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5 Pack NC Magnetic Switch Contacts Door Sensor for Home Alarm Security System

5 Pack NC Magnetic Switch Contacts Door Sensor for Home Alarm Security System

$15.77
  • Condition: New
  • Ships from: Denver, US
  • Seller: iamq97 (80% positive)
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About this item

It consist of a reed switch part and a magnet part. When door closed, reed switch is effected by magnet and turn ON; when door open, reed switch is effected by magnet and turn OFF, trigger alarm. Unit Count 5.0 Count.

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