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10pcs 31B For Security Magnetic Reed Switch NC NO Combined Door Contact Sensor SALE

10pcs 31B For Security Magnetic Reed Switch NC NO Combined Door Contact Sensor

$31.40$36.09
  • Condition: New
  • Ships from: CN
  • Seller: coolmall88 (98.3% positive)
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About this item

Model: 31B. Leave, the switch will open. Leave, the switch will close. 10x Magnet. and any opening device such as a drawer or cupboard for example. fit PIR sensors, for example where there are pets or animals.

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