The Minuteman ELT Series of semi- and fully automatic systems for Knoop, Vickers and Rockwell hardness testing is available in four different versions. The entry level ELT1, the intermediate ELT2 and the fully automatic ELT3 are options for the Tukon microindentation testers, while the ELT4 version is for Rockwell and MicroRockwell testers. When used on a microindentation tester, the Minuteman ELT series is an upgradeable system that allows the operator to start with a low-cost basic system and progress to a fully automatic version as their needs and budget change. All of the Minuteman ELT systems feature complete computer control of the tester for hands-off operations.