To improve the visibility, when the ratio of a determination region to a measurement region becomes smaller, in an analog meter as a means for inexpensively improving the visibility of measurement signals of length, load, voltage, current, etc.

A display apparatus uses an analog meter 8, in which the determination region is previously written in an easily viewable range to enlarge the display of the circumference of the determination region, by converting data by a display signal conversion part 4 by display conversion data set by a display conversion data input part 10 and outputting it to a pointer drive means 5.