Checkline 3000EZ [DCFN-3000EZ] Paint Thickness Gage, Coating Thickness Gauge, Combination Ferrous (140 mils / 3500 Microns) and Non-Ferrous (120 mils / 3000 Microns). Checkline DCFN-3000EZ Coating Thickness Gauge with Built-In Probe, Measures Coatings on Ferrous Metals up to 140 mils / 3500 Microns and NON-Ferrous Metals up to 120 mils / 3000 Microns. The 3000EZ Series Paint Thickness Gage, Coating Thickness Gauge provides fast, non-destructive, accurate coating measurements on steel and non-ferrous metals. Designed to accommodate a wide range of laboratory and field applications and manufactured to international quality standards, the 3000EZ Series Coating Thickness Gauge will provide years of trouble-free use. The 3000EZ Series Paint Thickness Gage, Coating Thickness Gauge is designed for testing non-magnetic coatings such as varnish, paint, enamel, chrome, copper, zinc, etc. on steel and iron (magnetic induction method) and all electrically insulating coatings, such as varnish, paint, anodizing coatings on non-ferrous metals, also on stainless steel (eddy-current method).