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YF-S201 Water Flow Sensor

Compact water flow sensor based on the Hall Effect principle for accurate liquid flow measurement
Measures flow rates in the range of 0.3 to 6 Liters per minute (L/min)
Features a standard 1/8" threaded pipe connection for easy in-line installation
Provides a 5V TTL digital pulse output proportional to flow rate
Operates on a wide supply voltage range of 5V to 12V DC
Suitable for water dispensers, coffee machines, irrigation, and DIY flow monitoring projects

Non-returnable

SKU - YTX2526018

₹184.00

₹200.00

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Product Details

YF-S401 Hall Effect Water Flow Sensor Meter

The YF-S401 Water Flow Sensor is a compact and reliable liquid flow measurement device designed for low-flow applications such as water dispensers, coffee machines, and DIY monitoring systems. It operates using the Hall Effect principle, where an internal rotor spins as water flows through the sensor, generating electrical pulse signals proportional to the flow rate.

Each pulse output corresponds to a specific volume of liquid passing through the sensor, allowing a microcontroller to calculate both instantaneous flow rate and total water consumption. The sensor features a durable plastic body, a sealed internal structure, and standard threaded pipe connectors for easy in-line installation.

🔧 Key Features

Hall Effect Sensing: Generates digital pulse signals proportional to liquid flow.
Low Flow Measurement: Supports flow rates from 0.3 to 6 L/min, ideal for precision dispensing.
Compact Inline Design: Equipped with 1/8" threaded pipe connections for simple installation.
TTL Pulse Output: Outputs a clean 5V digital signal compatible with Arduino, ESP32, and Raspberry Pi.
Wide Voltage Support: Operates on 5V to 12V DC power supply.
Durable Construction: Designed for long-term use with water and non-corrosive liquids.

💡 Applications

Coffee Machines and Beverage Dispensers
Water Dispensers and Purification Systems
Smart Irrigation and Flow Monitoring
DIY Water Usage Measurement Projects
Industrial and Home Automation Systems

⚙️ Technical Specifications

Model	YF-S401
Sensing Method	Hall Effect
Flow Rate Range	0.3 – 6 L/min
Operating Voltage	5V – 12V DC
Output Signal	Digital Pulse (TTL)
Output Type	Open Collector / Square Wave
Accuracy	±5%
Maximum Water Pressure	≤ 0.8 MPa
Liquid Temperature	≤ 80°C
Pipe Interface	1/8" Threaded