Good diagnostic tools are the base of a proper diagnosis and as a result of good treatment. The examination of disorders of the spinal cord or peripheral nerves requires a simple tests. These tests are called Quantitative Sensory Tests. To perform these tests typically a not very accurate tools are used. This inconvenience was the basis for the development of new diagnostic tools to perform the QST. This paper presents the requirements that must be met by the utility. Is also presented a complete description of the device and a description of the control algorithms.