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5 Pack Surface Mounted NC Magnetic Door Switch Sensor for Alarm

5 Pack Surface Mounted NC Magnetic Door Switch Sensor for Alarm

$15.23
  • Condition: New
  • Ships from: Avenal, US
  • Seller: vga-7868 (97.3% positive)
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About this item

Magnetic is widely used for alarm system(panel) to detect state of door. 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.

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