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. Product requires 2 AAA batteries (included), with replaceable battery design. Low battery indicator displays "LBat" when voltage drops between 2.2V and 2.4V,提醒 user to replace batteries. Color: Black 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 count: 0.00–999999.9 Units available: L, GAL, PT, QT Single measurement reset: RESET 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.