January 20, 1999, or on such date and at such place as may be mutually agreed to
by the  parties.  Such date is referred  to in this  Agreement  as the  "Closing
Date."

7.2 Items to be Delivered to Purchaser.  At or prior to the Closing, Seller will
deliver or cause to be delivered to Purchaser:

                  (a)      the certificate required by Section 5.3 hereof;

                  (b)      the Certificate required by Section 5.4 hereof;

                  (c)      the Options required by Section 5.5 hereof;

                  (d)      the Consulting Agreement required by Section 5.6 
                           hereof;

                  (e)      the Termination Agreement required by Section 5.7 
                           hereof;

                  (f)      the Release Documents required by Section 5.8 hereof;

                  (g)      Purchaser's   Property  and the  Property Certificate
                           required by Section 5.11 hereof;

                  (h)      Seller's Form 4 required by Section 5.13 hereof; and


                                       10





                  (i)      such  other  certified  resolutions,   documents  and
                           certificates  as  are  required  to be  delivered  to
                           Purchaser  by or on behalf of Seller  pursuant to the
                           provisions  of  this  Agreement  or  which  otherwise
                           confirm that all of the  conditions  precedent to the
                           obligation of Purchaser to close have been satisfied.

7.3 Items to be Delivered to Seller.  At the Closing,  Purchaser will deliver or
cause to be delivered to Seller:

               (a) the certificate required by Section 6.3;

               (b) the Closing Payment required by Section 6.4 hereof;

               (c) the Consulting Agreement required by Section 6.5 hereof;

               (d) the Termination Agreement required by Section 6.6 hereof;

               (e) certified  copies of all corporate action required by Section
               6.9 hereof; and

               (f) such other certified resolutions,  documents and certificates
               as are  required to be  delivered  by  Purchaser  pursuant to the
               provisions of this Agreement or otherwise confirm that all of the
               conditions  precedent to the  obligation  of Seller to close have
               been satisfied.


                                  ARTICLE VIII

                         RESTRICTIONS ON CERTAIN ACTIONS
                                    BY SELLER

8.1 Restrictions on Purchases,  Sales and Other Actions by Seller. Seller agrees
that he will not, and will not cause or permit any of his Affiliates directly or
indirectly,  through one or more entities,  without the prior written consent of
Purchaser, to:

                  (a) Acquisition and Voting Restrictions.  Acquire, directly or
indirectly,  by purchase or otherwise,  the  beneficial  ownership of any voting
securities  of  Purchaser,  or any  options,  rights or  warrants to acquire any
voting  securities  of  Purchaser  or proxies to vote any voting  securities  of
Purchaser.  Any  voting  securities  of  Purchaser  owned by the  Seller and his
Affiliates shall be voted as follows:  any voting  securities of Purchaser owned
by  Seller  and  his   Affiliates   shall  be  voted  in  accordance   with  the
recommendation  of the Board of Directors of Purchaser on all matters  presented
to shareholders of Purchaser, and voting securities of Purchaser owned by Seller
and his Affiliates  shall always be voted as present for purposes of obtaining a
quorum at any meeting of shareholders.


                                       11





                  (b) Option and Sales  Restrictions.  Grant any option or other
right to any Person,  as such term is defined in Section 2(2) of the  Securities
Act.

                  (c)      Restrictions Upon Certain Actions.

                         (i) Solicit or  encourage  any Person,  as such term is
                    defined in Section  2(2) of the  Securities  Act, to solicit
                    any  proxies  with  respect  to  any  voting  securities  of
                    Purchaser under any circumstances, or become a "participant"
                    in  any  "election  contest"  relating  to the  election  of
                    Directors  of  Purchaser  (as  such  terms  are used in Rule
                    14a-11 of Regulation 14A under the Exchange Act), or seek to
                    advise or influence any person with respect to the voting of
                    any voting securities of Purchaser;

                         (ii) Act together with any other Person for the purpose
                    of  acquiring,  holding,  voting or  disposing of any voting
                    securities  of  Purchaser  or any options or other rights to
                    acquire any such securities;

                         (iii) Solicit any person for the approval of,  initiate
                    or propose one or more shareholder proposals with respect to
                    Purchaser,  as  described  in Rule 14a-8 under the  Exchange
                    Act;

                         (iv)  Advise,  encourage  or assist  any  Person in the
                    acquisition of any voting securities of Purchaser or options
                    or rights to acquire any such securities; or

                         (v) Act alone or  together  with any Person to acquire,
                    or propose a business  combination  with,  Purchaser,  or to
                    control or influence the  management,  Board of Directors or
                    policies of Purchaser.

8.2 Termination of Restrictions. The restrictions set forth in Section 8.1 shall
terminate five (5) years from the Closing Date.

