General description This Wireless Motion Sensor Door Chime is designed to enhance security and convenience in various settings such as homes, offices, businesses, schools, and more. It features a motion sensor alarm and door chime, providing a reliable solution for monitoring entrances and ensuring your property remains secure. With 17 distinct ringtones and 5 adjustable volume levels, you can customize alerts to suit your preferences. The built-in LED indicator visually signals when the sensor is triggered, and the vibration function allows for silent alerts when needed. Technical specifications 17 ringtones 5 volume levels Wireless range: 918FT/280M in open area Motion detector rotation: 360 degrees left to right, 180 degrees top to bottom Power requirements: Infrared sensor needs 3 AAA batteries; receiver needs 3 AA batteries Compatibility and accessories Expandable system: can add up to 32 transmitters (motion sensors, magnetic sensors) and 8 remotes Installation Powered by