【Accurate Purity Testing】This uses advanced density analysis to measure gold, silver, platinum, and palladium purity with 0.0001g/cm3 accuracy. As a reliable electronic and precious metal analyzer, it ensures precise results for karat testing and alloy identification in jewelry labs and retail. 【High Precision Stability】Featuring a high-sensitivity load cell with 0.001g weighing accuracy, this digital maintains performance with low-temperature drift and overload protection. This tester and metal testing device delivers consistent, repeatable measurements for professional use. 【Non-Destructive Analysis】Safely test gold, silver, and platinum without damage using this non-invasive precious metal density meter. As a trusted gold karat tester and jewelry testing tool, it preserves the value and condition of items during assessment. 【Real-Time LCD Readout】The digital display shows density, weight, karat, and purity instantly. This user-friendly gold testing machine and electronic precious metal analyzer makes it easy to read results on the go, ideal for quick evaluations in pawn shops or retail. 【Portable Rechargeable】Compact design with built-in rechargeable battery allows use anywhere. This handheld and portable metal analyzer is perfect for jewelers, dealers, and labs needing reliable, on-site testing of various precious metals.