Micro-Switch and Magnetic Reed
Radio Sensor, Pressure Mat and Taut Wiring
Acoustic, Vibration and Inertia Detectors
The first line of defence against intrusion includes physical measures that resist unwanted entry to the grounds and structure of a building. The second line of defence is an alarm system.
Some basic physical measures:
Spring or night latch – the typical front door latch that is in place when the door is closed. Very vulnerable due ...
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