Water flow Sensor – YFS401

Water Flow Sensor – YF-S401

The YF-S401 Water Flow Sensor is a compact and high-precision device used to measure low water flow rates in pipelines. It uses a hall-effect sensor to generate pulse signals proportional to the flow, making it ideal for accurate monitoring in small-scale systems and IoT applications.

Key Features

• Hall-Effect Sensor: Generates pulse output based on water flow
• High Accuracy for Low Flow: Optimized for small flow rates
• Compact Size: Ideal for tight spaces and small pipelines
• Durable Construction: Corrosion-resistant plastic body
• Digital Pulse Output: Easy interfacing with microcontrollers
• Low Power Consumption: Suitable for continuous monitoring

Applications

• Water Flow Monitoring: Accurate measurement in small pipelines
• IoT & Smart Systems: Real-time water usage tracking
• Medical & Lab Equipment: Precise fluid control
• Aquariums & Hydroponics: Controlled water flow
• DIY Electronics: Smart water meter projects

Technical Specifications

• Model: YF-S401
• Operating Voltage: 5V–18V
• Operating Current: ≤15 mA (5V)
• Flow Range: ~0.3 to 6 L/min
• Output Type: Pulse (digital)
• Pulse Frequency: ~98 × Flow Rate (L/min)
• Accuracy: ±10% (typical)
• Interface: 3-wire (VCC, GND, Signal)
• Operating Temperature: Typically up to 80°C

Product Example

YF-S401 Water Flow Sensor
Compact and precise sensor for measuring low water flow in embedded and IoT applications.

Why Choose This Sensor?

The YF-S401 is ideal for applications requiring accurate measurement of low flow rates. Its compact design and reliable pulse output make it easy to integrate into both beginner and advanced projects.