Sensirion SFM4200 Digital Mass Flow Meter

Description of product


Sensirion SFM4200 Digital Mass Flow Meter measures air, oxygen, and other non-corrosive gases with high accuracy. This mass flow meter features high resistance against burst pressure up to 13bar and can be operated at pressures of up to 8bar. The SFM4200 mass flow meter measures flow rates up to 160slm with a rapid signal processing time of 0.5ms. This mass flow meter is ideal for use in high-volume medical applications such as oxygen gas mixing in respiratory applications, where the sensor is integrated into the high-pressure side. Customers can install the SFM4200 flexibly, allowing them to use it to significantly develop their own products or to transform the design.


  • Based on Sensirion's patented CMOSens® sensor technology
  • 0slm to 160slm flow range
  • 0°C to 50°C operating temperature range
  • Up to 8bar operating pressure
  • 0.5ms fast update time
  • 5V supply voltage
  • Digital 2-wire I2C interface


  • Medical
  • Process automation
  • Spectroscopy
  • Environment monitoring
  • Laboratory