GTCO CalComp is a world leading manufacturer and supplier of digitizing and measurement products that are used for a wide range of design, engineering, construction, graphics, apparel, medical and GIS/mapping applications.

Founded in 1975, GTCO CalComp has produced and now supports over 1 million input systems in over fifty countries around the world, sold under some of the most recognized brand names in the peripherals industry.

Products Application DataSheet Download
Absolute Accuracy Resolution
DrawingBoard VI ±0.002 in / ±0.051 mm ±0.005 in / ±0.127 mm ±0.010 in / ±0.254 mm 12,700 lines per inch
Super L VI ±0.010 in/0.25 mm Up to 2,540 lines-per-inch
Roll-Up III 0.5 in/12.7 mm 2,540 lpi/100 lpmm
Surface-Lit AccuTab ± 0.005mm standard 0.006 mm (150 lpmm)
Quick Ruler -- --