Aqara Motion Sensor
The Aqara Motion Sensor is a wireless device that can detect motion in a room. At its core, it is a PIR (passive infrared) sensor that can detect the presence of people or animals in the room. When the sensor detects motion, it sends a signal to a connected smart home system, such as the Aqara Gateway, which can be used to trigger actions based on the presence of motion.
Aqara Motion Sensor guides
Using Binary Sensors for room occupancy
A quick and easy way of using multiple sensors for room occupancy in Home Assistant is to use Template Binary Sensors.