Magnetic Roller Shutter Sensor accessory for our GSM Home Alarm Systems.
The door/window magnetic contact includes two parts. The sensor will
send the wireless signal to main unit immediately to trigger alarm when
the two parts depart more than 15-30mm.
This product works on our:
Microcomputer control,self-check open/closed status of doors and windows;
Specifications:Alarm Distance: ≤2cm
Emitting Distance: 100M