Motion sensor unit
Motor vehicle occupancy signaling system
Movable barrier operations method and apparatus
Movement detector
Multi-apartment building combination communication and security
Multi-controller security network
Multi-dimensional electronic identification of articles
Multi-dimensional vector-based occupancy sensor and method...
Multi-function control system
Multi-function electric bell
Multi-input electrical monitor
Multi-input electrical monitor
Multi-layer method of accommodating code collisions from...
Multi-mode intrusion alarm system
Multi-nodal communication network with coordinated responsibilit
Multi-operation mode type of security-ensuring apparatus
Multi-satellite intrusion alarm control system
Multi-sensor detector
Multi-sensor fire detector with reduced false alarm performance
Multi-sensor security/fire alarm system with mated master contro