Heavy Duty Metallic magnetic contact

Description:
This set of magnetic sensor detector includes the wired part and the mating part, which is great for installed on doors of house, garage, warehouse, enterprise and shop etc. Keep your home safe with this set of door security accessories.

Specifications:
Rated Voltage: 12V
Rated Current: 120mA
Sensing Distance: 50~70mm / 1.9~2.7in

Note:
Can not used alone. Should work with the alarm system main unit for alarming.