Document:

EXHIBIT 4.3 CONSULTING AGREEMENT

      CONSULTING AGREEMENT as of the 8th day of October 2001, between R-Tec
Technologies, Inc., a New Jersey corporation having a place of business at 37
Ironia Road, Flanders, NJ 07836 ("R-Tec") and Jack H. Halperin, Esq., having an
office at 317 Madison Avenue, Suite 1421, New York, NY 10017 ("Halperin").

                               W I T N E S S E T H

      WHEREAS, The Company wishes to engage Halperin upon the terms and
conditions herein provided;

      NOW, THEREFORE, in consideration of the premises and of the respective
covenants and agreements of the parties herein contained, the parties hereto
agree as follows:

1. Term of Engagement. The engagement of Halperin by the Company under the
Agreement shall commence on October 8, 2001 (the "Commencement Date") and shall
continue thereafter unless terminated for a period of one year (the "Term").

2. Services. Halperin shall render legal services for the Company, including the
preparation of Registration Statements on Form S-8.

3. Compensation.

      (a) Fees. Halperin shall be issued 20,000 shares of the Company's common
stock payable in full upon the execution of this Agreement, which shall consist
of review of SEC filings for the period ending December 31, 2001. Compensation
for the remainder of the term shall be as agreed upon by R-Tec and Halperin.

      (b) Expenses. During the term of its engagement hereunder, Halperin shall
be entitled to receive reimbursement for all reasonable out-of-pocket expenses
incurred by him in performing services hereunder within the limits of authority
which may be established by the Board of Directors, provided that Halperin
properly accounts for such expenses in accordance with Company policy.

4. Miscellaneous. This Agreement contains the entire agreement between R-Tec and
Halperin with respect to the subject matter hereof and there have been no oral
or other agreements of any kind whatsoever as a condition, precedent or
inducement to the signing of this Agreement or otherwise concerning this
Agreement or the subject matter hereof. Any waiver of any breach of any terms or
conditions of this Agreement shall not operate as a waiver of any other breach
of such terms or conditions or any other term or condition, nor shall any
failure to enforce any provision hereof on any one occasion operate as a waiver
of such provision or of any provision hereof or a waiver of the right to enforce
such provision on any subsequent occasion. This Agreement may not be amended,
nor shall any waiver, change, modification, consent or discharge be effected,
except by an instrument in writing executed by or on behalf of the party against
whom enforcement of any such amendment, waiver, change, modification, consent or
discharge is sought. If any provision of this Agreement shall be held or deemed
to be, or shall in fact be, invalid, inoperative, or unenforceable as applied to
any particular case in any jurisdiction or jurisdictions, or in all
jurisdictions or in all cases, because of the conflict of any provision with any
constitution or statute or rule of public policy or for any other reason, such
circumstance shall not have the effect of rendering the provision or provisions
in question invalid, inoperative, or unenforceable in any jurisdiction or in any
<PAGE>

other case or circumstance or of rendering any other provision or provisions
herein contained invalid, inoperative or unenforceable to the extent that such
other provisions are not themselves actually in conflict with such constitution,
statute or rule of public policy, but this Agreement shall be reformed and
construed in any such jurisdiction or case as if such invalid, inoperative or
unenforceable provision had never been contained herein, and such provision
reformed so that it would be valid, operative and enforceable to the maximum
extent permitted in such jurisdiction or in such case. This Agreement shall be
governed by and construed and enforced in accordance with the laws of the State
of New York. Any notices required or permitted by this Agreement shall be in
writing and personally delivered or mailed by certified or registered mail,
return receipt requested, addressed to the parties at their addresses set forth
above, or to such other addresses as one party may specify to the other party,
from time to time, in writing.

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

                                       R-Tec Technologies, Inc.

                                       BY:
                                          -----------------------------------
                                          Philip Lacqua, President

                                          -----------------------------------
                                          Jack H. Halperin<PAGE>

<TABLE>
<CAPTION>
                                                                                                      EXHIBIT 4.1

                                                    INCORPORATED UNDER THE LAWS
                                                      OF THE STATE OF NEVADA
<S>                                                                                         <C>
          COMMON                                                                                        PAR VALUE
           STOCK                                                                                          $.001

                                                      INDUSTRIAL DATA SYSTEMS
                                                            CORPORATION

             [NUMBER]                                                                                   [SHARES]
           C

   THIS CERTIFICATE IS TRANSFERABLE                                                         SEE REVERSE FOR CERTAIN DEFINITIONS
IN CHICAGO, ILLINOIS AND NEW YORK, NEW YORK                                                          CUSIP 456053 10 7

This Certifies that

is the record holder of

                                      FULLY PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK OF
                                                INDUSTRIAL DATA SYSTEMS CORPORATION

transferable on the books of the Corporation in person or by duly authorized attorney upon surrender of this certificate properly
endorsed. This certificate is not valid unless countersigned by the Transfer Agent and registered by the Registrar.

   Witness the facsimile seal of the Corporation and the facsimile signatures of its duly authorized officers.

                                                                                  Dated

   /s/ William A. Coskey
                                                                                         COUNTERSIGNED AND REGISTERED:
       PRESIDENT                                                                         HARRIS TRUST AND SAVINGS BANK
                                                                                                                     TRANSFER AGENT
   /s/ Hulda L. Coskey                              [SEAL APPEARS HERE]                                               AND REGISTRAR
                                                                                         BY
       SECRETARY                                                                                                AUTHORIZED SIGNATURE
</TABLE>
<PAGE>

     The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM--as tenants in common        UNIF GIFT MIN ACT--______ Custodian _______
TEN ENT--as tenants by the entireties                   (Cust)           (Minor)
JT TEN --as joint tenants with right              Under Uniform Gifts to Minors
         of survivorship and not as               Act___________________________
         tenants in common                                     (State)

    Additional abbreviations may also be used though not in the above list.

For Value Received, ______________________ hereby sell, assign and transfer unto

PLEASE INSERT SOCIAL SECURITY OR OTHER
   IDENTIFYING NUMBER OF ASSIGNEE

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PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING POSTAL ZIP CODE, OF
ASSIGNEE

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                                                                         Shares
------------------------------------------------------------------------
of the Capital Stock represented by the within Certificate, and do hereby
irrevocably constitute and appoint

                                                                        Attorney
----------------------------------------------------------------------
to transfer the said stock on the books of the within-named Corporation, with
full power of substitution in the premises.

Dated
      --------------------------------

                                        X
                                         ---------------------------------------
                                                       (SIGNATURE)
             NOTICE
THE SIGNATURE(S) TO THIS ASSIGNMENT MUST
CORRESPOND WITH THE NAME(S) AS WRITTEN
UPON THE FACE OF THE CERTIFICATE IN
EVERY PARTICULAR WITHOUT ALTERATION OR
ENLARGEMENT OR ANY CHANGE WHATEVER.

                                        X
                                          --------------------------------------
                                                       (SIGNATURE)

THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS,
STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN
AN APPROVED SIGNATURE GUARANTEE PROGRAM), PURSUANT TO S.E.C. RULE 17Ad-15.
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SIGNATURE(S) GUARANTEED BY:

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