Wireless Window Door Entry Burglar Security Alarm System Magnetic Sensor

Featuers:

 1. Easily mounted by adhesive tape to window or door.
 2. Magnetic sensor switch detectors entry protecting your home or office whether you are in or out.
 3. Warning door/window sticker is supplied free in package.
 4. Operated by 3pcs 1.5V LR44 button cell(included)
 5. 105db instant alarm
 4. Low power standby consumption

Operation & Installation：

 1. Use the doubleside adhesive tape to fix the main unit at the side of the door/window.Attsch the bar magnet to door frame/window frame with the arrow aligning with the refernce line of the main unit. 

 2. Test the setup by switching the system's switch to 'ON' possitino of the main unit and check whether the alarm can be triggered by opening the door or window.

Package Content:

1 x Wireless door/window detector