water flow sensor YF-S201C flow meter G1/2




e YF-S201C Water Flow Sensor, also known as a flow meter, is a device used to measure the flow rate of liquids, particularly water. It is commonly used in various applications such as fluid flow control systems, irrigation control systems, and data acquisition and logging applications.

Key Features and Specifications:

  • The YF-S201C Water Flow Sensor has a G1/2″ coupling, which refers to the size of the threaded connection used to attach the sensor to a pipe or system.
  • It has a flow range of 1-30 liters per minute.
  • The sensor outputs an electrical pulse signal with every revolution of the water rotor.
  • It operates on a 5V power supply and has a TTL output.
  • The sensor is equipped with a hall-effect sensor that detects the rotation of the water rotor .
  • The material used in the construction of the sensor includes polyamide (nylon), zinc-plated screw, polyoxymethylene (POM) impeller, and SUS 304 steel shaft, among others .
  • The YF-S201C Water Flow Sensor can be connected to Arduino or other microcontrollers for data acquisition and measurement purposes .


  • Fluid flow control systems
  • Irrigation control systems
  • Water dispensers
  • Coffee machines
  • Data acquisition and logging applications


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