[1]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 )[2]More Accurany Functional ZigBee 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.[3]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.[4]Advanced New Design with Multiple Settings: Set the sensitivity from 0-10 to your own need,together with minimum detect range as 0.00m and maximum as 10m for flexible detection demand.Meanwhile,it is designed with hold time set as 0-3600s and detection latency set as 0-10s to avoid irrelevant annoying movement and reduce false alarm rate.Specification :Network:Zigbee 3.0Sensor input: USB 5VWorking temperature: -20~+85Sensitivity: 1-10Sensing distance:0-9mSensing radius:90 (max)Illuminance Sensor:0-10000luxTarget detection confirmation time:0-3600sTarget disappearance delay time:0-3600s.Material: plasticcolour: whitePackage Contents:1 x SensorOnly 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.