Usage Tips:Features: [Excellent Quality] This fuel flow meter is made of premium material, durable and easy to use. [Good Performance] The K24 turbine digital diesel fuel flow meter has a modular design, fully functional, simple structure, and high stability, convenient to operate. It can be used to measure methanol, diesel, fuel, and urea water. [LCD Display] Digital diesel fuel flow meter comes with an LCD display which is convenient for clear reading. It is fully functional, easy to operate, and has a simple structure. [High Accuracy] The measuring accuracy of this flow meter is 1%, suitable for most applications. [Application] Widely used in petroleum, industry, medicine, transportation, food industry, and commercial fields. 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: 2.3–3.3 V Flow range: 10–90 L/min Single count: 0.00–9999.9 Total cumulative number: 0.00–999999.9 Unit: L/L, gal/GAL, pint, quart Single measurement reset: RESET Setting units of measurement: In standby mode, or during current display state Press CAL + RESET button for 5 seconds Enter unit conversion settings, press the RESET button Select LTR, GAL, PT, QT, LTR to choose the 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. Battery replacement is supported. Low Battery Indicator: When the battery voltage is between 2.2 V and 2.4 V, the display shows "LBat" to remind the user to replace the battery. Color: Black & Blue Material: Plastic Package Contents: 1 x Turbine Fuel Flow Meter Only the above package content is included; other items are not included. Note: Light reflection and differences in display screens may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement error allowance is +/- 1–3 cm.