Document:

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                                                                   EXHIBIT 10.18

                         O'REILLY CONSULTING AGREEMENT

     THIS AGREEMENT is effective as of April 1, 1999, among Eltrax Systems, Inc.
(the "Company"), Montana Corporation (the "Consulting Firm"), and William P.
O'Reilly (the "Consultant"), with reference to the following facts:

    A.  The Consultant serves as a member of, and as Chairman of, the Board of
        Directors of the Company (the "Board");
    B.  The Consultant is an employee of the Consulting Firm; and
    C.  The Company wishes to engage the Consultant to perform certain
        consulting services in order to benefit from the Consultant's management
        experience and abilities, and the Consultant wishes to accept such
        engagement, all upon the terms and conditions set forth in this
        Agreement.

The Company, the Consulting Firm, and the Consultant agree as follows:

1.  Engagement. The Company hereby engages the Consultant to perform various
    ----------
management duties as may be agreed to from time to time between the Board and
the Consultant.  Such duties will include participation in senior management and
assisting the Company in identifying and pursuing possible acquisitions, joint
ventures, marketing agreements and other growth opportunities.  The Consultant
agrees to accept such engagement.

2.  Duties.
    ------

a)  The Consultant agrees to consult with and to provide services to the Company
    that are reasonably requested by the Board, consistent with the Consultant's
    expertise and experience and consistent with the Consultant's current
    duties. Initially, the Consultant shall serve as the Chief Executive Officer
    and Chairman of the Board of the Company.

b)  This Agreement and the Consultant's engagement shall not limit the
    Consultant from providing services to any other organization or from
    engaging in any other activities, as long as such services or activities are
    not in conflict with the interests of the Company.

3.  Term.  The term of this Agreement will commence on April 1, 1999, and will
    ----
continue for a period of three (3) years, unless earlier terminated in
accordance with Section 4 below.  The term of this Agreement will automatically
renew for additional two-year terms unless written notice of election to not
renew is given by either party to the other at least one year before the end of
the term.

4.  Termination.
    -----------

a)  The Company may terminate this Agreement for cause upon written notice to
    the Consultant specifying the cause for termination. For purposes of this
    Agreement, "cause" will mean (i) dishonesty, fraud, gross misrepresentation,
    embezzlement or material and deliberate injury or attempted injury, in each
    case related to the Company or its business, (ii) any unlawful or criminal
    activity of a serious nature affecting the Company, (iii) any willful breach
    of duty, habitual neglect of duty or unreasonable job performance after
    written notice and a thirty (30) day period to cure, or (iv) a material
    breach of any provision of this Agreement after written notice and a thirty
    (30) day period to cure.

                                   1
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b)  The Company may terminate this Agreement 90 days following the Consultant's
    Total Disability. For purposes of this Agreement, "Total Disability" will
    mean such disability that prevents the Consultant from performing his duties
    under Section 2 of this Agreement for a continuous period of 90 days.

c)  This Agreement will automatically terminate upon the death of the
    Consultant.

d)  In the event of termination of this Agreement, the obligations of the
    Company and the Consultant under Sections 5(b), 6, 7, 9, and 10 of this
    Agreement shall survive and continue.

5.  Compensation.
    ------------

a)  Annual Consulting Fee.  The Company will pay consulting fees to the
    ----------------------
    Consulting Firm at the rate of $250,000 per year, payable monthly in
    advance.

b)  Expenses.  The Company will reimburse the Consulting Firm for reasonable
    ---------
    expenses that the Consulting Firm incurs while performing duties under this
    Agreement, provided that such expenses are incurred and properly accounted
    for in accordance with the Company's policies.

c)  Office and Support.   The Company will provide the Consultant with an office
    -------------------
    and normal support, consistent with current practice.

6.  Confidential Information
    ------------------------

a)  Confidential Information means information that is not generally known and
    ------------------------
    that is proprietary to the Company or that the Company is obligated to treat
    as proprietary. This information includes, without limitation:

i.  trade secret or other proprietary information about the Company and its
    products; and

ii. proprietary information concerning any of the Company's past, current, or
    future products, and information concerning the Company's research,
    development, engineering, purchasing, manufacturing, accounting, marketing,
    selling or leasing.

