
AU-3000K Digital Electronic Gold Testing Equipment Metal Density Measuring Instrument Purity Test Machine. High Precision Testing: Density resolution up to 0.001 g/cm3 and weight resolution up to 0.005g for accurate results. Non-Destructive Testing: No need to cut samples; measures purity without leaving stains or scratches on jewelry. Multi-Metal Analysis: Tests gold, platinum, silver, and alloys, displaying K value, PT value, S value, and density. Simple Two-Step Operation: Quick measurement in 5-20 seconds: weigh in air, then in water, press ENTER to display results. CE & FCC Certified: Meets international safety standards with CE and FCC certifications for global compliance. Lifetime Maintenance: Comprehensive after-sales support including one-year warranty and lifetime maintenance service. OEM Service Available: Original manufacturer offering OEM services to print your logo on the instruments. RS-232 Connectivity: Standard RS-232 interface allows convenient connection to PC and optional AU-40 printer.