Usage Tips:Features: Experience precise liquid measurement with our Digital Waterproof Flow Meter, featuring a high accuracy digital display and stainless steel construction, perfect for oil kerosene applications. This flowmeter boasts a design with corrosion resistant materials, unit conversion capability, and low power consumption, ensuring reliable performances in various conditions. Ideal for industrial engineers, laboratory technicians, and professional requiring accurate liquid measurement, this device offers versatilities and precisions for demanding tasks. Widely used in industry, our flow meter provide essential monitoring and management of liquid flow rates from 4 to 50 or 9 to 100LPM. Enhances your operational efficiency with this flow meter, to deliver consistent result and withstands industrial environment, making it a indispensable tool for fluid managements. Specifications: Material: Stainless Steel Size: DN20: About. 94x25mm/3.7x0.98in DN25: About. 94x32mm/3.7x1.26in Flow: 4-50LPM(DN20), 9-100LPM(DN25) Single Flow Ranges: 99999 Cumulative Counting Ranges: 299999999 Unit: QTS, PTS, L, GAL Pattern: DN20/DN25 Package Includes: 1pc Flow Meter note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.