Western’s Micro IIi Air Gage Readout provides fast and accurate measurements of internal and external diameters, tapers among other features. The air gage instrument features include a built in microprocessor, digital and analog color displays, USB & RS-232 serial data outputs, and auto calibration with master gages. Diameter, Taper and Roundness are displayed with resolutions to 5 micro-inches or .1 microns. Applications include measurement of IDs, ODs Tapers, and Runout to name a few. Western also designs and manufactures custom air gages for precision I.D. and O.D. match fittings, inspecting flatness, concentricity, perpendicularity, and parallelism.