Built on Sensirion’s latest 5th-generation CMOSens® Technology, the SFM3505 integrates the sensor element and advanced signal processing on a single microchip. This enables fast, stable, and fully calibrated digital output via a standard I²C interface, ensuring long-term reliability and robust operation over the sensor’s lifetime.
It is calibrated for air and oxygen and incorporates on-chip temperature compensation, ensuring precise measurements under varying conditions. Its optimized flow channel design enables minimal pressure drop across the full dynamic range, making it ideal for inspiratory flow measurements in applications such as mechanical ventilation, anesthesia, and gas mixing systems.
“With the SFM3505, Sensirion meets all customer requirements, including low pressure drop, low noise levels, and high accuracy at high flow rates, while also ensuring accurate operation at low flow rates – all in a compact form factor,” says Pauline Simonet, Product Manager for flow sensors.
