Item Tag: 23g
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Door Window NC Contact Security Safety Alarm Magnetic Sensor Reed Switch
Descriptions: Switch Type: NC(normal closed type), the circuit is closed normally, and, that if a magnet not near it, the circuit open. The Reed Switch is an electrical switch operated by an applied magnetic field. It was invented at Bell Telephone Laboratories in 1936 by W. B. . It consists of a pair of contacts…
