Coating Thickness Gage Advanced Electronic Base Material Ferrous Metal Measuring Range 0 to 250 mil Accuracy + (0.01 mm + 3 Percent) +/-(0.01 mm + 1 Percent) 0 to 2.5 mm +/-(0.5 Mils + 1 Percent) 0 to 100 Mils +/-(0.5 Mils + 3 Percent) 100 Mils 2.5 mm Data Storage Yes USB Interface Recording Capacity 10 000 3 ft Cord Length NIST Calibration Certificate AAA Battery Type