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4pcs RC33 NO Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White SALE

4pcs RC33 NO Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White

$17.54$20.63
  • Condition: New
  • Ships from: US
  • Seller: gadgetszone (99.5% positive)
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About this item

Description:1.NO means Normally Open: when the magnet separate, the circuit is conductive( light on );When the magnet together, the circuit is not conductive ( light off ).When make order,pls check carefully! 2.NC means Normally Closed: when the magnet separate, the circuit is not conductive( light off );When the magnet together, the circuit is conductive ( light on ).When make order,pls check carefully!3.These are the door contact sensors that are in use with any and all commercial or residential card access systems as well as all security burglar alarm system.4.Work as an anti-theft alarm, perfect for metal door and window. Specification:Model: RC-33Contact Type: NO (Normally Open)Max. Sensor Sensitivity: 10mmMax. Current: 0.5AMax. Contact Power: 10WWorking Voltage: DC100VEach Size(Approx): 16.7 x 10.7mm / 0.

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