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 and hold the CAL + RESET button for 5 seconds to enter unit conversion settings. Press the RESET button to cycle through LTR → GAL → PT → QT → LTR to select the desired unit. The cumulative filling volume will be displayed in the selected unit. Press and hold the MENU key for 3 seconds to exit the unit conversion settings. This product requires 2 AAA batteries (included) for convenient use. When battery voltage drops to 2.2V–2.4V, the display shows "LBat" to indicate low battery and prompt replacement. Color: Blue & White 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 Measurement Range: 0.00–9999.9 Total Cumulative Measurement Range: 0.00–999999.9 Units Available: L/L, gal/GAL, pint/PT, quart/QT Single measurement reset via RESET button Package Contents: 1 x K24 Turbine Digital Fuel Flow Meter Note: Light reflection and display differences may cause slight color variation between the image and the actual item. Measurement may vary by ±1–3 cm.