U.S. Air Force Staff Sgt. Andrew LaBrake, 633rd Civil Engineer Squadron heating, ventilation and air conditioning craftsman, connects the Rover system to an HVAC unit’s fan coil at Langley Air Force Base, Va., Aug. 6, 2013. The system allows the HVAC team to save time and money with the use of a laptop to directly and digitally control the temperature. (U.S. Air Force photo by Staff Sgt. Ashley Hawkins/Released)