Aluminium Contact Type F 8K2 SW 3K9 TAMP...
£14.35
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Door Contacts and Shock Sensors
Door Contacts and Shock Sensors
Door contacts have two parts, 1 is attached to the door and the other to the frame. When the door opens, the circuit breaks and the device sends a signal to the panel. Shock sensors monitor windows for vibration and glass breaks detect the sound of breaking glass.