The Electronic Digital Height Measuring Instrument is fitted with the highly precision capacitive measuring system. The built-in micro computer and chips with multi modes make it measuring in perpendicular direction between both surfaces, point and surface, hole center and surface, axle center and surface, alse for center distance of hole, diameter of bore and axle. As parts being on standard 90° measuring block,it can measure and analyze two dimensional data, convert between polar and rectangular coordinate, transfer coordinatesm measure diameter of bolt circle and process for two dimensional data. It is particularly suited for measuring some parts as case shape. It's ratio of price and performance is the optimal option for enterprises.