Security Door Window Alarm, Wireless Sensor 3.4 x 1.1 x 0.6 inches, white
EASY INSTALLATION: Simple paste installation and operation, press the on/off switch to turn the power on/off, insert 2 AAA batteries (batteries are not included in the box), peel off the double-sided tape and paste it on the door, the distance between the magnet and the alarm should not exceed 0.6in.
Security Door Window Alarm, Wireless Sensor 3.4 x 1.1 x 0.6 inches, white
EASY INSTALLATION: Simple paste installation and operation, press the on/off switch to turn the power on/off, insert 2 AAA batteries (batteries are not included in the box), peel off the double-sided tape and paste it on the door, the distance between the magnet and the alarm should not exceed 0.6in.