Control panel with modular design, fully functional, simple structure, and convenient operation. Suitable for use in petroleum, chemical, pharmaceutical, transportation, and food industries for industrial and commercial applications. Unit of measurement settings: In standby mode or during current display, press CAL + RESET for 5 seconds to enter unit conversion settings. Press RESET to select LTR, GAL, PT, QT, or LTR as the desired unit. The cumulative filling volume will be displayed in the selected unit. Press MENU for 3 seconds to exit unit conversion settings. This product requires 2 AAA batteries for operation (included), which are replaceable. When the battery voltage drops to 2.2V–2.4V, the display shows "LBat" to indicate low battery and prompt replacement. Color: As shown Material: Plastic Model: K24 Compatible media: Methanol, fuel, chemical liquids, urea water Inlet: 1 inch internal thread Measurement accuracy: 1% Repeatability: 0.5% Maximum working pressure: 5 BAR Operating voltage: 2.3–3.3V Flow range: 10–90 L/min Single count range: 0.00–9999.9 Total cumulative count range: 0.00–999999.9 Available units: L, gal, pint, quart Single measurement reset: RESET button Package contents: 1 x K24 Turbine Digital Fuel Flow Meter Note: Light reflection and differences in display screens may cause slight variations between the item color in the image and the actual product. Measurement may vary by +/- 1–3 cm.