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Door Window NO/NC Recessed Security Contact Sensor Alarm Magnetic Reed Switches SALE

Door Window NO/NC Recessed Security Contact Sensor Alarm Magnetic Reed Switches

$15.00$15.79
  • Condition: New
  • Ships from: US
  • Seller: toolmaster88 (99.7% positive)
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About this item

Description:NO NC type designed for use with alarm systems. Great for use in family and factory window, door. etc.Switch Type: NC means Normally Closed:When the magnet together, the circuit is conductive( light on ); when the magnet separate, the circuit is not conductive ( light off ). Switch Type: NO(normal open type), NO means Normally Open:when the magnet separate, the circuit is not conductive( light on );When the magnet together, the circuit is conductive ( light off ).

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