$7 Window Door Contact Sensor, Durable Magnetic Reed Switch, Wired Tools Home Improvement Building Supplies Building Materials Gorgeous Window Door Contact Sensor Durable Magnetic Reed Switch Wired Gorgeous Window Door Contact Sensor Durable Magnetic Reed Switch Wired $7 Window Door Contact Sensor, Durable Magnetic Reed Switch, Wired Tools Home Improvement Building Supplies Building Materials www.hill-bros.co.uk,Durable,Wired,Door,Window,Sensor,,Reed,Magnetic,Contact,Tools Home Improvement , Building Supplies , Building Materials,/lemurian124241.html,Switch,,$7 www.hill-bros.co.uk,Durable,Wired,Door,Window,Sensor,,Reed,Magnetic,Contact,Tools Home Improvement , Building Supplies , Building Materials,/lemurian124241.html,Switch,,$7

Gorgeous Window Door Contact Sensor Durable Magnetic Reed All items free shipping Switch Wired

Window Door Contact Sensor, Durable Magnetic Reed Switch, Wired

$7

Window Door Contact Sensor, Durable Magnetic Reed Switch, Wired

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Product description

Features:
Magnets are usually close to each other, which is normal statement. Close = short circuit = create a path for the current. The magnets are close together and the switch is off. And the switch and magnet are separated, and the switch is open. No external power supply is needed, and the GND and N.C of wired or wireless alarm control panel are directly connected. Not suitable for iron doors, it will reduce the magnetism of the sensor.
Spec:
Working Distance: 15mm + 5mm
Switching Pressure: 100VDC
Load current: 300 mA
Life: 1 million times
Switch Output: NC (Normally Closed)
Package Weight: 91g/3.2oz

Package List:
10 Pair * Door Window Sensor

Window Door Contact Sensor, Durable Magnetic Reed Switch, Wired