The documentation for the SBE 19plus V2 SeaCAT Profiler CTD is available at:
https://www.seabird.com/profiling/sbe-19plus-v2-seacat-profiler-ctd/family-downloads?productCategoryId=54627473770

The documentation for the SBE 43 Dissolved Oxygen Sensor is available at:
https://www.seabird.com/oxygen-sensors/sbe-43-dissolved-oxygen-sensor/family-downloads?productCategoryId=54627869932