Catalog > Internet of Things (IOT) Related Products > More Platforms G1/4inch Water Flow Sensor G1/4inch Water Flow Sensor AZL G1/4IN WATER FLOW SENSOR 1/4IN DN15 NPS WATER FLOW SENSOR WITH WATER ROTOR AND HALL EFFECT SENSOR Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview Water flow sensor consists of magnetic core, rotating impeller, external casing and sensor and a hall-effect sensor. When water flows through the rotor, rotor rolls, it activates the magnetic core to trigger switch action speed changes with different rate of flow. The hall-effect sensor outputs the corresponding pulse signals, users can get the flow speed via detecting the pulse. It is suitable to detect flow in water dispenser or coffee machine. There are also lots of other water flow sensors in other diameters for your choice. The water flow sensor outputs pulse proportional to the water flow with: Pulse Frequency = Flow* 98.That is, if the output frequency is 48, then the water flow: 48/98= 0.5(L/min) Specifications Mini. Working Voltage : DC 4.5V Max. Working Current : 15mA (DC 5V) Working Voltage : DC 5V~24V Flow Rate Range : 0.3~6L/min Load Capacity : ≤10mA (DC 5V) Operating Temperature : ≤80°C Liquid Temperature : ≤120°C Operating Humidity : 35%~90%RH Water Pressure : ≤2.0MPa Storage Temperature : -25~+ 80°C Storage Humidity : 25%~95%RH Downloads Using Flow Sensors with Arduino ZIP File 831.00 B References How Magnetic Reed Liquid Level Sensors Work