FRn20-H0D Mass Air Flow Sensor

SKU: SEN0360

The FRn20 gas flow sensor adopts the MEMS thermal principle to measure the flow rate of gaseous media inside pipelines. Boasting high sensitivity and an ultra-low startup flow rate, it supports optional I2C or analog voltage output with excellent full-scale stability and repeatability. It is applicable to ventilators, air purifiers and other related equipment.

Front of cylindrical mass air flow sensor with display and buttons-DFRobot product sku:SEN0360 image.

Downloadable Resources

  • Docs
  • Tech Specs
  • 1. Example Code for Arduino-Get Air Flow-V2

    This blog post offers a comprehensive guide to measuring air flow using an Arduino UNO board and FRn20-H0D Air Flow Sensor, including hardware and software preparations, a wiring diagram, and sample code, along with important precautions to ensure accurate measurements and prolonged sensor life.

    2. Example Code for Arduino-Obtaining Flow Data via I2C Communication-V2

    This tutorial demonstrates how to use Arduino to obtain flow data via I2C communication.

    3. Example Code for Arduino-Get Air Flow-V1

    This blog post offers a comprehensive guide to measuring air flow using an Arduino UNO board and F1031V Air Flow Sensor, including hardware and software preparations, a wiring diagram, and sample code, along with important precautions to ensure accurate measurements and prolonged sensor life.

    Specification

    SEN0360SIZE

    **Measuring Range:**150SLM (SLM: standard litre per minute. Standard-state: 20℃ gas temperature and 101.325 kPa gas pressure)

    Parameter Category Parameter Name Value Unit
    Bore Diameter - 20 mm
    Flow Measurement Max. Flow Rate 150 SLM
    Measurement Accuracy ±(2+0.5FS) %
    Repeatability 0.5 %
    Max. Operating Pressure 200 kPa
    Operating Temperature 0~50
    Output Signal Output Type Digital I²C & Analog 0.5V~4.5VDC -
    I²C Communication Speed 100 kHz
    Signal Response Time ≤50 ms
    Electrical Parameters Operating Voltage 5~15 VDC
    Operating Current ≤30 mA
    Electrical Interface PH2.0-5P plug-in connector -
    Others Storage Temperature -20~65
    Measured Medium Dry, clean and non-corrosive gas -

    Pinout

    SEN0360 Pinout

    No. Name (Color) Function Description
    1 SDA I²C data pin
    2 SCL I²C clock pin
    3 GND Power ground
    4 VCC Positive power supply
    5 Vout Analog output

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