SALE 20 Sets Magnetic Window Door Sensor Contacts - Surface-Mounted Reed Switch Alarm
$37.99$39.99
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SALE Reed Switch Door Alarm Sensors 20 Count Surface Mounted with Easy Installation
$36.67$38.60
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About this item
Reed Switch Door Alarm Sensors - 20 Count. Enhance your security with our Reed Switch Door Alarm Sensors. Why Choose Our Reed Switch Door Alarm Sensors?. These sensors operate on a Normally Closed (NC) principle; when the magnet is near the switch, the signal is conductive.
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