Mitutoyo Outside Micrometer with Non-Rotating Spindle Specifications include... 3-4" / 75-100mm Measuring Range 0.00005" / 0.001mm Resolution + 0.0002" Accuracy Features include... Non-Rotating Spindle SPC Output Functions include... Origin-set, Zero-setting, Data hold, Data output, inch/mm conversion Alarm: Low voltage, Counting value composition error