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. Functional ZigBee 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. ZigBee Hub as Control Center:Tuya ZigBee gateway is required for this ZigBee human presence sensor,performing as the center bridge for all Tuya ZigBee smart devices with extremely stable signal and a really good necessity for whole-house intelligence.(note:Tuya ZigBee hub is highly recommended for its compatibility than other hubs) Advanced New Design with Multiple Settings: It supports setting the following parameters: Presence Keep Time/Indicator Status/Radar Parameters(Sensitivity and distance)/Motion False Detection. (Note: Zigbee needs to be used together with a zigbee gateway, not including the gateway), Weight: 0.3417165061 pounds, Manufacturer: Yoeruers