Tactile Braille Caliper



  • Simple-to-use, accurate caliper for the blind and visually impaired
  • Displays measurements directly in Braille
  • Accurate to 1/16th of an inch

The Tactile Braille Caliper is a simple-to-use, accurate, low-cost, measuring ruler for the blind and visually impaired that provides a Braille measurement accurate to 1/16th of an inch.

The Tactile Caliper allows its user to measure with accuracy and speed. It can easily be used anywhere by people of all ages. It displays readings directly in Braille. It is a mechanical instrument that looks like a traditional Vernier Caliper. Whole units are statically embossed in braille on the main scale while fractions are dynamically displayed on a sliding jaw by a patent-pending display mechanism.

Calipers are used in many fields such as mechanical engineering, metalworking, forestry, woodworking, science, and medicine. This Tactile Braille Caliper was a 2013 award winner of the Center for Braille Innovation (CBI) Touch of Genius Prize.


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