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! CityTechBD
When water flows through, the internal rotator will change its speed with different rates of flow, and the hall effect sensor outputs the corresponding pulse signal. Use with laser cutters or CNC to measure if and how much water is flowing through a laser tube or CNC spindle for cooling.
Connections:-
- Red: Power In
- Black: Ground
- Yellow: Signal Output
Specifications:
- Model: YF-S401
- Working Voltage: DC 5V~24V
- Maximum Working Current: 15mA @ 5V DC
- Flow Rate Range: 0.3~6L/min
- Outer diameter: 7mm
- Inner Diameter: 4mm
- Load Capacity: ≤10mA (DC 5V)
- Operating Temperature: ≤80℃
- Liquid Temperature: ≤120℃
- Operating Humidity: 35%-90%RH
- Water Pressure: ≤0.8MPa
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