This product can accurately detect whether there is a human in your home. When you are on a business trip, you can also control the dynamics of your home through your mobilephone to protect your family safety. Features: Featured as human presence, human static, human micro motion and human movement motion detection to detect the presence or absence of people in the area, even to detect the static state such as personnel sleeping accurately. Illuminance monitor enables its intelligent feature as inteeligent scene linkage with other intelligent devices, especially your house lights to ON/OFF automatically as the brightness changes; Besides, you can intelligently linkage the sensor to other intelligent home devices for home automation. Set the sensitivity from 1-9 to your own need, together with minimum detect range as 0.00m and maximum as 9.5m for flexible detection demand. Meanwhile, it is designed with hold time set as 0-1500s and detection latency set as 0-10s to avoids irrelevant annoying movement and reduce false alarm rate. Monitoring your house safety wherever and whenever with corresponding target distance display in APP. Ceiling installation, wide effective range. Specifications: Type: Wifi, Zigbee (optional) Color: white Diameter: 93mm / 3.7in Install size: 65 * 65mm / 2.6 * 2.6in Battery: 1 * CR2450, 3V, 520mAh Package size: 103 * 100 * 80mm / 4.1 * 3.9 * 3.1in Package weight: 186g / 6.6ounce Packing List: 1 * Human Presence Detector 1 * User Manual