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20 Sets Magnetic Window Door Sensor Contacts - Surface-Mounted Reed Switch Alarm

20 Sets Magnetic Window Door Sensor Contacts - Surface-Mounted Reed Switch Alarm

$39.99
  • Condition: New
  • Ships from: Perrysburg, US
  • Seller: bowesales (98.9% positive)
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About this item

This sensor operates on a normally closed (NC) principle. When the magnet is in close proximity to the switch, the signal remains conductive. Conversely, when the magnet moves away, the signal disconnects.

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