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✯【Accurate Gold Purity Testing】Digital gold purity tester uses density and weight analysis to quickly evaluate the purity and K value of solid gold, silver, platinum, and palladium, with accuracy up to 0.0001 g/cm³. ✯【High-Precision Density Measurement】Featuring a high-precision weighing sensor, microprocessor control, temperature-drift resistance, and overload protection, this gold density tester delivers stable and consistent measurement results. ✯【Non-Destructive Testing】Electronic gold tester requires only two weighing steps without leaving marks or contamination. No sulfuric acid solution or standard test samples are needed for convenient precious metal purity analysis. ✯【Clear Digital Display】Digital density meter displays density, specific gravity, weight, purity, and gold K value with instant, easy-to-read results, helping users efficiently analyze solid precious metal samples. ✯【Wide Application】Gold purity tester is ideal for jewelers, pawn shops, laboratories, and precious metal dealers. Tests solid gold, silver, platinum, and palladium; not suitable for hollow or gemstone-mounted items.