Medical DITI is a monitor of thermal abnormalities present in a number of diseases and physical injuries. It is used as an aid for diagnosis and prognosis, as well as therapy follow up and rehabilitation monitoring, within clinical fields that include Rheumatology, neurology, physiotherapy, sports medicine, oncology, pediatrics, orthopedics and many others.
The Very Rev. William Weldon Champneys was an Anglican priest and author in the 19th century.
Abney clinometers are available from surveying supply houses for considerably more money, over $100. Captain William Abney was at the School of Engineering at Chatham, England in the 19th century, and invented many ingenious surveying instruments.