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Which System Is Best for You?
A Variety of Alarm Components
Planning and Installing Your System
2 other sections not shown
ac power line alarm bell alarm circuit Alarm condition Alarm signal alarm will sound amplifier audio battery bell or siren burglar alarm button buzzer camera CCTV closed closed-circuit system connected contacts control box control center Control unit Corp detection system diode door or window doors and windows Doppler shift EICO electrical enter entry false alarms fire floor frequency glass Gunn diode heat sensors homeowner horn included infrared initiate an Alarm installation intruder light beam light source magnetic switch metal microphone microwave monitoring motion detectors mounted noise normally open-circuit operation owner PANNING CAMERA perimeter system photocell photoelectric system police premises protected area prowler radio receiver relay sensitivity sensor-A sensor smoke smoke detector sounding the alarm system-An alarm system tamper switch telephone tapping terminal transmitter trigger the alarm turn ultrasonic vibration voltage volume detector wall waves window foil wire wireless bugs