PROTECTION ONE, INC.
EXHIBIT 21.1 - SUBSIDIARIES
DECEMBER 31, 2000






                                 ENTITY                                    JURISDICTION
                                                                        
Protection One Alarm Monitoring, Inc.                                       Delaware
    Network Multifamily Security Corporation                                Delaware
    Security Monitoring Services, Inc.                                      Florida
    Protection One Canada                                                   Ontario
        Canguard, Inc.                                                      Ontario