AU-300K Digital Electronic Precious Metal Gold Purity Analyser Meter Density Tester Karat Detector with 300g Maximum Weight 0.001g/cm3 Density

▲(1)The high precise AU-300K precious metal detector weighting resolution:0.005g,minimum weight:4g,density resolution:0.001g/cm3. Data interface is

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AR-300K Gold Purity Tester Density Meter Can Detect Various Precious Metals