The Trane SEN02352 Ambient Temperature Sensor is a precision sensing component designed to monitor surrounding air temperature in compatible Trane HVAC equipment. It detects ambient temperature changes and sends corresponding electrical signals to the system’s control board, helping regulate heating, cooling, and equipment operation. Used in compatible air-conditioning and heating sys... https://www.partshnc.com/trane-sen02352-ambient-temperature-sensor-19-wire-length-40-c