SEN0217, Water Flow Sensor, 0.5", for Arduino Development Boards

Gravity water flow sensor (1/2") for Arduino measures the rate of a liquid flowing through it. The YF-S201 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 as per needs.

• 11mm inner diameter, 20mm outside diameter
• Proof water pressure of <1.75 MPa
• Water flow range of 1-30L/min, voltage range from 3.5 to 12 V
• Operating current of 15mA (DC 5V)
• Insulation resistance of >100Mohm, accuracy is ±5% (2~30L/min)
• Output pulse duty ratio of 50% ± 10%
• Working humidity range from 25% to 95% RH (no frost)
• Dimension is 62mm x 36mm x 35mm/2.44 x 1.37 x1.37inch, weight is 52g