An additional motion sensor for your Vtech BM5000 video alarm. The sensor detects movements at 30 second intervals. The smart sensor has a pet function that can see the difference between humans and small animals, so it only detects movements from humans and not animals. The sensor can detect movement horizontally at an angle of 90 ° and vertically at an angle of 48 ° and has a detection range covering up to 7 x 7 meters. For maximum coverage in a rectangular space, it is recommended to mount the sensor in a corner.