Precise human presence detection - 24G millimeter wave Radar Sensor can detect the movement and presence human body , more precise, supports detection of human motion, and human stationary.Tuya Smart Life App Control - Easily control and setting the human presence sensor and your home device through Smart Life App. Detect and monitor human body motion from your smartphone. Ideal for security and automation needs. Warmly tip: the device can not support Alexa and google assistant, because there is no need voice control. which will turn on/off the device through the radar monitor..Widely using applicaion - The sensor can be widely used in lights,security,garages,doors.smart home.smart hotel,LOT internet of things and other industries that need to detect human micro motion,motion and presence..Works with your smart home devices to create smart home scene - Our Smart Detection Sensor can accurately detect human presence, body motion, and movement, alerting you with a siren alarm for added security, such as the lights turn on once you enter the room or in the room and off after you leave. It is more convenience and saving energy to create your ideal smart home..Powered by type-C 5V/No Hub Needed - the wall mount can be attached to the wall or wherever you need it.and it's powered by USB 5V.,And no need hub to operate.use 2.4G wifi network to pair with tuya "Smart Life App"