20 Sets Wired Magnetic Door Window Alarm Contact Sensor - Security Reed Switch
$49.99
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SALE 20 Sets Wired Magnetic Door Window Alarm Contact Sensors - Security Reed Switche
$41.79$43.99
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About this item
Designed for ease of use and versatility, these sensors are an essential addition to any security system.Key Features Operation Principle: Features a normally closed (NC) design; when the magnet is near the switch, the signal is conductive.
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