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10 Pair RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White（Normally Closed）
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About 10 Pair RC-33 NC Recessed Wired Security Window
1.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 ). When make order,pls check carefully! 2.These are the door contact sensors that are in use with any and all commercial or residential card access systems as well as all burglar alarm system. 3.Work as an anti-theft alarm, ideal for metal door and window. ABS Normally Closed Door Contact Switch 0.5A Maximum Switch Current Will make Sense Door Closer at Roughly 10mm This Contact Works with Any Access Control or Burglar Alarm System Available 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 ). Note: Door magnetic induction can only provide a switch signal, which can not directly load the power, nor directly connect the lamp!
