The Carrier ZONEXX0DTS01 Zoning System Duct/HP Sensor is a temperature-sensing component designed for Carrier Comfort Zone II HVAC zoning systems. It monitors the supply air temperature within ductwork and sends readings to the zoning controller, helping regulate system operation and maintain safe temperature limits. It is used with compatible central air conditioning and heat pump eq... https://www.partshnc.com/zonexx0dts01-carrier-zoning-system-ducthp-sensor