Motion Detection Alarm, Battery Powered, 3x AAA/LR03, 80 dB, Detector range: 1.10 m

This easy-to-use Nedis door entry motion alarm detects movement using a CDS sensor, which means that a receiver is not needed. It comes with a mounting bracket which allows for the sensor to be adjusted in an angle of more than 300°. This way, you can both mount the alarm to a wall and to a ceiling to secure a room or other area efficiently.