High-accuracy measurement with ±0.5% precision. User-friendly LCD screen displays real-time data. and easy-to-maintain design. Multifunctional operation: preset quantity or amount fueling. name:Quantitative Gear Flow Meter Diameter: 1 inch Flow Range:Minimum: 10L, Maximum: 20-120L/min Medium Supported:, , Gasoline, Water Voltage Options:DC12V, Accuracy:±0.5% Display:LCD showing volume, amount, unit price Accumulation:Volume: 0-99999.99L; APPLICATION: Suitable for industrial, vehicle-mounted, and marine fueling systems. Compact and portable design for flexible use. Designed for precise, efficient fueling in scenarios. Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Color: As Shown Material: plastic+metal Package Contents: 1 x Gear flowmeter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.