The viewing tools in this library are displaying series data (both time and frequency); they allow the user to select and get data from DMT monitor tasks; and they implemenent a main window class which has support for all standard features of a diagnostics viewer. These are displaying multiple graphics pads, save and restore of data in XML format, print to postscript and pdf, import and export data from and to ASCII and binary, set reference traces, apply calibration transformations and corrections, and compute simple math functions on the data traces.