Exhibit 21.1
                                  Ultrak, Inc.

                          SUBSIDIARIES OF ULTRAK, INC.

1.   Ultrak Operating, L.P., a Texas limited partnership

2.   Ultrak GP, Inc., a Delaware corporation

3.   Ultrak LP, Inc., a Delaware corporation

4.   Diamond Electronics, Inc., an Ohio corporation, dba Ultrak Ohio

5.   Ultrak Holdings Limited, a United Kingdom private limited liability company

6.   Ultrak France, SA (f/k/a Groupe Bisset, S.A.), a French limited liability
     company

7.   Ultrak (Asia Pacific) Pty. Ltd., an Australian proprietary company

8.   Ultrak Deutschland GmbH (f/k/a VideV GmbH), a German limited liability
     company, dba Ultrak Germany

9.   Monitor Dynamics, Inc. a California corporation, dba Ultrak California

10.  Ultrak (UK) Limited (f/k/a Intervision Express Limitd), a United Kingdom
     private limited liability company

11.  Security Procurement, B.V., a Dutch private limited liability company

12.  Ultrak (SA) (Proprietary) Limited (f/k/a Philtech Electronic Services), a
     South African corporation

13.  Ultrak Italia, SpA (f/k/a Casarotto Security, SpA), an Italian company

14.  Videosys Ltd., a United Kingdom private limited liability company

15.  Ultrak (Asia) Pte. Ltd., a Singapore company

16.  Ultrak Europe, N.V., a Belgium limited liability company

17.  Ultrak Benelux, N.V., a Belgium limited liability company

18.  Security Warranty, Inc., a Texas corporation

19.  ABM Data Systems, Inc., a Texas corporation

20.  Ultrak Polska, Sp.z. O.O (f/k/a Mach Security, Sp.z.O.O.), a Polish limited
     liability company

21.  Ultrak (Switzerland), S.A. (f/k/a MCS Ultrak, S.A.), a Swiss company





22.  Security Procurement France, S.A., a French limited liability company

23.  Security Warranty BVI, Ltd., a British Virgin Islands company