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Multipurpose scientific and technical instrument. Developed for Star Fleet, the tricorder incorporated sensors, computers, and recorders in a convenient, portable form. All tricorders feature state-of-the-art sensing technology, and are essential to starship missions and operations. Standard issue tricorders cannot detect subspace phenomena or neutrino emissions. The presence of thoron particles can also interfere with a tricorder scan.
Medical tricorders can be used to determine a patient's bio signs, detect injuries, disease, and even make medical diagnosis.
Science tricorders can be used to identify life forms, artificial materials, natural and unnatural phenomena, chemicals, cell structures, and many other compositions.
Engineering tricorders can be used to scan various computer components, as well as diagnose malfunctions in engineering equipment and starship technology.