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Air Flow Sensor AFM3020


SKU: Air Flow Sensor AFM3020 Categories: ,


Air Flow Sensor AFM3020 Introduction

Air Flow Sensor AFM3020 is an  digital flow meter specially designed for ventilator 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 AFM3020 operates from a 5 Volt supply voltage and features a digital I2C interface. The measurement result is output after internal calibration and temperature compensation. The outstanding performance of this sensor is based on sensor technology, which combines a thermal sensor chip and a high-performance integrated 24-bit AD acquisition CMOS microprocessor. The thermal sensor chip measures the gas flow, ensuring very fast signal processing time and higher accuracy than similar products.

Product Characteristics

  • Flow range: -10~200slm
  • Accuracy 2.5% of reading (typical value)
  • Quick response
  • Fully calibrated and temperature compensated
  • Small zero drift


  • Medical
  • Process automation
  • Burner control
  • Fuel cell control
  • Spectroscopy
  • Environment monitoring
  • Laboratory.


Flow Range -10~200² SLM
Accuracy ±2.5% m.v
Sampling Time 10ms
Supply Voltage 4.75-5.25V
Interface I²C
Operating Temperature 0~60℃
Offset Flow 32000