Water Flow Sensor YF-S401 Flowmeter 0.3-6L/min 3.5mm White

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!

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

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Package Includes:

1 x Water Flow Sensor YF-S401 Flowmeter 0.3-6L/min 3.5mm White