Easy to clean, install andmaintainSuitable for factories, coach yard, gas station and househoodusingMax. measuring scale 9999.9, when it mass this scale, it will start from the zeroagain4 unit options Liters(L) Gallons(GAL) Pints(PT) Quarts(QT) for different countryusingSpecification:Size: 37 X 12 X 5.5cm 14.57 X 4.72 X 2.17inNozzle size: 1Flowing Rated: 060Lmin.Accuracy:1%Working Pressure: 0.03MpaOperating Temperature Range: 10C to55CInstallation Instruction:1.Reset to 0: Press DISPLAY for 1 second reset tozero2.Cumulative Total: Press CALIBRATE indicating the cumulative total fueling. When the cumulative total reaches a maximum reading 9999,9, it will automatically reset tozero3.Calibrate adjusting: PressCALIBRATE and hold for 10 seconds, press DISPLAY or CALIBRATE foradjusting4.Units Switch: PressCALIBRATE and hold for 5 seconds, press DISPLAY move to the last one. Then press CALIBRATE to choose units switch among Liters(L) Gallons(GAL) Pints(PT) Quarts(QT)Package Included:1 X GasolineGun1 X Connector