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I have installed three of these remotes (in addition to the one included with the ecobee3 theromstat), to extend the efficiency of the ecobee3. Now only the temperature in rooms that are occupied are considered in determining the temperature sensed by the thermostat. My thermostat is in a location that is convenient for seeing and accessing the thermostat, but it is a room that I rarely use. With the remotes, the temperature of rooms actually in use is averaged and used to determine whether more heating or cooling is required in the rooms where people actually are. From the thermostat, I can see at a glance what the temperature is in each room with a sensor and whether that room is occupied. Comfortable temperatures actually seem to follow me around the house. In reporting data provided by the thermostat, I can graphically see when temperatures were adjusted based on occupancy information.