Gravity: Arduino Digital Water Flow Sensor - 1/8

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!

 Note: *A 6 mm hose is recommended *Avoid unit contact with corrosive chemicals *The unit must be installed vertically, tilted no more than 5 degrees *Liquid temperature should be less than 120 C to avoid damage to unit

• Inner Diameter: 4 mm

• Outside diameter: 7 mm

• Proof Water Pressure: <0.8 MPa

• Water Flow Range: 0.3-6 L/min

• Voltage Range: 5~12 V

• Operating Current: 15 mA (DC 5V)

• Insulation Resistance: >100 MΩ

• Accuracy: ±5% (0.3-3L/min)

• The Output Pulse High Level: >4.5 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 = 5880 square waves

• Working Humidity Range: 35% ~ 90% RH (no frost)

• Dimension: 58*35*26 mm/2.28*1.37*1.02 inches

• Weight: 30g

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