Monitor the temperature of a room with this small Surface Mount Remote Indoor Temperature Sensor that can be painted over to become almost invisible in a residential installation. Connect this indoor sensor to you RC Series thermostat and you can sense temperature from a remote location. As an add-on sensor, it can display the remote location's temperature on the thermostat's display. As a replacement sensor, you can use it to hide the thermostat in a closet or other location while keeping the sensor in an optimum location for temperature sensing.