Motion Sensor alarm will go off when activated!
Know when someone is in a room right away!

This motion sensor alarm will help you find your way in a dark dorm room or house. It's very easy to use and install. The Passive infrared (PIR) detector will light up when it detects motion and turn off after 15 seconds. You can also turn on the 110 dB alarm making it a perfect motion activated alarm. It has a scan distance of 20 feet. Uses 4 AA batteries (Batteries not included)