A mass detector. (TV: Warriors' Gate) Mass detectors could be used to detect and find substance in areas with no co-ordinates. It could provide printouts of results. Rorvik's crew used one to find an unidentified craft. (TV: Warriors' Gate) Retrieved from "https://tardis.fandom.com/wiki/Mass_detector?oldid=2033041" Categories: Technology Locators + cat Cancel Save Community content is available under CC-BY-SA unless otherwise noted.