Histroy of calipers

With the rapid development of economy, to meet the new demands of the customers, a new generation of electronic instruments has been produced due to gaging is a vital part of SPC, . These instruments have liquid crystal displays(LCD) and are capable of interfacing with a data collection device. Both inch and metric units are combined in one tool. However, the electronic feature is available on calipers, height gages, and depth gages.