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Sensirion Flow Sensor - SFM3000-200C

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The SFM3000 sensor is Sensirion’s digital flow meter designed for high-volume applications. It measures the flow rate of air, oxygen and other non-aggressive gases with superb accuracy. A special design of the flow channel results in the very low pressure drop through the flow body of the sensor making it extremely suitable for very demanding applications, such as medical ventilation and respiratory applications.

The SFM3000 operates from a 5 Volt supply voltage and features a digital 2-wire I2C interface. The measurement results are internally linearized and temperature compensated.

The outstanding performance of this sensor is based on Sensirion’s patented CMOSens® sensor technology, which combines the sensor element, signal processing and digital calibration on a single microchip. The flow rate of the gas is measured by a thermal sensor element which assures very fast signal processing time and bidirectional measurement with best-in-class accuracy.

The well-proven CMOS technology is perfectly suited for high-quality mass production and is the ideal choice for demanding and cost-sensitive OEM applications.


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • It says "high-volume". Does this mean I can make an improved mass air flow sensor for my turbocharged vehicle? I currently use a stock sensor mounted in a larger diameter tube and modified the ECU tune to compensate because otherwise the sensor will max out under boost. What is the tube diameter? Please do not explain to me that the I2c will not talk to my ECU as I already understand this. :)

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