This box is available only on the High Point auto feature.
The Tolerance box allows you to define a tolerance value that essentially tells PC-DMIS when to stop searching for a high point within a given area. The tolerance value should always be less than the increment value. During the search process, PC-DMIS decreases the increment value until it is less than or equal to the Tolerance value supplied, indicating that the highest point in the current workplane has been located.