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Water Flow Sensor YF-S401 Flowmeter 0.3-6L/min 2mm White

472.00 (Including GST)

400.00 ( + 72.00 GST)


  1. Model: YF-S401
  2. Working Voltage: DC 5V~24V
  3. Maximum Working Current: 15mA @ 5V DC
  4. Flow Rate Range: 0.3~6L/min
  5. Outer diameter: 7mm
  6. Inner Diameter: 4mm
  7. Load Capacity: ≤10mA (DC 5V)
  8. Operating Temperature: ≤80℃
  9. Liquid Temperature: ≤120℃
  10. Operating Humidity: 35%-90%RH
  11. Water Pressure: ≤0.8MPa

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SKU: RDNA-124.16 Category:

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The Water Flow sensor measures the rate of a liquid flowing through it. The YF-S401 water flow
sensor consists of a plastic valve body, flow rotor, and hall effect sensor. It is usually used at the inlet
end to detect the amount of flow. When liquid flows through the sensor, a magnetic rotor will rotate
and the rate of rotation will vary with the rate of flow. The hall effect sensor will then output a pulse
width signal. Connect it to a microcontroller and you can monitor multiple devices such as your
coffee maker, sprinkler, or anything else, and control the water flow rate to suit your needs!


  • Red: Power In
  • Black: Ground
  • Yellow: Signal Output

Package Includes:

1 x Water Flow Sensor YF-S401 Flowmeter 0.3-6L/min 2mm White


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