The Thomas traceable digital caliper has an accuracy and measurement resolution of 0.01 inches, is made of carbon fiber, and has a 1/3” high digital display for readability. Linear accuracy is traceable to National Institute of Standards and Technology (NIST) standards. The caliper includes a certificate of calibration accredited by the American Association for Laboratory Accreditation (A2LA) as meeting International Organization for Standardization (ISO) 17025. Traceable digital calipers are commonly used for measuring the outside dimension (OD) of stoppers, the inside dimension (ID) of tubing, and the depth of vials. Carbon-fiber-reinforced polymer, also called carbon fiber, has a high strength-to-weight ratio and high rigidity. The carbon fiber slide bar eliminates the need for lubrication, which helps reduce maintenance. Carbon fiber is also non-conductive, allowing the carbon fiber calipers to be used with electrically charged or sensitive materials. 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. Thomas Scientific manufactures and distributes scientific equipment and supplies. Founded in 1900, the company is headquartered in Swedesboro, New Jersey. What’s in the Box? Digital carbon fiber caliper Certificate of traceability to NIST standards
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