Mitutoyo 543-562A Absolute LCD Digimatic Indicator ID-H, #4-48 UNF Thread, 0.375" Stem Dia., 0-1.2"/0-30.4mm Range, +/-0.0015mm Accuracy LCD display converts between English and metric units, has five user-selectable resolutions with a maximum resolution of 0.00002/0.0005 mm, an accuracy of + or - 0.00005/0.0015 mm, and a total measurement range of 0 - 1.2 inches/0 - 30.4 mm Sealed housing meets Ingress Protection Rating 30 (IP30) standards for dust and water protection Displays maximum and minimum value hold, the difference between high and low values, and changes from green to red when user-defined tolerances are exceeded Backup memory retains setup conditions when power is interrupted Remote controllable RS-232C data input and output, SPC data output, and choice of two power sources (AC or 9V battery)