1. [Functional Smart Human Presence Sensor] Featured as human presence, human static, mini human motion and human motion detection to detect the presence or absence of people in the area, even to detect the static state that staff sleeping accurately with mmWave Radar Detection featured. 2. [Perceived Light Intensity for Smart&Scene Linkage] The illuminance monitor in Tuya Smart App enables its smart function as smart scene linkage with other smart devices, especially your home lights automatically turn on/off when brightness changes; Besides, you can smartly link the sensor with other smart home devices for home automation. 3. [Flexible Use] The wall mount can be fixed on the wall or anywhere you need. It is as light as a hub without and it is powered by 5V USB. 4. [New Advance with Multiple Settings] Adjust the sensitivity from 1 to 6 according to your own needs, as well as a minimum detection range of 0.00m and a maximum detection range of 9.5m for flexible detection demand.