Squirrel Devices’ product, Tactile Caliper is a measuring device with complete reading display in braille. It measures from 1/16 th of an inch up to 12 inches. Tactile Caliper only measures in inches and has a Mechanical Braille Display that displays the length in fractions also. The Caliper ’s mechanical slider moves in steps of 1/16 th of an inch and produces a click sound at every step.
How to use the Tactile Caliper:
Hold measurable object between caliper’s jaws
Read the closest inch marking from the ruler
Read the fraction from the Mechanical Braille Display
Watch a video about Tactile Caliper: How It Works
Buy here: National Braille Press