Bio-scanner

A bio-scanner was technology used to detect and scan biological entities. Bio-scanners were found in devices such as tricorders as well as starships themselves.

Earth Star Fleet ships were equipped with bio-scanners since at least the mid-22nd century, though the technology was not perfect. In 2152, the bio-scanners aboard the Enterprise NX-01 failed to detect a lymphatic virus brought on board along with canisters of deuterium.

24th century Star Fleet tricorders were equipped with bio-scanners.