Specifications: Network: Zigbee Radar Frequency: 24GHz Input: 220V Working temperature: -10~+50 1.Functional Wifi Smart Human Presence Sensor 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 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. Set the sensitivity to your own need,together with minimum detect range for flexible detection demand.Meanwhile,it is designed with hold time and detection latency to avoid irrelevant annoying movement and reduce false alarm rate. Colour: White Material: plastic Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Package Contents: 1 x Millimeter Wave Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.