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. 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. 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. 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. Please note that due to different batches, there may be differences in the appearance, color, and printing of the product, which will not affect its use Network: WiFi Version: A-WIFI Ceiling Version / B-WIFI Side Mount Version Celling mount sensor input: 80-240VAC Wall mount sensor input: USB 5V Working temperature: -20℃~+70℃ Sensitivity: 1-9(default 7) Wall mount sensor sensing distance: 0.3-9m(Default 6m). Celling mount sensor sensing radius: 0-7m(Default 5m). Illuminance Sensor: 0-2000 LUX. Target detection confirmation time: 0-10s Target disappearance delay time: 2-1500s. Celling Mount Size: : Φ61xH39 mm Celling Mount Opening Size: 53-58mm [Functions And Features] Illuminance detection Various Detection Functions (Fretting Detection/ Presence Detection/Motion Detection/Distance measurement) Detection distance setting Adjustable Parameters Large area