Features: Connect to 1-1/2 inch thread, hall effect. Flow range:5-150L/min, Water Pressure: equal or less than 1.75Mpa. Working voltage: for DC 5-24 V, F=(0.45xQ)2%, Q=L/Min. The Water Flow Sensor is light, nimble outline, small size and easy to install. It is mainly used in petrochemical industry, residential area flow control, waterworks-, farmland and garden irrigation, etc. Specifications: Material: Plastic Thread: 15-inch Size: approx 9.2x5.5x5.6cm/3.6x2.2x2.2in Rated voltage: 5V Measuring range: 3-12000(m3/h) Working pressure: 0-1.2(MPa) Voltage range: for DC 3.5-24V Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Water Flow Hall Sensor