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MC-38B Door Window Sensor N/C N/O Switch Magnetic Alarm Normally Opened/Closed

MC-38B Door Window Sensor N/C N/O Switch Magnetic Alarm Normally Opened/Closed

$1.99
  • Condition: New
  • Ships from: CN
  • Seller: czb6721960 (99.6% positive)
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About this item

Raspberry Pi. Normally open: When the magnet and reed switch are together, they are in the off state (NO). Normally closed type: When the magnet and reed switch are together, they are in a conductive state (NC).

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