                                   ARTICLE IX

                              POST-CLOSING MATTERS

9.1  Further  Assurances.  On and after the  Closing  Date,  upon the request of
Purchaser,  Seller shall take all such further actions and execute,  acknowledge
and deliver all such further  instruments  and  documents as may be necessary or
desirable  to convey and  transfer  to, and vest in,  Purchaser,  and to protect
Purchaser's  right,  title and interest in and to, and  enjoyment of, the Shares
intended to be assigned,  transferred,  conveyed and delivered  pursuant to this
Agreement.

9.2 Section 16 Obligations.  Seller shall file Seller's Form 4 on a timely basis
in accordance  with  applicable  rules and  regulations  of the  Securities  and
Exchange  Commission.  Unless Seller notifies Purchaser  otherwise in writing at
least ten (10) days prior to the date any filing other than

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Seller's Form 4 may be due, Seller hereby authorizes Purchaser to assume that no
filings are required to be made by Seller under Section 16 of the Exchange Act.

                                    ARTICLE X

                  SURVIVAL OF REPRESENTATIONS; INDEMNIFICATION

10.1  Survival.  The parties  agree that their  respective  representations  and
warranties contained in this Agreement shall survive the Closing.

10.2     Indemnification.

         10.2.1 General Indemnification Obligation of Seller. From and after the
Closing,  Seller will reimburse,  indemnify and hold harmless  Purchaser and its
respective successors and assigns (an "Indemnified Purchaser Party") against and
in respect of:

                  (a) any and all damages,  losses,  deficiencies,  liabilities,
costs and expenses incurred or suffered by any Indemnified  Purchaser Party that
result from, relate to or arise out of any misrepresentation, breach of warranty
or  nonfulfillment of any agreement or covenant on the part of Seller under this
Agreement,  or from any  misrepresentation  in or omission from any certificate,
schedule,  statement,  document or  instrument  furnished to Purchaser  pursuant
hereto; and

                  (b)  any  and  all  actions,   suits,   claims,   proceedings,
investigations,  demands, assessments, audits, fines, judgments, costs and other
expenses (including, without limitation,  reasonable legal fees) incident to any
of the foregoing or to the enforcement of this Section 10.2.1.

         10.2.2 General Indemnification  Obligation of Purchaser. From and after
the Closing,  Purchaser will  reimburse,  indemnify and hold harmless Seller and
its respective  successors and assigns (an  "Indemnified  Seller Party") against
and in respect of:

                  (a) any and all damages,  losses,  deficiencies,  liabilities,
costs and  expenses  incurred or suffered by any  Indemnified  Seller Party that
result from, relate to or arise out of any misrepresentation, breach of warranty
or  nonfulfillment  of any agreement or covenant on the part of Purchaser  under
this  Agreement,   or  from  any  misrepresentation  in  or  omission  from  any
certificate,  schedule,  statement,  document or instrument  furnished to Seller
pursuant hereto; and

                  (b)  any  and  all  actions,   suits,   claims,   proceedings,
investigations,  demands, assessments, audits, fines, judgments, costs and other
expenses (including, without limitation,  reasonable legal fees) incident to any
of the foregoing or to the enforcement of this Section 10.2.2.


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         10.2.3       Method of Asserting Claims, Etc.

                  (a) In the event  that any claim or  demand  for which  Seller
would be liable to an Indemnified  Purchaser Party hereunder is asserted against
or sought to be collected from an Indemnified  Purchaser Party by a third party,
the  Indemnified  Purchaser  Party shall notify  Seller of such claim or demand,
specifying  the nature of such  claim or demand and the amount or the  estimated
amount  thereof  to the  extent  then  feasible  (which  estimate  shall  not be
conclusive  of the final amount of such claim and demand) (the "Claim  Notice").
Seller shall  thereupon,  at his sole cost and expense,  defend the  Indemnified
Purchaser   Party   against  such  claim  or  demand  with  counsel   reasonably
satisfactory to Purchaser.

                  (b) Seller shall not, without the prior written consent of the
Indemnified  Purchaser  Party,  consent to the entry of any judgment against the
Indemnified  Purchaser  Party or enter into any  settlement or compromise  which
does not  include,  as an  unconditional  term  thereof  (i.e.,  there  being no
requirement that the Indemnified Purchaser Party pay any amount of money or give
any  other  consideration),  the  giving by the  claimant  or  plaintiff  to the
Indemnified  Purchaser  Party of a  release,  in form and  substance  reasonably
satisfactory  to the Indemnified  Purchaser  Party, as the case may be, from all
liability in respect of such claim or litigation.  If any Indemnified  Purchaser
Party  desires  to  participate  in,  but  not  control,  any  such  defense  or
settlement, it may do so at its sole cost and expense.

