Sloan Letter Linear-Spaced Distance Chart600725
A Sloan Letter linear-spaced distance chart. Features line sizes ranging from 20/80 to 20/16. This chart can either be wall mounted or used in an ESV1200, ESV1500, or a Model A+ illuminated cabinet. Lines are labeled with 20 ft notations only.
Dimensions: 9" x 14" (22.9 cm x 35.6 cm).
Testing distance: 20 feet/6 meters.