Water flow sensor consists of a plastic valve body、a water rotor、and a hall-effect sensor. When water flows through the rotor、rotor rolls. Its speed changes with different rate of flow. The hall-effect sensor outputs the corresponding pulse signal. This one is suitable to detect flow in water dispenser or coffee machine.
We have a comprehensive line of water flow sensors in different diameters. Check them out to find the one that meets your need most.
