Fe type is used for measurement of electrically non-conductive coating on non-ferrous metals, e.g., paint, plastic coating and anodic oxide film on aircraft, car, home appliances, aluminum alloy door and window, or other aluminum product. When the coating has slightly electrical conductivity, and if the electrical conductivity of the coating and substrate differs at least 3 times, e.g., chrome layer on copper. Gage can measure it too, Stainless Steel belong to this type not Fe type 1) Range: 0-1250um 0-50mils 2) Resolution: 1um / 0.1miles 3) Accuracy: +/-(3%+2um) or +/-(3%+0.1mils) 4) Battery: 1 x AAA (not include) 5) Size: 11cm x 4.5cm x 3cm
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