Long-Stroke Digital Indicator, Series Series 2117, Resolution 0.01 mm, 0.0005 in, Accuracy +/-0.0015 in, Range 0 in to 4 in, Bezel Yes, Long Form Calibration Certificate No, Features Long Stroke Digital Indicator, Meet Asme B89.1.10m-2001 Standard, Includes Spindle Lift Knob