The UCI method can be used to measure the hardness of metal products of almost any shape, mass or thickness. The repeatability of results is also less influenced by the operator and measurement technique. It is easy to use with increased accuracy. It is housed in ergonomic stainless steel which has a special protective cap for the indenter and a replaceable cable that connects via a Lemo type connector. It can also be paired with a special nozzle for working with products of various shapes.