Manufacturer Name: Trane Product Number: SEN1561 OEM Part Number: SEN1561 Product Description: 3% Rm 4-20Ma Temp Sensor Weight:0.34lbs/154.22g The Trane SEN1561 temperature sensor is for use in HVAC systems. An electrical signal proportional to the air temperature is produced. This sensor is based on a solid-state polymer capacitive sensing element. For an efficient and reli... https://www.partshnc.com/3-rm-4-20ma-temp-sensor-4