SALE Wired Surface Mounted NC Magnetic Door Window Contact Sensor Alarm Switch 5 Pack
$9.45$9.78
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Wired Surface Mounted NC Magnetic Door Window Contact Sensor Alarm Switch 5 Pack
$9.65
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About this item
If the magnet is closed to this switch, the signal is conductive, otherwise, if the magnet is far away from this switch, the signal is disconnected.
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