... -ray Precision metal tester (NAP7800) Precision metal tester Detailed Product Description1.Display screen 2.Anti-radiation, ... Weight: 50Kg 3.Analysis: Au ,Ag ,pt ,Pd,Rh ,Ru ,Cu,etc 4.0.001,X-ray ... user security, it’s installed the automated anti-radiation device.Detailed features:Analysis Elements: Au ,Ag ... :4~50Kv X-Ray Source: Mo Material X-ray light tube( Wind Cool, No radiation) Max. Power: ...