The FenderSplendor FS 502 Coating Thickness Gauge (Mil Gauge) meets the standards of both ISO-2178 and ISO-2361 as well as DIN, ASTM and BS. The FS 502 is suitable for the laboratory and for use in harsh field conditions.
The F probes measure the thickness of nonmagnetic materials (e.g. paint, plastic, porcelain enamel, copper, zinc, aluminum, chrome etc.) on magnetic materials (e.g. iron, nickel, steel, etc.) . Often used to measure the thickness of galvanizing layer, lacquer layer, porcelain enamel layer, phosphide layer, copper tile, aluminum tile, some alloy tile, paper etc.
The Nfe probes measure the thickness of nonmagnetic coatings on non-magnetic metals. It is used on anodizing, varnish, paint, enamel, plastic coatings, powder, etc. applied to aluminum, brass, non-magnetic stainless steel, etc.