Digital Indicator, Series Series 543, Resolution 0.01 mm, Accuracy +/-0.003 mm, Range 0 in to 0.47 in, Bezel Rotates 330 Deg., Long Form Calibration Certificate No, Features 8mm Stem, Flat Back, Origin Set, Zero Set, Go+/-Nogo, Counting Direction Change, On/Off, Data Output, Internal Calculations Using The Simple Formula Of [F(X) = Ax)]