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5 Sets Wired Magnetic Door Window Contact Sensor Reed Switch NC Alarm System

5 Sets Wired Magnetic Door Window Contact Sensor Reed Switch NC Alarm System

$14.99
  • Condition: New
  • Ships from: Statesboro, US
  • Seller: masonshop2026
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About this item

Product Composition: Composed of a reed tube switch and magnet, this device serves as an effective intrusion detector in anti-theft systems. Switch Type: Normally Closed (NC) - The circuit is conductive when the magnet is together (light on) and non-conductive when separated (light off).

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