Advanced motion sensor, detects moving people or animals, and monitors in real time. Millimeter wave radar detection, can monitor whether there is someone in the room through breathing monitoring. Supports viewing history, you can see whether there is someone in the alarm record. APP remote control, motion sensor can master home security through Tuya/Smart Life App, detect your home security at any time. Motion alarm App notification, the sensor will detect people entering and leaving the detection area, and receive alarms in App notifications. Communication protocol:Zigbee Dynamic perception: 6 meters Static perception: 4.5 meters Wide angle perception: 130° Colour:White Material:plastic Package Contents: 1 x Human Presence Sensor 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.