Description

• YF-S401 water flow sensor with threaded connectors. Inner Diameter: 4mm, Outside diameter: 7 mm. Type 18 (1/8" / 3.175mm)

• Proof Water Pressure: <0.8 MPa

• Uses a Hall effect sensor to measure water flow rate via pulse output

• Flow range: 0.3–60 L/min, operating voltage 5V–12V DC

• Outputs a digital pulse signal proportional to flow rate

• Ideal for Arduino, ESP32, Raspberry Pi, and IoT automation systems

• Great for smart irrigation, water monitoring, liquid dispensing, and flow control

• Durable plastic housing suitable for cold and warm water systems