Use With THP9045 Wire Saver, C7089U1006 Outdoor Air Sensor * The L terminal is an input or output.; Selectable: Programmable or Non-Programmable * 4 9/16 in. high x 6 in. wide x 1 1/4 in. deep * 7 Day Multiple Day Programming or Non-Programmable * 10 square inch Touchscreen Display