10PCS Waterproof Wired Magnetic Door Contact Reed Switch Door Sensor Switch NO NC COM 3 Cable

The door magnet has three wires and supports NO and NC outputs

Actuation, Distance:, 16m±5mm
Maximum voltage: 100VDC
Maximum current: 300mA
Life expectancy: 1000000
Output: NC/NO

The, reed, switch, is, an, electrical, switch, operated, by, an,, applied, magnetic, field.
Designed, for, use, with, alarm, systems., Great, for, use, in, family, and, factory, window, door., etc.
Screw, Mounted, for, easily, install