Air Flow Sensor for HVAC Siemens QVM62.1-HE is a high-performance device engineered to deliver precise air velocity measurement in HVAC duct applications. Using advanced hot film anemometer technology, it provides stable and accurate readings even in fluctuating airflow conditions, ensuring reliable system performance. This HVAC airflow sensor supports both 0–10 V and 4–20 mA output signals, making it highly compatible with BMS, SCADA, and HVAC control systems. This sensor comes with a robust design that includes an immersion stem, transducer, and adjustable flange for easy installation and calibration. Applications: Laminar Air Flow Cabinets, HVAC, Biosafety Cabinets, Pharmaceutical Clean Rooms, AHUs, hospital ventilation, laboratory etc.