About this item

💧 YF-S201 G1/2" Water Flow Sensor – 1 to 30 L/min

The YF-S201 water flow sensor is a Hall-effect flow meter designed to measure water flow rate in a pipe.
It outputs pulse signals proportional to flow, making it ideal for Arduino, ESP32, Raspberry Pi, and smart water systems.

🛡️ Features & Advantages

• 💧 Real-time water flow measurement
• 🔄 Pulse output (Hall-effect)
• 📏 Flow range: 1 to 30 L/min
• 🔌 Standard G1/2" thread
• ⚡ 5V compatible
• 🧰 Easy inline installation

📦 Technical Description

• 🧩 Model: YF-S201
• 📏 Flow range: 1 – 30 L/min
• 🔌 Supply voltage: 5 – 18 V DC
• 🔘 Output: pulse signal (frequency proportional)
• 🎯 Accuracy: ±10% (typical)
• 🌡️ Operating temperature: ≤ 80 °C
• 🔧 Thread: G1/2"
• 📏 Dimensions: approx. 60 × 35 mm

🛠️ Applications

• 🏠 Home water management systems
• 🤖 Arduino / ESP32 projects
• 💧 Water consumption monitoring
• 🧪 Prototyping and automation
• 🚿 Dispensing and fluid systems

⚠️ Usage Notes

• ❗ Use with clean water only (no particles)
• 🔧 Install following flow direction (arrow marked)
• 🛡️ Avoid excessive pressure
• 🔌 Use a stable power supply

✨ Key Features

• 💧 Hall-effect flow sensor
• 📏 1 to 30 L/min range
• 🔌 Standard G1/2" thread
• 🔄 Pulse output
• 📦 Ideal for water monitoring