Wireless Sensor Window Door Entry Burglar Alarm Bell @ 109

http://shopping.rediff.com/product/wireless-sensor-window-door-burglar-alarm-bell/11745322



Apply code SHOP100

High Quality Easily mounted by adhesive tape to window or door ( included )​

Magnetic sensor switch detects entry protection your home or office whether you are in or out​

As soon as doors or windows are opened, the magnetic sensor will trigger the alarm to go off at 90 DB, which is super loud and can be heard throughout house, office and by your neighbours​

Use the double-side adhesive tape to fix the main unit at the side of the door/window. Attach the bar magnet to door frame/window frame with the arrow aligning with the reference line of the main unit​

Test the setup by switching the system's switch to "on" position of the main unit and see whether the alarm can be triggered by opening the door window​

Each alarm has a convenient On/Off switch, so you can set the alarm to Off when you do not want to use it​

Each alarm is powered by 3 pieces 1.5V LR55 Button cells(included)​

 

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