Instrument: CTD Sea-Bird SBE 911plus
The Sea-Bird SBE 911 plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure. The SBE 911 plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 plus and SBE 11 plus is called a SBE 911 plus. The SBE 9 plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 plus and SBE 4). The SBE 9 plus CTD can be configured with up to eight auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). more information from Sea-Bird Electronics
SBE 911/917 plus CTD Pressure, Digiquartz with TC dual Temperature and Conductivity sensors Fluorometer, Wetlab ECO-AFL/FL PAR/Irradiance, Biospherical/Licor Transmissometer, Chelsea/Seatech/Wetlab CStar ISUS_NO3 Oxygen, SBE 43 SPAR/Surface Irradiance