Meet the ecobee Room Sensor: a smart tool that detects occupancy and temperature to keep you comfortable and save you money on your energy bill when you are away. It communicates with the ecobee thermostat. The more sensors you use, the smarter your home gets.
You will be able to manage your room sensors form your smartphone or tablet. These works with ecobee4, ecobee3 Lite, and ecobee3.