Wyze Room Sensor can detect which rooms are occupied and average the temperature readings between those rooms and Wyze Thermostat.
Your heating and cooling system will work to match your set point temperature with this average temperature. In the Wyze app, you can also assign the sensors to specific modes (Home and Sleep) so that the sensor only works when your thermostat is operating in that mode.
Example 1: You have 3 rooms with 1 room sensor in each room. When 2 of 3 rooms are occupied by families or guests, the thermostat and the 2 sensors' readings will be averaged. Your HVAC will work gradually to meet that average temperature.