Ambient Air Temperature Sensor. "Standard manufactures a full line of engine management related products, including ignition and emission parts, on-board computers, ignition wires, battery cables, fuel system parts, as well as almost all the high technology critical components for late model vehicles, including distributorless ignition system (DIS) control modules; oxygen sensors; exhaust gas recirculation (EGR) valves; high energy and coil-on-plug coils; fuel injectors and pressure regulators; a wide range of anti-lock brake, temperature, camshaft, crankshaft, knock, MAP and throttle position sensors; and remanufactured on-board computers and mass air flow sensors.".Standard is a leading manufacture of a full line of engine management related products, from fuel to ignition to exhaust and all electronics in-between