Digital Electronic Gold Purity Tester

We are the famous manufacturer of density meter based in china. We are producing, exporting density meter, densimeter, specific gravity meter.
Application pawn broking, bank, jewelry shop, precious-metals recovery, jewelry factory, gemstone testing center, precious metals researching etc.
in accordance with archimedes principle water buoyancy method, gbt1423 of precious metals testing standard, and so on.
combine archimedes principle with micro electronic technique; adopt sensor imported from germany, the purity can be calculated through measuring density of precious metals. Features of no damage on sample; simple operation, fast and accurate.
k value of gold, pt value of platinum, density value, purity percentage can be measured.