【Material】The magnetic switch alarm is with zinc alloy housing for better rust resistance, durable and high strength.
【Normally Closed (NC)】Normally closed type with 2 wires. When the magnet together, the circuit is conductive( light on ); the circuit is not conductive ( light off ) if the magnet separates.
【Application】This magnetic contact switch is usually used for metal door/windows include rolling Door. The door contact can be used with an access control or anti-theft alarm system.
【Note】The Magnetic Door Switch must be installed as per the sensing distance. It can only provide a switch signal to the transmitter. It can't directly load the power, nor directly connect the lamp.
