YF S201 Water Flow Measurement Sensor Specifications
Operating Voltage: 4.5V to 18V DC
Output type: 5V TTL
Maximum current draw: 15mA at 5V
The sensor used: Hall Effect
Working Flow rate: 1 to 30 Liters/Minute
Accuracy: ±10%
Pulses per Liter: 450
Output duty cycle: 50% +-10%
Maximum water pressure: 2.0 MPa
Flow rate pulse characteristics: Frequency (Hz) = 7.5 * Flow rate (L/min)

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