                  (c) In the event an Indemnified  Purchaser Party should have a
claim  against  Seller  hereunder  that does not involve a claim or demand being
asserted  against  or  sought  to be  collected  from it by a third  party,  the
Indemnified Purchaser Party shall send a Claim Notice with respect to such claim
to Seller.

                  (d) All claims for  indemnification  by an Indemnified  Seller
Party under this  Agreement  shall be asserted and resolved under the procedures
set forth  hereinabove by  substituting in the  appropriate  place  "Indemnified
Seller  Party" for  "Indemnified  Purchaser  Party" and  variations  thereof and
"Purchaser" for "Seller".

10.3 Payment. Upon the determination of the liability under Section 10.2 hereof,
the  Seller   shall  pay  to   Purchaser,   within  ten  (10)  days  after  such
determination, the amount of any claim for indemnification made hereunder.

10.4 Other Rights and Remedies Not Affected.  The indemnification  rights of the
parties under this Article X are  independent  of and in addition to such rights
and  remedies as the parties may have at law or in equity or  otherwise  for any
misrepresentation,  breach of warranty or failure to fulfill  any  agreement  or
covenant hereunder on the part of any party hereto, including without limitation
the right to seek specific performance, rescission or restitution, none of which
rights or remedies shall be affected or diminished hereby.



                                       14





                                   ARTICLE XI

                             TERMINATION AND WAIVER

11.1 Termination.  Anything herein or elsewhere to the contrary notwithstanding,
this  Agreement  may be  terminated  and the  transactions  provided  for herein
abandoned at any time prior to the Closing:

          (a) By  mutual  consent  of the  Special  Committee  of the  Board  of
     Directors of  Purchaser,  currently  consisting of Jamil Sopher and Kenneth
     Schneider, and Seller;

          (b) By  Purchaser  if any of the  conditions  set  forth in  Article V
     hereof  shall not have been  fulfilled  on or prior to January  20, 1999 or
     shall become  incapable of  fulfillment,  in each case except as such shall
     have been the result, directly or indirectly,  of any action or inaction by
     Purchaser  or its  officers and  Directors  (other than Joel Kramer  and/or
     Robert Kramer), and shall not have been waived; or

          (c) By Seller, if any of the conditions set forth in Article VI hereof
     shall not have been fulfilled on or prior to January 20, 1999 or shall have
     become  incapable  of  fulfillment,  in each case except as such shall have
     been the  result,  directly  or  indirectly,  of any action or  inaction by
     Seller and shall not have been waived.

         If this  Agreement is terminated  as described  above,  this  Agreement
shall be of no further force and effect,  without any liability or obligation on
the part of any of the parties except for any liability which may arise pursuant
to  Sections  12.3  hereof  or as a  result  of a  party's  willful  failure  to
consummate the transactions contemplated hereby.

11.2 Waiver.  Any condition to the  performance of the parties which legally may
be waived on or prior to the Closing Date may be waived at any time by the party
entitled to the benefit  thereof by action taken or  authorized by an instrument
in writing  executed by the relevant party or parties.  The failure of any party
at any time or times to require  performance of any provision hereof shall in no
manner  affect the right of such party at a later time to enforce  the same.  No
waiver by any  party of the  breach of any  term,  covenant,  representation  or
warranty contained in this Agreement as a condition to such party's  obligations
hereunder shall release or affect any liability  resulting from such breach, and
no waiver of any  nature,  whether by conduct or  otherwise,  in any one or more
instances,  shall be deemed to be or construed as a further or continuing waiver
of  any  such  condition  or  of  any  breach  of  any  other  term,   covenant,
representation or warranty of this Agreement.



                                       15





                                   ARTICLE XII

                            MISCELLANEOUS PROVISIONS

12.1 Sales, Transfer and Documentary Taxes. Seller shall pay all federal,  state
and local sales,  documentary  and other transfer taxes, if any, due as a result
of the purchase and sale of the Shares in accordance herewith.

12.2  Expenses.  Each of the  parties  shall  bear  its or his own  expenses  in
connection herewith.

12.3 Confidential  Information.  Seller hereby agrees that he and his Affiliates
and representatives at all times hereafter will hold in a fiduciary capacity and
in strict confidence all information, data and documents received from Purchaser
(collectively,  "Information")  and will not,  without the consent of Purchaser,
use  or  disclose,  directly  or  indirectly,  the  Information  in  any  manner
whatsoever, in whole or in part.  Notwithstanding the foregoing, the obligations
under this Section 12.3 to maintain such confidentiality  shall not apply to any
Information  (a)  that is in the  public  domain  at the time  furnished  by the
disclosing party, (b) that becomes in the public domain  thereafter  through any
means other than as a result of any act of the receiving party or of its agents,
officers,   directors  or  shareholders  which  constitutes  a  breach  of  this
Agreement, or (c) that is required by applicable law to be disclosed.

