Specifications: [Communication protocol] ZigBee, which needs to be connected with networking gateway;[Function introduction] Real-time detection of human presence, -movement detection (head off, waving, lifting, turning, brushing the phone, flipping books, etc.), motion detection (walking, trotting, running fast, turning in circles, jumping and other movements) [Intelligent linkage]It can create intelligent scenes with Tuya switches, , curtains and other intelligent products to achieve energy saving, environmental protection, security alarm and other functions. Cooperate with other intelligent devices to realize automation and scene control. Make smart hardware react faster and control more smoothly. Even if is disconnected, it can still be used. [Difference with traditional human PIR sensor].PIR infrared sensors can only detect human movement, but not when the person is stationary, with serious false alarms. Human presence sensor uses the principle of radar microwave, with human presence, human stationary, human -motion and human motion detection [Accurate detection of dynamics] Static human presence Static human presence This product uses advanced 5.8GHz millimeter wave radar technology to accurately detect whether there are people in the area, whether they are moving or stationary. Accurate identification, wide range of perception human or animal movement Built-in multi-person and sophisticated sensors, the intelligent algorithm can accurately identify whether there is someone in the room. Conical detection range with a sensing angle of 110 degrees Human -motion sensing radius is about 2m, motion sensing radius is 5m (installation height is 2-6m, ground projection). Description: Communication mode: Zigbee 3.0 Working voltage: USB 5V-1A (Type-C) Operating frequency: 5.8Ghz Dete angle: 110 degrees Detection distance: 0-10m Product size: 72mm x 72mm x 31mm Color: White Material: plastic Package Contents: 1 x Tuya ZigBee Smart 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.