YF-S201 Water Flow Sensor Module This is YF-S201 Water Flow meter Measurement Sensor with 1-30Leter/min Flow Rate in black colour. This sensor sits in line with your water line and contains a pinwheel sensor to measure how much liquid has moved through it. There’s an integrated magnetic hall effect sensor that outputs an electrical pulse with every revolution. The hall effect sensor is sealed from the water pipe and allows the sensor to stay safe and dry. Connection: - Red wire: +5V Black wire: GND Yellow wire: PWM output
Working Voltage: 5 to 18V DC (min tested working voltage 4.5V).
Max current draw: 15mA @ 5V.
Working Flow Rate: 1 to 30 Liters/Minute.
Maximum water pressure: 2.0 MPa.
Flow rate pulse characteristics: Frequency (Hz) = 7.5 * Flow rate (L/min).
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