YF-S201 Water Flow Sensor
The YF-S201 Water Flow Sensor is a reliable Hall-effect based flow meter designed to measure the flow rate and total volume of water passing through a pipe. It features an internal rotor and magnetic Hall-effect sensor that generates pulse signals proportional to the water flow, making it ideal for Arduino, ESP32, Raspberry Pi, IoT, and industrial monitoring projects. Its compact design, high sealing performance, and easy installation make it a popular choice for smart water management systems.
Features
- High-quality Hall-effect sensing technology
- Measures water flow rates from 1 to 30 L/min
- Digital pulse output for accurate flow measurement
- Low power consumption
- Durable and waterproof construction
- Easy integration with Arduino, ESP32, Raspberry Pi, and other microcontrollers
- Standard 1/2-inch threaded water pipe connection
- Suitable for water dispensers, irrigation systems, smart water meters, and liquid monitoring applications
Specifications
- Model: YF-S201
- Sensor Type: Hall Effect
- Operating Voltage: 5V–18V DC (minimum tested 4.5V)
- Current Consumption: ≤15mA
- Flow Range: 1–30 Liters/Minute
- Output Signal: 5V TTL Pulse
- Accuracy: ±10%
- Maximum Water Pressure: 1.75–2.0 MPa
- Operating Temperature: -25°C to +80°C
- Pulses per Liter: Approximately 450
- Pulse Frequency: F (Hz) = 7.5 × Flow Rate (L/min)
- Cable Length: 15cm
- Connection Size: 1/2-inch Threaded Interface
Applications
- Smart Water Metering
- Water Dispensing Systems
- Home Automation Projects
- Irrigation Monitoring
- Industrial Fluid Measurement
- Water Consumption Tracking
- IoT-Based Water Management Systems
- Aquarium and Hydroponics Monitoring