    The term "Confidential Information" does not include information, which
    becomes available to the public other than as a result of a disclosure by
    the Consultant or was within the Consultant's possession prior to its being
    furnished to the Consultant by or on behalf of the Company.

b)  Nondisclosure.  The Consultant will not disclose Confidential Information to
    --------------
    any person not authorized by the Company to receive it.

c)  Use.   The Consultant will not make any use of Confidential Information,
    ----
    other than for the benefit of, and on behalf of the Company.

                                       2
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d)  Return of Information.  When the Consultant's engagement with the Company
    ---------------------
    ends, he will promptly return to the Company all records and other items in
    his possession that disclose or describe Confidential Information.

7.  Competitive Activities.  The Consultant agrees that during the term of this
    ----------------------
    Agreement and for a period of two (2) years after termination of this
    Agreement, regardless of the reason for such termination, he will not do any
    of the following:

a)  directly or indirectly compete with the Company's business, as the Company
    has conducted it during the Consultant's engagement, within any state in the
    United States or any country in which the Company directly or indirectly
    markets its products or services;

b)  solicit or encourage any Company customer or potential customer to cease to
    do business with or to not do business with the Company; or

c)  employ or attempt to employ any of the Company's employees on behalf of any
    other entity.

8.  No Adequate Remedy.  The Consultant understands that if he fails to fulfill
    ------------------
    his obligations under this Agreement, the damages to the Company would be
    very difficult to determine. Therefore, in addition to any other rights or
    remedies available to the Company at law, in equity or by statute, the
    Consultant hereby consents to the specific enforcement by the Company of
    Sections 6 and 7 of this Agreement through an injunction or restraining
    order issued by an appropriate court.

9.  Indemnification & Directors and Officers Liability Insurance.
    ------------------------------------------------------------

a)  The Consultant and the Consulting Firm will at all times be entitled to
    indemnification from the Company in accordance with Article V of the Amended
    and Restated Bylaws of the Company as in effect on the date hereof. The
    Consultant and the Consulting Firm will be deemed to be an "Indemnified
    Person" as defined therein for all purposes, and the Consultant's and the
    Consulting Firm's rights thereunder will not be adversely affected by any
    subsequent amendment thereof.

b)  The Company will maintain in full force and effect one or more policies of
    directors and officers liability insurance providing for such coverage (in
    amounts not less than present amounts) as may be determined from time to
    time by the Board.

10. Miscellaneous.
    -------------

a)  Successors and Assigns.  Either party without the other party's prior
    -----------------------
    written consent may not assign this Agreement.

b)  Modification.  This Agreement may be modified or amended only in writing
    -------------
    signed by each of the parties hereto.

c)  Governing Law.  The laws of the State of Michigan will govern the validity,
    --------------
    construction, and performance of this Agreement, without regard to the
    conflicts of law provisions of any jurisdictions.

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d)  Arbitration.  All disputes under this Agreement shall be submitted to
    ------------
    binding arbitration by the AAA in Southfield, Michigan, and shall be
    governed by the AAA commercial arbitration rules. Judgement may be entered
    in a court of competent jurisdiction in Michigan, enforcing any arbitration
    award.

e)  Notices.  All notices to the Consultant required by this Agreement will be
    --------
    either hand delivered or sent by fax to a location where the Consultant is
    known to reside.

ELTRAX SYSTEMS, INC.

