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

Features:

100% Brand New and High Quality!

Easily mounted by adhesive tape to window or door..

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

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 refernce 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 pcs 1.5V LR44 Button cells.(batteries included in package)

Size: 2.5"L x 1.25"W x 0.75"H

Color: white

Quantity: 1

Package Content:

1X Wireless Door&Window Alarm