... (NAP7800) Precision metal tester Detailed Product Description1.Display screen 2.Anti-radiation, Weight: 50Kg 3.Analysis: Au ,Ag ,pt ,Pd,Rh ... to ensure the user security, it’s installed the automated anti-radiation device.Detailed features:Analysis Elements: Au ,Ag ,pt ,Pd,Rh ... consumption life of the X-ray tube.Warm-up and anti interference procedure is controlled by the reflected X-ray and ...