Keep off your back alarm
Key chain alarm and light
Key chain holder with clock and alarm
Key control system using separate ID and location detection...
Key control system using separated ID and location detection...
Key control tag
Key controlled, position sensitive, portable alarm
Key for vehicle and drunken driving preventing device
Key lock-in prevention system
Key security device
Key sensing system
Key-ring-mountable alarm device
Keypad for building automation
Keypad for building automation
Kidnap alarm with acceleration sensor
Kit containing components for an alarm screen assembly
Knob assembly with a lock and a status indicator