Dec 3, 2016
Simple Comparison of Vernier Caliper Vs Ruler
The Vernier caliper is used in length measurements to gain an additional digit or more of accuracy when compared to a simple ruler. And more than just replacing rulers, they allow for accurate linear measurements (within the rated limits of the device) of distances that would be difficult or impossible to get with a hand held ruler. http://www.sptools.co.in/precision-measuring-instruments.html
