5pcs MC-51 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White Threaded on Both Ends Connectors Thread Size: G3/4 x G3/4

Thread Size: G3/4 x G3/4

83inch(L*W*H)

please press it several times and then use it again

Net Weight:371g

5pcs MC-51 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White Threaded on Both Ends Connectors Thread Size: G3/4 x G3/4Description: 1. Screw Mounted for easily install, PVC. 2. The reed switch is an electrical switch operated by an applied magnetic field. 3. 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 ). 4. Work as an anti theft alarm, perfect for wood door and window. Specification: Product Name: Magnetic Door Switch Model: MC 51 Contact