Features:
①N.C. Electromagnetic Door Contact Sensor.
②Work as an anti-theft alarm, ideal for metal door and window.
③The reed switch is an electrical switch operated by electric power, with built in iron core and coil, without magnetism when powered off.
④The size is between 5/8" & 3/4". The hole will have to be enlarged if drilling with a 5/8" bit.
⑤Normally Closed: when the switch is powered on, the iron core gets magnetism under the action of the coil and current, and the switch will be in contact.; when the powered off, the iron core lose magnetism, the switches separate, the circuit is open (Power OFF).
Specification:
Name: recessed wired door sensor
Contacts Status : NC
Color : White
Housing Material : ABS
Maximum Current : 0.5A
Voltage : 100V
Rated Power : 10W
Operating Distance : ~12mm
Cable Length : 254mm / 10"
Contact Dimension: 17 x 11mm / 0.67" x 0.43"(H*D)
Installation: Wired / Recessed / Flush
Please Notice: The product itself does not have magnetism, and magnetism is only generated by the action of current and coil after being energized.