YF-S401 WATER FLOW SENSOR FLOWMETER 0.3-6L/MIN 3.5MM 5VDC 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! 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