|Function: Magnetic sensor switch detects entry protecting your home or office whether you are in or out.
Once your door/window by uninvited persons, it alarms
|Features: Easily mounted by adhesive tape to window or door.|
|Power supply: Operated by 3pcs of 1.5VLR44 button cell(included)|
|1.use the double-side adhesive tape to fix the main unit at the side of the door/window.|
|Attacch the bar magnet to door frame/window frame with the arrow aligning with the reference line of the main unit.|
|2. Test the setup bt switching the system`s switch to “ON” position of the main unit
and whethcher the alarm be triggered by opening the door/window.