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                                                                  EXHIBIT 10.6.1

                            FIRST AMENDMENT TO LEASE
                                November 21, 2000

                                   1. PARTIES

         The parties to this First Amendment to Lease ("Amendment") are
WOHL/MIRA COSTA, LLC, A CALIFORNIA LIMITED LIABILITY CORPORATION ("Landlord")
and ICX ELECTRONICS.COM ("Tenant").

                                  2. RECITALS

         2.1 On or about October 11, 2000, Lessor and Lessee entered into that
certain lease ("Lease"), under the terms of which Lessor agreed to lease to
Lessee, for a period of three (3) years, the Premises located at 3551 Camino
Mira Costa, Suite S, San Clemente, CA. Suite S shall be herein referred to as
the "Existing Premises."

         2.2 Lessor and Lessee desire to modify the Lease to add certain
additional space to the Premises and provide for modification of the Tenant's
rental obligations and the term of the Lease.

                                  3. AMENDMENT

         3.1 Premises. From and after the Effective Date as set forth in Section
5 below, the Premises as defined in Section 1.2 of the Lease shall be amended to
include Suite G as shown on the attached Exhibit "A" which has an approximate
floor area of 1,117 rentable square feet ("Additional Space"). Accordingly, the
total square footage of the Premises shall be amended to 3,018 rentable square
feet.

         3.2 Term. The Lease term of the additional space shall be two (2)
years, ten (10) months and fourteen (14) days commencing January 1, 2001.

         3.3 Minimum Rent. From and after the Effective Date, the Minimum Rent
as set forth in Section 1.5 of the Lease shall be amended as follows:

             January 1, 2001 through November 14, 2001       $4,527.00 per month
             November 15, 2001 through November 14, 2002     $4,677.90 per month
             November 15, 2002 through November 14, 2003     $4,828.80 per month

         3.4 Tenant's Possession of the Premises. Lessor shall tender advance
access to the Premises at least three (3) weeks prior to occupancy to install
wiring for telephone, computer network, electrical, etc. the cost of which shall
be borne by Tenant.

         3.5 Janitorial. Notwithstanding anything to the contrary contained in
the Lease, Lessee shall be solely responsible for the janitorial and utility
services within Lessee's suite.

         3.6 Condition of Premises. Lessee accepts the Premises is "AS-IS"
condition except as set forth in 3.7 below and that Lessor warrants that the
HVAC, plumbing and electrical servicing the Premises are all in good working
condition on the Commencement Date.

         3.7 Tenant Improvements. Lessor, at Lessor's sole cost and expense,
shall carpet the Premises with building standard carpet, color to be selected by
Lessee.

Any additional tenant improvements by the Lessee in the Premises shall be at
Lessee's sole cost and expense. Lessee agrees to submit any improvement plans
for the Premises to Lessor for prior approval, which will not be unreasonably
with held. Lessee agrees to name the Lessor and its property management company,
Wohl Investment Company, as additionally insured, and to supply Lessor with
copies of working drawings, contractor insurance & licenses, and any approved
City Permits for any tenant improvement work performed in the Premises.

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         3.8 Security Deposit. Lessor is in possession of Lessee's security
deposit in the amount of $3,041.60 from the Lease dated October 11, 2000 between
Lessor and Lessee. Lessee shall deposit an additional $1,787.20 with Lessor,
making the total security deposit $4,828.80.

         3.9 Lessor's Right to Increase Security Deposit. If Lessee is in
default under this Lease more than three (3) times within any twelve-month
period, irrespective of whether or not such default is cured, then, without
limiting Lessor's other rights and remedies provided for in this Lease or at law
or in equity, the Security Deposit as set forth in Section 1.7(c) of the Lease
shall be increased by an amount equal to the greater of:

             (a) Three (3) times the original Security Deposit

             (b) Three (3) month's Base Rent, which shall be paid by Lessee to
                 Lessor forthwith on demand.

                        4. EXTENT OF AMENDMENT; CONFLICT

         Except as expressly modified by this Amendment, the Lease and all of
the terms and provisions thereof shall remain in full force and effect through
the remainder of its term. To the extent of any conflict between the terms of
this Amendment and the terms of the Lease which arise following the Effective
Date, the terms of this Amendment shall govern and control.

                          5. EXECUTION; EFFECTIVE DATE

The modifications and terms and conditions contained herein shall be effective
January 1, 2001.

IN WITNESS WHEREOF, Lessor and Lessee have executed this Amendment to be
effective as of the Effective Date written above.

