The Brown & Sharpe TESA digital caliper uses an electronic measuring system that is immune to magnetic fields. The caliper is made of stainless steel, measures in inches or millimeters, and has a 1/4" high LCD for readability. Linear accuracy meets Deutsches Institut für Normung (DIN) 862 standards. This caliper is Ingress Protection 67 (IP67) rated, which means that the electronic components are resistant to debris and to submersion under standard conditions for up to 30 minutes. These calipers are suitable for use in applications where the highest accuracy is required, especially in scientific research and in industries where parts must fit exactly.
Stainless steel resists corrosion, rust, and staining. The caliper works with one CR 2032 3V lithium battery, which will provide approximately 1.5 years of use (sold separately). The caliper preserves battery life by entering an idle mode after 10 minutes of inactivity and automatically shutting off after 2 hours.
Calipers measure the distance between two opposing sides of an object. They make inside, outside, depth, or step measurements, according to their type. Calipers are commonly used in architecture, metalworking, mechanical engineering, and machining. The simplest calipers have two legs to mark the two points and require a ruler to take the measurement. More complex calipers use two sets of jaws instead of legs and have up to two graduated scales. Vernier, dial, and digital calipers give direct and accurate readings and are functionally identical, having a calibrated scale with a fixed jaw, and another jaw with a movable pointer that slides along the scale. The vernier caliper has a scale sliding parallel to the main scale for an additional, fractional reading to improve measurement precision. The dial caliper has a circular dial with a pointer on a toothed gear rack replacing the second vernier scale. As with the vernier, this second measurement is added to the reading from the main scale to obtain the result. The digital caliper takes a differential by zeroing the display at any point along the slide, with an LCD that displays a single value in English and/or metric units.
Brown & Sharpe manufactures precision measuring equipment and metrology hand tools. The company, founded in 1833, played a key role in setting industrial standards in the United States. Brown & Sharpe was acquired by Hexagon Metrology in 2001 and is headquartered in North Kingstown, RI.