Standard Machinery Group offers 518 Spectro Densitometer. Standard Machinery Group also offers products for the Graphic Arts, Commercial Printers and Publishers, etc. 518 Spectro Densitometer includes a complete range of printing functions like density, dot, trap, print contrast, hue error and grayness that enable the 518 Spectro Densitometer to excel at pressroom quality control. In addition, X-Rite`s special electronic function selection feature automates the process of reading an entire color bar. The 518 Spectro Densitometer is an advanced solution for any 4-color printing operation, including sheet-fed, web press, publication printing, and newsprint.