LESSOR: WOHL/ANAHEIM, LLC, a California limited liability company

By: /s/ PETER DESFORGES                            Date: December 11, 2000
    -------------------------------------
        Peter Desforges, Manager

LESSEE:  ICX Electronics.com

By: /s/ GARY E. LOTZER                             Date: November 28, 2000
    -------------------------------------
        Gary E. Lotzer,
        President/CEO and Chairman

By: /s/ GARY E. LOTZER                             Date: November 28, 2000
    -------------------------------------
        Gary E. Lotzer, An Individual

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                        STANDARD OFFICE LEASE FLOOR PLAN

                                 Mira Costa Plaza
                                 3551 Camino Mira Costa
                                 San Clemente, CA

                                 Suite G
                                 Approximately 1,117
                                 rentable square feet

                                    EXHIBIT A<PAGE>   1

                                                                    EXHIBIT 10.7

                     SUMICO ELECTRICAL ENGINEERING PTE. LTD.

Our Ref: SE/2000/L17/RA                                       DATE: 15 June 2000

M/S ICX ELECTRONICS ASIA PTE LTD.
C/O NO. 8 CHANGI NORTH STREET 1
2nd Floor
Singapore 498829

ATTN: MR. PATRICK NGO

LETTER OF OFFER - 2ND FLOOR OFFICE SPACE AT NO. 8 CHANGI NORTH STREET 1,
SINGAPORE 498829

We are pleased to confirm your intention to lease the above-mentioned premises
on the following terms:

1.  THE PREMISES

    The area on the 2nd floor contain an area of approximately 3833 sq ft.,
    which is calculated from the floor plan and us, advised by the Architect.
    However, you may wish to engage a surveyor at your own cost if a final
    resurvey is necessary.

2.  MONTHLY RENT AND MAINTENANCE FEES

    Monthly rent and maintenance fees shall be fixed at Singapore Dollars Six
    Thousand Only (S$6,000.00), exclusive of G.S.T.

3.  LEASE PERIOD

    The lease period is Two (2) years with an option to extend 2 years SUBJECT
    always to JTC's written approval and for such period as JTC shall approve.

4.  LEASE COMMENCEMENT DATE

    This lease shall commence on 1st August 2000.

5.  GOODS & SERVICES TAX

    The Goods and Services Tax in respect of this tenancy is payable by the
    Tenant.

6.  ADVANCE RENTAL

    An advance rental & maintenance fee equivalent to S$6,000.00 shall be paid
    to us upon the execution of the Tenancy Agreement.

7.  EXECUTION OF TENANCY AGREEMENT

    You shall within Seven (7) days upon receipt of the Tenancy Agreement
    execute and return same to us together with One (1) month's rental deposit.

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8.  UTILITIES CHARGE

    You shall bear your own electricity charges to be consumed within the
    premises and separately assessed to be paid to us.

9.  REFUSE DISPOSAL

    You shall bear your own refuse disposal (bulk) consumed within the premises
    and separately assessed to be paid to us. However, we shall provide daily
    refuse disposal for non-bulk rubbish.

10. RENOVATION

    You shall at your own costs and expenses carry out renovation works to apply
    and obtain all the relevant governmental authorities' approvals before the
    commencement of the work relating thereto. You shall further covenants and
    agrees to only engage our approved panel of consultants for all major
    renovation works to the premises.

11. JTC'S APPROVAL

    This letter of Offer is subject to the approval of Jurong Town Corporation
    (JTC).

12. HOLDING DEPOSIT

    A holding deposit equivalent to one (1) month's rental deposit without GST
    shall be paid to the Landlord upon acceptance of this Letter of Offer. Upon
    signing of the Tenancy Agreement, this holding deposit will be credited
    towards the three months deposit.

13. ADMINISTRATIVE / LEGAL CHARGES

    All stamps duty in connection with the preparation of the Tenancy Agreement
    in duplicate shall be borne by the Tenant.

14. INSURANCE

    You shall arrange for your own insurance coverage's.

15. SOLICITORS COSTS

    The landlord's solicitors cost in connection with the preparation of the
    Tenancy Agreement shall be paid by you (JTC's compliance).

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16. CONFIDENTIALITY

    No party shall divulge or communicate to any person (unless required by law
    or by any regulatory authority) any information which it may receive or
    obtain as a result of entering into this agreement and each party shall use
    its reasonable endeavors to prevent its agents from so doing provided that
    this restriction shall not apply to information which may properly come into
    the public domain through no fault of the relevant party. The obligations
    set out in this Clause shall survive the termination of this letter of
    offer.

17. COMPLIANCE WITH JTC'S TERMS AND CONDITIONS IN THE LETTER OF APPROVAL
    TO THE SUBLETTING

    Both parties shall comply with all the terms and conditions as may be
    imposed by JTC in its letter of approval.

Yours faithfully,

--------------------------------------
SUMICO ELECTRICAL ENGINEERING PTE LTD.

Confirmed & Accepted by Tenant:

ICX ELECTRONICS ASIA PTE LTD.

--------------------------------------
(Signature and Tenant's Stamp)
Authorized Signatures
Date / Time

Confirmed & Accepted by Landlord:

--------------------------------------
(Signature and Co.'s Stamp)
Date / Time

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