Easy to clean, install andmaintainSuitable for factories, coach yard, gas station and house-hoodusingMax. 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: 0-60L/min.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