Gravity: Water Flow Sensor (1/2")

SKU: SEN0217

The Water Flow sensor measures liquid flow rate. It includes a plastic valve body, flow rotor, and hall effect sensor, typically used at inlets to detect flow. When liquid passes through, the magnetic rotor rotates (speed matches flow rate), and the hall sensor outputs a pulse signal. Connect to an Arduino to monitor/control devices like coffee makers or sprinklers and adjust water flow as needed!

Front of Water Flow Sensor for Arduino with circular dial and wires-DFRobot product sku:SEN0217 image.
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  • Specification

    Parameter Value
    Inner Diameter 11 mm
    Outside Diameter 20 mm
    Proof Water Pressure < 1.75 MPa
    Water Flow Range 1-30 L / min
    Voltage Range 7.5 V
    Operating Current 15 mA ( DC 5V )
    Insulation Resistance >100 MΩ
    Accuracy ± 5 % ( 2 ~ 30 L / min)
    The Output Pulse High Level > 4.7 VDC ( DC input voltage 5 V )
    The Output Pulse Low Level < 0.5 VDC ( DC input voltage 5 V )
    Output Pulse Duty Ratio 50 % ± 10 %
    Water-flow Formula 1L = 450 square waves
    Working Humidity Range 25 % ~ 95 % RH ( no frost )
    Dimension 62 × 36 × 35 mm / 2.44 × 1.37 × 1.37 inches
    Weight 52 g

    Pinout

    Number Color Name Description
    1 Green Signal Pulse Signal
    2 Red VCC 5~12 V
    3 Black GND GND

    Pulse Signal

    SEN0217 Gravity: Water Flow Sensor For Arduino Pulse Signal

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