/s/ Nicholas J. Pyett
------------------------------
By:   Nicholas J. Pyett,
      Chief Financial Officer

Montana Corporation

/s/ William P. O'Reilly
------------------------------
By:  William P. O'Reilly
     President

CONSULTANT

/s/ William P. O'Reilly
------------------------------
William P. O'Reilly

                                       4<PAGE>

                                                                   EXHIBIT 10.19

                          LEWIS CONSULTING AGREEMENT

     THIS AGREEMENT is effective as of April 1, 1999, among Eltrax Systems, Inc.
(the "Company"), CRL Enterprises, Inc. (the "Consulting Firm"), and Clunet R.
Lewis (the "Consultant"), with reference to the following facts:

          A.  The Consultant serves as a member of the Board of Directors of the
          Company (the "Board");

          B.  The Consultant is an employee of the Consulting Firm; and

          C.  The Company wishes to engage the Consultant to perform certain
          consulting services in order to benefit from the Consultant's
          management experience and abilities, and the Consultant wishes to
          accept such engagement, all upon the terms and conditions set forth in
          this Agreement.

The Company, the Consultant Firm, and the Consultant agree as follows:

1.  Engagement. The Company hereby engages the Consultant to perform various
    ----------
management duties as may be agreed to from time to time between the Board and
the Consultant.  Such duties will include participation in senior management and
assisting the Company in identifying and pursuing possible acquisitions, joint
ventures, marketing agreements and other growth opportunities.  The Consultant
agrees to accept such engagement.

2.  Duties.
    ------

          a) The Consultant agrees to consult with and to provide services to
          the Company that are reasonable be requested by the Board, consistent
          with the Consultant's expertise and experience and consistent with the
          Consultant's current duties. Initially, the Consultant shall serve as
          the Secretary, General Counsel, and a member of the Board of the
          Company.

          b) This Agreement and the Consultant's engagement shall not limit the
          Consultant from providing services to any other organization or from
          engaging in any other activities, as long as such services or
          activities are not in conflict with the interests of the Company.

3.  Term.  The term of this Agreement will commence on April 1, 1999, and will
    ----
continue for a period of three (3) years, unless earlier terminated in
accordance with Section 4 below.  The term of this Agreement will automatically
renew for additional two-year terms unless written notice of election to not
renew is given by either party to the other at least one year before the end of
the term.

4.  Termination.
    -----------

          a) The Company may terminate this Agreement for cause upon written
          notice to the Consultant specifying the cause for termination. For
          purposes of this Agreement, "cause" will mean (i) dishonesty, fraud,
          gross misrepresentation, embezzlement or material and deliberate
          injury or attempted injury, in each case related to the Company or its
          business, (ii) any unlawful or criminal activity of a serious nature
          affecting the Company, (iii) any willful breach of duty, habitual
          neglect of duty or unreasonable job performance after written notice
          and a thirty (30) day period to cure, or (iv) a material breach of any
          provision of this Agreement after written notice and a thirty (30) day
          period to cure.

                                       1
<PAGE>

          b) The Company may terminate this Agreement 90 days following the
          Consultant's Total Disability. For purposes of this Agreement, "Total
          Disability" will mean such disability that prevents the Consultant
          from performing his duties under Section 2 of this Agreement for a
          continuous period of 90 days.

          c) This Agreement will automatically terminate upon the death of the
          Consultant.

          d) In the event of termination of this Agreement, the obligations of
          the Company and the Consultant under Sections 5(b), 6, 7, 9, and 10 of
          this Agreement shall survive and continue.

5.  Compensation.
    ------------

          a)  Annual Consulting Fee.  The Company will pay consulting fees to
              ---------------------
          the Consulting Firm at the rate of $240,000 per year, payable monthly
          in advance.

          b)  Expenses.  The Company will reimburse the Consulting Firm for
              --------
          reasonable expenses that the Consulting Firm incurs while performing
          duties under this Agreement, provided that such expenses are incurred
          and properly accounted for in accordance with the Company's policies.

          c)  Office and Support.   The Company will provide the Consultant
              ------------------
          with an office and normal support, consistent with current practice.

6.  Confidential Information
    ------------------------

          a)  Confidential Information means information that is not generally
              ------------------------
          known and that is proprietary to the Company or that the Company is
          obligated to treat as proprietary. This information includes, without
          limitation:

          i. trade secret or other proprietary information about the Company and
          its products; and

          ii. proprietary information concerning any of the Company's past,
          current, or future products, and information concerning the Company's
          research, development, engineering, purchasing, manufacturing,
          accounting, marketing, selling or leasing.

