3. [Flexible in use] can be attached to the wall or wherever you need it. It's as light as a wireless hub, and it's powered by USB 5V. 1. [Functional Smart Human Presence Sensor] Featured as human presence, human static, human mini 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 with mmWave Radar Detection featured. 4. [Advanced New Design with Multiple Settings] Set the sensitivity from 1-6 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 avoid irrelevant annoying movement and reduce false alarm rate. 2. [Perceived Light Intensity for Smart&Scene Linkage] Illuminance monitor in Tuya Smart APP enables its smart feature as smart scene linkage with other smart devices, especially your house lights to ON/OFF automatically as the brightness changes; Besides, you can intelligently linkage the sensor to other smart home devices for home automation. Please note that due to different batches, there may be differences in the appearance, color, and printing of the product, which not affect its use, Weight: 0.18077905484 pounds, Manufacturer: Prterver