The acronym “CTD” might unofficially represent more than just conductivity, temperature, and depth. Since most CTDs include one or more auxiliary sensors, a given CTD package might technically be called a “CTDpHDOFLNTUTr” (CTD + pH + dissolved oxygen + fluorescence +...
![CTDs as Data Loggers](https://blog.seabird.com/wp-content/uploads/2021/08/Datalogger-18-1080x675.png)