For complete workflow compatibility, we recommend downloading the source format.The viewer version is intended only for use in the web viewer. In the Original format, the following are fully preserved:✔ native scene structure✔ unsimplified materials✔ proper texture maps✔ correct object namesIf you plan to use this model in production, download the original version.Digital caliper also known as electronic caliper for a measuring tool used to measure length longitude average and depth. This is a new version of the caliper software that uses electronic software to read the results instead of a scale.