Water Flow Sensor YF-S201 1/2''

Precision flow monitoring for smart water systems. The YF-S201 is a compact, high-accuracy water flow sensor designed for DIY electronics, automation projects, and smart appliances. It uses a magnetic rotor and Hall-effect sensor to output digital pulses proportional to flow rate—perfect for Arduino, Raspberry Pi, and microcontroller-based setups.

Key Features:

• Operating Voltage: 3.5V–24V DC
• Flow Range: 1–30 L/min
• Output Signal: Square wave, 450 pulses per liter
• Sensor Type: Hall-effect with magnetic rotor
• Build: Plastic body with stainless steel bead impeller
• Temperature Tolerance: Up to 80°C (medium); storage up to 120°C
• Water Pressure: ≤1.75 MPa

Applications: Water dispensers, irrigation systems, fluid monitoring, DIY automation

Wiring Guide:

• Red – VCC (Positive)
• Yellow – Signal Output
• Black – GND (Negative)

*image shown is a representation only.