NO&NC 3 Wires Magnetic Garage Door Contacts Heavy Duty Alarm Switch Sensor With Adjustable Bracket For Roller Shutter. Garage door contacts is widely used for home alarm systems, to detect the garage door/ roller shutter states of open or close. Operation gap: over 40mm
Mounting type: Roller shutter door
Contact type: NO&NC Max. voltage: 28V DC
Max. current: 0.2A
Max. load: 3W Material: Matel zinc alloy
