Photograph of several early prototypes of the Tactile Caliper

Tactile Caliper (Metric) is currently in production. Thanks to all the teachers and students across the globe who have helped make the Caliper nothing less than an amazing product!

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How to Use

A person closing the caliper jaws on the object to be measured

1. Hold the object to be measured between the jaws

A person touching the ruler to find and read the inch Braille markings

2. Read the closest centimeter marking from the ruler

A person touching the sliding jaw to read the fraction part displayed in Braille

3. Read millimeters from the Mechanical Braille Display