YF-S201 Water flow sensor

YF-S201 Water Flow Sensor

🔍 Overview:

The YF-S201 Water Flow Sensor is a compact and precise device for measuring the flow rate of water and other liquids. Ideal for Arduino and IoT-based automation, it generates digital pulses proportional to the flow—perfect for applications like smart irrigation, beverage dispensing, or water consumption tracking.

📌 Specifications:

• Model: YF-S201
• Flow Rate Range: 1 – 30 L/min
• Working Voltage: 5V – 18V DC
• Output Type: Digital pulse (Hall-effect)
• Pulse Rate: ~450 pulses per liter
• Connector: 3-pin (VCC, GND, Signal)
• Thread Size: 1/2” (standard pipe fitting)
• Material: Durable plastic with stainless steel rotor
• Working Temperature: ≤ 80°C
• Humidity Range: 35% – 90% RH
• Accuracy: ±10%
• Dimensions: ~58 × 35 × 26 mm
• Weight: ~50g

⚡ Features:

• 💧 Real-time liquid flow rate measurement
• 🔧 Easy-to-integrate 3-wire interface
• 📟 Outputs TTL pulses for accurate monitoring
• 🧠 Ideal for microcontroller-based systems
• 🧪 Resistant to corrosion and moderate pressure

🎯 Benefits:

• ✔️ Enables accurate flow metering in DIY projects
• ✔️ Reduces water waste through real-time tracking
• ✔️ Widely supported in open-source communities
• ✔️ Compatible with Arduino, ESP32, STM32, and others
• ✔️ Cost-effective solution for smart automation

❓ Why Choose This Product?

Whether you’re building a smart irrigation system or monitoring water usage in a DIY automation project, the YF-S201 Water Flow Sensor is an affordable and reliable solution. Its hall-effect pulse output makes it easy to program, calibrate, and deploy in countless use cases.

📦 Package Content:

• 1x YF-S201 Water Flow Sensor Module

📜 Documents:

No official datasheet was located,
but community tutorials and sample code are widely available for Arduino and Raspberry Pi integration.

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📷 Product Images: