Check the listing for details. Siemens QAA2280.FWSC Room Temp Sensor, White Brand New. Color: White, Condition: New, Made in China. Listed at 80.00 USD. The Siemens QAA2280.FWSC Room Temp Sensor is a brand new white air temperature sensor designed for HVAC and refrigeration systems. With the trusted Siemens brand and specific model number, this sensor ensures accurate and reliable readings of room temperature. Ideal for use in industrial and commercial settings, this sensor is a high-quality component for maintaining optimal heating and cooling conditions.The Siemens QAA2280.FWSC Room Temp Sensor is a brand new white air temperature sensor designed for HVAC and refrigeration systems. With the trusted Siemens brand and specific model number, this sensor ensures accurate and reliable readings of room temperature. Ideal for use in industrial and commercial settings, this sensor is a high-quality component for maintaining optimal heating and cooling conditions.