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Data sheets 332
System composition 1
6 other sections not shown
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Advantages alarm system allow anti-tamper application attack battery beam bolt breakglass British Telecom building buried Cable Sensor camera Capacitive caused CCTV central station Check circuit client control panel coverage cylinder detection detector device dialler Disadvantages door Doppler shift double reed electrical electromagnetic interference energy ensure entry equipment facilities false alarms Fence mounted Figure fixed frequency geophone glass hence high security illumination inatellation installation intruder alarm intruder detection lamps lock loop luminaires magnetic manufacturers material microwave microwave sensor monitor mortice multiplexing normal operation passive infrared sensors perimeter piezoelectric sensor police position premises pressure processor protection range reduce reed switch reliable risk security company security lighting security systems selection sensitivity single space standard structure supply surface tape transceiver transmission transmitted Typical dimensions ultrasonic unit usually vandalism vibration voltage wall window wiring zone