Smart Human Presence Detection: Equipped with advanced Bluetooth technology, this sensor detects both movement and stillness, directly controlling connected lights for optimal efficiency. Lights turn on when presence is detected and off when areas are unoccupied, ensuring savings. Description/Features: Enhanced Privacy with 24G Mmwave Radar: Featuring cutting-edge 24G millimeter wave radar, this sensor captures even the slightest movements without the need for a camera, safeguarding your privacy. Ideal for maintaining illumination in static situations like reading without compromising security. Effortless Installation & Broad Coverage: Designed for simple ceiling embedding, the sensor offers a substantial detection range up to 6 meters with a maximum installation height of 3 meters. Avoid placement near dynamic objects such as curtains to prevent false alarms., Manufacturer: Akfldms