Flow sensor features
Model: YF-S201
Sensor Type: Hall Effect
Operating voltage: 5 to 18 V DC (tested operating voltage min 4.5 V)
Maximum current consumption: 15 mA at 5 V
Output type: 5V TTL
Working flow rate: 1 to 30 Liters/Minute
Operating temperature range: -25 to +80℃
Operating humidity range: 35% to 80% RH
Accuracy: ±10%
Maximum water pressure: 2.0 MPa
Output duty cycle: 50% +-10%
Output rise time: 0.04us
Output fall time: 0.18us
Flow pulse characteristics: Frequency (Hz) = 7.5 * Flow rate (L/min)
Pulses per liter: 450
Durability: minimum 300,000 cycles