Control panel with modular design, fully functional, simple structure, convenient operation. Can be widely used in petroleum, chemical, pharmaceutical, transportation, and food industries for industrial and commercial applications. Setting units of measurement: In standby mode, or when the current display is active, press CAL + RESET button for 5 seconds to enter unit conversion settings. Press RESET button to cycle through LTR, GAL, PT, QT, LTR to select the desired unit of measurement. The cumulative filling volume will be displayed in the selected unit. Press the MENU key for 3 seconds to exit the unit conversion settings. Note: This product requires 2 AAA batteries for operation. Includes 2 AAA batteries. Features low battery indicator. When battery voltage drops to 2.2V2.4V, "LBat" will be displayed to remind the user to replace the batteries. Color: Material: Plastic Specifications: Model: K24 Media: Methanol, fuel, chemical liquid, urea water Inlet: 1 inch internal thread Measurement accuracy: 1% Repeatability: 0.5% Maximum working pressure: 5 BAR Operating voltage: 2.33.3 V Flow range: 1090 L/min Single count: 0.009999.9 Total cumulative count: 0.00999999.9 Units: L/L, gal/GAL, pint/PT, quart/QT Single measurement reset: RESET Package Contents: 1 x K24 Turbine Digital Fuel Flow Meter Only the above package content; other products are not included. Note: Light reflection and differences in display screens may cause slight color variations between the item in the picture and the actual product. Measurement error allowance: +/- 13 cm.