How To Install the door/window magnetic contact

The principle of door/window contact sensor
The door/window magnetic contact includes two parts. The sensor will send the wireless signal to main unit immediately when the two parts depart more than 15-30mm.

Installation Notice:

• Fix the part of magnet onto the door frame in a position of 1.6m above the ground to prevent any children from bumping onto it
• Fix the part of emitting onto the door frame, make sure to keep the part of magnet and part of emitting in parallel, the space between the two parts shall be less than 10mm
• Upon the working light flashes frequently in red, please replace the batteries