Description
The YF-S201 Water Flow Sensor is a Hall Effect–based flowmeter used to measure the flow rate of liquids. It outputs digital pulses proportional to the flow rate, which can be easily read by microcontrollers like Arduino, ESP8266, or ESP32.
Perfect for water monitoring, automation, and smart home applications, this sensor gives accurate, repeatable readings and is simple to integrate into any liquid-based system.
💡 Key Features:
💧 Detects and measures water flow in pipes
⚙️ Built-in Hall Effect sensor for accurate pulse output
🔌 Works with Arduino, ESP32, and STM32
📊 Ideal for DIY projects like water dispensers, filtration, or irrigation systems
🔧 Features & Specifications:
| ⚙️ Feature | 🔍 Details |
|---|---|
| 🌊 Model | YF-S201 |
| ⚡ Working Voltage | 5–18V DC |
| 🔄 Flow Range | 1–30 L/min |
| 💧 Sensor Type | Hall Effect Water Flow Sensor |
| ⚙️ Output Type | Pulse Frequency Signal |
| 🔌 Interface | 3-pin (VCC, GND, Signal) |
| 🧩 Compatible With | Arduino, ESP8266, ESP32, STM32 |
| 🔧 Thread Size | 1/2 inch (nominal) |
📦 Package Includes:
- 1 × YF-S201 Water Flow Sensor
🚚 Dream RC is giving you the best deal in Bangladesh – high quality at the lowest price!
💬 What is the YF-S201 Water Flow Sensor price in BD (Bangladesh) & why buy from us?
The YF-S201 Water Flow Sensor current price in Bangladesh is 379 BDT.
From us – Dream RC, you can get the YF-S201 sensor at the most affordable price with the lowest delivery charges & fast shipment all over Bangladesh.









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