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 setting: In standby mode or when the current display is active, press CAL + RESET for 5 seconds to enter unit conversion settings. Press RESET to select from LTR, GAL, PT, QT, or LTR as the desired unit of measurement. The cumulative filling volume will be displayed in the selected unit. Press MENU for 3 seconds to exit unit conversion settings. Note: This product requires 2 AAA batteries (included), which are replaceable. Low battery indicator displays "LBat" when voltage drops between 2.2V and 2.4V, alerting the user to replace the batteries. Color: Material: Plastic Model: K24 Compatible media: Methanol, fuel, chemical liquids, urea water Inlet connection: 1 inch internal thread Measurement accuracy: 1% Repeatability: 0.5% Maximum working pressure: 5 BAR Operating voltage: 2.3–3.3 V Flow range: 10–90 L/min Single count range: 0.00–9999.9 Total cumulative count range: 0.00–999999.9 Units available: L, gal, pt, qt Reset function: RESET button clears single measurement Package contents: 1 x K24 Turbine Digital Fuel Flow Meter Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement error allowance is +/- 1–3 cm.