          The term "Confidential Information" does not include information,
          which becomes available to the public other than as a result of a
          disclosure by the Consultant or was within the Consultant's possession
          prior to its being furnished to the Consultant by or on behalf of the
          Company.

          b)  Nondisclosure. The Consultant will not disclose Confidential
              -------------
          Information to any person not authorized by the Company to receive it.

          c)  Use. The Consultant will not make any use of Confidential
              ---
          Information, other than for the benefit of, and on behalf of the
          Company.

                                       2
<PAGE>

          d)  Return of Information. When the Consultant's engagement with the
              ---------------------
          Company ends, he will promptly return to the Company all records and
          other items in his possession that disclose or describe Confidential
          Information.

7.  Competitive Activities.  The Consultant agrees that during the term of this
    ----------------------
Agreement and for a period of two (2) years after termination of this Agreement,
regardless of the reason for such termination, he will not do any of the
following:

          a) directly or indirectly compete with the Company's business, as the
          Company has conducted it during the Consultant's engagement, within
          any state in the United States or any country in which the Company
          directly or indirectly markets its products or services;

          b) solicit or encourage any Company customer or potential customer to
          cease to do business with or to not do business with the Company; or

          c) employ or attempt to employ any of the Company's employees on
          behalf of any other entity.

8.  No Adequate Remedy.  The Consultant understands that if he fails to fulfill
    ------------------
his obligations under this Agreement, the damages to the Company would be very
difficult to determine.  Therefore, in addition to any other rights or remedies
available to the Company at law, in equity or by statute, the Consultant hereby
consents to the specific enforcement by the Company of Sections 6 and 7 of this
Agreement through an injunction or restraining order issued by an appropriate
court.

9.  Indemnification & Directors and Officers Liability Insurance.
    ------------------------------------------------------------

          a)  The Consultant and the Consulting Firm will at all times be
          entitled to indemnification from the Company in accordance with
          Article V of the Amended and Restated Bylaws of the Company as in
          effect on the date hereof. The Consultant and the Consulting Firm will
          be deemed to be an "Indemnified Person" as defined therein for all
          purposes, and the Consultant's and the Consulting Firm's rights
          thereunder will not be adversely affected by any subsequent amendment
          thereof.

          b)  The Company will maintain in full force and effect one or more
          policies of directors and officers liability insurance providing for
          such coverage (in amounts not less than present amounts) as may be
          determined from time to time by the Board.

10.  Miscellaneous.
     -------------

          a)  Successors and Assigns.  Either party without the other party's
              ----------------------
          prior written consent may not assign this Agreement.

          b)  Modification.  This Agreement may be modified or amended only in
              ------------
          writing signed by each of the parties hereto.

          c)  Governing Law.  The laws of the State of Michigan will govern the
              -------------
          validity, construction, and performance of this Agreement, without
          regard to the conflicts of law provisions of any jurisdictions.

                                       3
<PAGE>

          d)  Arbitration.  All disputes under this Agreement shall be
              -----------
          submitted to binding arbitration by the AAA in Southfield, Michigan,
          and shall be governed by the AAA commercial arbitration rules.
          Judgement may be entered in a court of competent jurisdiction in
          Michigan, enforcing any arbitration award.

          e)  Notices.  All notices to the Consultant required by this
              -------
          Agreement will be either hand delivered or sent by fax to a location
          where the Consultant is known to reside.

ELTRAX SYSTEMS, INC.

/s/ Nicholas J. Pyett
-------------------------------
By:   Nicholas J. Pyett,
      Chief Financial Officer

CRL Enterprises, Inc.

/s/ Clunet R. Lewis
-------------------------------
By:  Clunet R. Lewis,
     President

CONSULTANT

/s/ Clunet R. Lewis
-------------------------------
Clunet R. Lewis

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