The Corui Tuya Zigbee Smart Human Presence Sensor is a wireless sensor that detects the presence of humans in real-time. It uses the Zigbee communication protocol and requires a gateway for operation. With its micro-motion detection capabilities, it can detect human presence, stillness, micro-motion, and motion. Unlike traditional human PIR infrared sensors, this sensor can also detect the brightness of the light. This sensor can be used to create intelligent scenes in conjunction with Tuya switches, lamps, curtains, and other smart products. By doing so, it enables energy saving, environmental protection, and security alarm functions. The sensor has a working voltage of DC 12V and a working temperature range of -20 to 70 degrees Celsius. It has a detection distance of 0.3 to 9 meters and a sensitivity level of 0-9 (default 7). The delay time can be adjusted using two parameters: target detection confirmation time (0-10 seconds) and target disappearance delay time (0.5 seconds to 25 minutes). Installation of the sensor is simple and requires mounting it on the ceiling. The product size is 92*30. Please note that the sensor needs to be used with a Zigbee gateway for wireless connectivity. The package includes one human presence sensor and an instruction manual. When installing the sensor, it is important to select an appropriate position on the ceiling to ensure effective coverage of the detection area. The equipment panel has a diameter of 93mm, and a circular hole with a diameter of 80mm should be opened on the ceiling for installation. Care should be taken when clamping the power and signal wires to avoid damage. Key Features: Real-time detection of human presence Micro-motion detection Motion detection Intelligent linkage with other Tuya smart products Energy saving and environmental protection Security alarm function Radar microwave technology for accurate detection Light sensitivity detection