The Meross Presence Sensor combines millimeter-wave Doppler radar technology with infrared motion sensors, creating a dual-detection sensor capable of recognizing biological movements, subtle motions, and presence status. Additionally, the product is equipped with a light sensor that can detect changes in ambient brightness in real-time. Once a change in biological movement or ambient brightness is detected, the sensor will promptly transmit the information to the Meross system or Matter platform. With Matter integration, the device can support all major platforms, like Apple Home, Google Home, Amazon Alexa, Samsung SmartThings and so on.