Purity Tester *300g/0.001g, 6K-24K *RSC232 interface,LCD Screen *Parameter setup:7:3/6:4/5:5 *Test Density,Percentage,Karat 300g/0.01g 6K-24K Density Purity Tester MODELMH-300KMaximum weighing300gMeasurable range5-300gWeighing precision0.01gAverage weight0.001gS.G. precision0.001g/cm3Water temperatureCompensate setupYesSolution compensate setupYesGoldDisplay valueKarat and DensityKarat’s rangeIt ...