Hand Tools
2025 Gold and Precious Metals Density Tester, 0.1g/cm³ Accuracy, Non-Destructive Jewelry/Coin Purity Tester with Sensor, LCD, Rechargeable Battery, 300/0.1g
Lab Grade Gold & Precious Metals Accuracy - 2025 gold testing machine to test density, purity, K number, etc. Achieve an accuracy of 0.01 g/cm³ to verify the purity of gold, platinum and density of jewelry. Use an HBM sensor and 0.5mm ultra-thin...
https://www.bizrate.co.uk/handtools/2025-gold-and-precious-metals-oid40483192772.html