describe:Easy to clean, install andmaintainSuitable for use in factories, carriage yards, gas stations and househoodsMaximum. Measuring scale 9999.9, when it masses this scale, it will start from zeroagain4 unit options: liter (L) / gallon (GAL) / pint (PT) / quart (QT) for use in differentcountriesSpecification:Dimensions: 37 X 12 X 5.5 cm/14.57 X 4.72 X 2.17inchesNozzle size: 1'Rated flow: 0-60L/min.Accuracy:1%Working pressure: 0.03MpaOperating temperature range: -10C to55CInstallation Notes:1. Reset to "0": Press "DISPLAY" for 1 second to reset tozero2. Cumulative Total: Press "CALIBRATE" to display the cumulative total refueling amount. When the accumulative reaches the maximum reading 9999,9, it will automatically return tozero3. Calibration adjustment: long press "CALIBRATE" for 10 seconds, press "DISPLAY" or "CALIBRATE" toadjust4. Unit switch: Press "CALIBRATE" and hold for 5 seconds, press "DISPLAY" to move to the last one. Then press "Calibrate" to select the unit to switch between liters (L) / gallons (GAL) / pints (PT) / quarts (QT)Package Included:1 X gasolinegun1 X connector