Fowler Rugged Steel Xtra Value IP54 Digi-Micrometer, 1-2" Measuring Range, 0.00005"/0.001mm Resolution, RS-232 Output Digital outside micrometer with choice of measuring range and flat anvil/spindle pair for general purpose measuring LCD performs direct inch/metric conversions and has a switchable resolution of 0.00005" and 0.001mm Carbide measuring faces provide wear resistance Absolute and incremental modes provide a choice of measurement types RS-232 output provides ability to export readings to a computer (cable not included)