The PJ-Plus Profile Projector comes with a number of optional accessories that can improve an already fantastic machine including an M2 2D processor, QM-Data or Optoeye, and a ring light. The M2 2D processor is a graphics-based part viewing system that can complete measurements automatically using distances and tangent lines. Tolerances, setting nominal, and deviation results are incredibly straightforward with the geometric tolerancing. The M2 2D processor is also customizable with various helpful formatting options. Optoeye is an edge detecting system used in tandem with the QM-Data 200 processing unit. Finally, the optional ring light is useful when completing assessments with 10x or 20x objectives. You can pick and choose any or all of these excellent accessories for the PJ-Plus Profile Projector.