Water Flow Rate Sensor YF-S201

Overview

Monitor liquid flow with precision using the YF-S201 Water Flow Rate Sensor. This compact, reliable sensor is perfect for DIY projects, smart home automation, and industrial monitoring. It outputs a digital pulse signal proportional to the flow rate, making it easy to interface with Arduino, Raspberry Pi, and other microcontrollers. Whether you're building a water consumption tracker, a brewing system, or an irrigation controller, the YF-S201 delivers accurate, real-time data.

Key Features

• Accurate Flow Measurement: Provides a pulse output (frequency) proportional to flow rate, with a typical accuracy of ±10%.
• Wide Flow Range: Measures flow rates from 1 to 30 liters per minute, suitable for various applications.
• Easy Integration: Simple 3-wire interface (VCC, GND, signal) works with 5V logic level.
• Durable Construction: Made of high-quality plastic and a robust Hall effect sensor for long-lasting performance.
• Low Power Consumption: Operates at just 5V DC with minimal current draw, ideal for battery-powered projects.

Technical Specifications

• Model: YF-S201
• Working Voltage: 5V DC
• Max Current: 15mA (at 5V)
• Flow Rate Range: 1-30 L/min
• Accuracy: ±10%
• Output: Pulse signal (frequency ~ 7.5 * Q, where Q is flow in L/min)
• Pulse Characteristics: Duty cycle 50% ±10%
• Connector: 3-pin JST or Dupont (depending on version)
• Cable Length: Approximately 15cm
• Operating Temperature: -25°C to +80°C
• Dimensions: ~62mm x 33mm x 25mm

Applications & Use Cases

• Smart Home: Monitor water usage in households, detect leaks, and automate irrigation systems.
• DIY Projects: Build custom coffee machines, beverage dispensers, or aquarium water change systems.
• Industrial Monitoring: Track liquid consumption in manufacturing processes or vending machines.
• Education: Teach students about flow measurement, sensor interfacing, and data logging.
• Agriculture: Control and monitor water flow in hydroponics or drip irrigation setups.

What's Included

• 1x YF-S201 Water Flow Rate Sensor
• 1x 3-pin connector cable (with stripped ends for easy wiring)

Compatibility

• Works with Arduino (Uno, Mega, Nano, etc.) and Raspberry Pi (with level shifter if needed).
• Compatible with 5V logic level microcontrollers.
• Can be used with most data logging shields and IoT platforms like Blynk, ThingsBoard, and Node-RED.

MOKWN Recommendation

For Egyptian makers, the YF-S201 is an essential component for water-related projects. Pair it with an Arduino Uno and a simple LCD to create a real-time water flow monitor. For more advanced IoT applications, consider our ESP32 development boards to send data to the cloud. Whether you're a hobbyist or a professional engineer, this sensor offers excellent value and reliability. Shop now at MOKWN and take your projects to the next level!