. . . . . . . . . . . "SDN:L22::TOOL0043" . . . . "accepted"@en . "A self-contained unit comprising pressure, temperature and conductivity sensors, an optional dissolved oxygen sensor, a fluorometer and a data logger. The unit could be used in a variety of modes including vertical profiling, towed undulator and short-term moorings."@en . "CTG Aqualog CTD" . "CTG Aqualog CTD"@en . . . "Chelsea Technologies Group Aqualog CTD"@en . . . . . . . .