12.4 Equitable Relief. The parties agree that the remedy at law in any breach or
threatened  breach of the  provisions  of  Article  IV or  Section  12.3 will be
inadequate  and the aggrieved  party shall be entitled to  injunctive  relief to
compel  the  breaching  party to  perform or refrain  from  action  required  or
prohibited thereunder.

12.5 Publicity. Seller hereby agrees that no publicity,  release or other public
announcement concerning the transactions contemplated by this Agreement shall be
issued by him without the advance approval of both the form and substance of the
same by the  Purchaser  and its counsel,  which shall be final,  conclusive  and
binding.  Seller further  agrees that the terms of this  Agreement  shall not be
divulged by Seller,  unless such terms have been publicly released in accordance
with the provisions  hereof.  Purchaser shall provide Seller with any release or
filing   disclosing  this   transaction  and  Seller  shall  have  a  reasonable
opportunity to comment thereon prior to dissemination.

12.6 Entire  Agreement.  This  Agreement,  including  the schedules and exhibits
attached  hereto,  which are a part hereof,  constitutes the entire agreement of
the parties  with respect to the subject  matter  hereof.  The  representations,
warranties,  covenants  and  agreements  set forth in this  Agreement and in the
schedules   or  exhibits   delivered   pursuant   hereto   constitute   all  the
representations,  warranties,  covenants and  agreements of the parties and upon
which the parties have relied,  shall not be deemed waived or otherwise affected
by any investigation made by any party hereto and, except as may be specifically
provided herein, no change, modification,  amendment, addition or termination of
this  Agreement or any part thereof  shall be valid unless in writing and signed
by or on behalf of the party to be charged therewith.


                                       16





12.7 Notices. Any and all notices or other communications or deliveries required
or  permitted  to be given or made  pursuant  to any of the  provisions  of this
Agreement  shall be deemed to have been duly given or made for all purposes when
hand delivered or sent by certified or registered mail, return receipt requested
and postage prepaid, overnight mail, nationally recognized overnight courier, or
telecopier as follows:

         If to Purchaser at:

         Telebyte Technology, Inc.
         270 Pulaski Road
         Greenlawn, New York 11740
         Telecopier Number: (516) 385-8184

         With a copy to:

         Certilman Balin Adler & Hyman, LLP
         90 Merrick Avenue
         East Meadow, New York  11554
         Attention: Steven J. Kuperschmid, Esq.
         Telecopier Number: (516) 296-7111

         If to Seller, at:

         Joel A. Kramer
         4 Sycamore Drive
         Woodbury, New York 11797
         Telecopier Number: (516) 367-7296

         With a copy to:

         Rivkin Radler & Kremer
         EAB Plaza
         Uniondale, New York 11556-0111
         Attention: Barry R. Shapiro, Esq.
         Telecopier Number: (516) 357-3333

or at such other  address as any party may specify by notice  given to the other
party in accordance with this Section 12.7. No amendment, modification, consent,
notice,  waiver or other  communication  required  or  permitted  to be given by
Purchaser  hereunder shall be effective or binding upon Purchaser if executed on
behalf of Purchaser only by Seller and/or Robert Kramer.

12.8 Choice of Law;  Severability.  This  Agreement  shall be  governed  by, and
interpreted and construed in accordance with, the laws of the State of New York,
excluding choice of law principles thereof. In the event any clause,  section or
part of this Agreement shall be held or declared to be void,  illegal or invalid
for any reason, all other clauses, sections or parts of this Agreement which

                                       17




can be effected  without such void,  illegal or invalid clause,  section or part
shall nevertheless continue in full force and effect.

12.9 Successors and Assigns; No Assignment. This Agreement shall be binding upon
and inure to the  benefit of the  parties and their  respective  successors  and
assigns;  provided,  however, that neither party may assign any of its rights or
delegate  any of its  duties  under this  Agreement  without  the prior  written
consent of the other.

12.10  Headings.  The headings or captions  under sections of this Agreement are
for  convenience  and reference only and do not in any way modify,  interpret or
construe  the  intent of the  parties or affect  any of the  provisions  of this
Agreement.

                  WITNESS the  execution of this  Agreement as of the date first
above written.



                                       /s/ Joel A. Kramer 
                                       ----------------------------           
                                       Joel A. Kramer, Individually

                                       TELEBYTE TECHNOLOGY, INC.

                                       By: /s/ Kenneth S. Schneider            

                                       Name: Kenneth S. Schneider              
                                                  (Please Print)

                                       Title: Senior Vice President            
                                       


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