G1/2 DN15 YF-S201 Water Flow Sensor

The YF-S201 is a Hall-effect water flow sensor with 1/2-inch (DN15) male threads. It uses an internal magnetic rotor to output digital electrical pulses proportional to water velocity.Specifications

• Flow Range: 1 to 30 Liters/minute
• Voltage: 5V to 18V DC
• Max Pressure: 1.75 MPa (253 PSI)
• Output: Digital pulse (Square wave)

Wiring

• Red: Power (VCC)
• Black: Ground (GND)
• Yellow: Pulse Signal

Formula

• Flow Rate (L/min) = Pulse Frequency (Hz) / 7.5