1.Portable Paint Coating Thickness Gauge 2.Compact aluminum outershell ,F&NF 3.range 0~1250um,other ... on magnetic substrate.Such as:(aluminum,chrome,copper,enamel,rubber,paint)on magnetic substrate(steel,iron,alloy and magnetic stainless ... nonconductive coating layers covered on nonferrous substrateSuch as:(enamel,rubber,paint,vanish,plastic anodic-oxide layer)covered on nonferrous substrate(aluminum ...