Dairzitv MC-38 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch ...
$15.70
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Dairzitv MC-38 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch ...
$14.21
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About this item
Nc: when the magnet is near, the circuit is on;. Long wire lead that can side mounted. Work as an anti-theft alarm, ideal for wood door and window. When the magnet moves away and the circuit is Off.
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