Manufacturer Name: Trane Product Number: SEN1577 OEM Part Number: SEN1577 Product Description: Programmable Zone Sensor Weight:0.36lbs/163.29g The Trane SEN1577 Programmable Zone Sensor is a wall-mounted device used in residential and commercial HVAC systems to enhance comfort and potentially reduce energy consumption. https://www.partshnc.com/programmable-zone-sensor-10