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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
Fit Mounting Screw Dia: 3
Hex Size: 15 x 29mm / 0
Connection Diameter: 10mm to 12mm/0
1* JR male
Note: Make sure the device has an infrared interface and interface size
5pcs Recessed NC Security Alarm Door Window Contact Sensor Magnetic Reed Switch Lamp Guards Fit Mounting Screw Dia: 3NC 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! The reed switch is an electrical switch operated by an applied magnetic field. Designed for use with alarm systems. Great for use in family and factory window, door. etc.
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