Sensors for water column profiles

Profiling Sensors and Systems

Profiling instruments capture vertical profiles in lakes, rivers, and oceans, providing insight into water column structure and dynamics. They support research on circulation, mixing, and ecosystem processes in both freshwater and marine environments.
SBE 19plus V2 profiling multiparameter CTD solution

Model Matrix

Sensor Accuracy Resolution Depth Rating Sampling Rate
SBE 17plus V2 Searam Recorder & Auto Fire Module 6800 m, 7000 m, 10500 m
SBE 4 Conductivity Sensor 0.0003 S/m 0.00004 S/m at 24 samples/sec 6800 m, 10500 m 60 msec
SBE 18 pH Sensor ± 0.1 pH 1200 m 1 sec
ECO-PAR™ Calibration accuracy: ±5% NIST traceable in air 14 bit 300 m User-selectable to 8 Hz
SUNA V2 Dependent on path length and concentration range Not specified 500 m, 100 m 1 Hz (1 sample/sec)
SBE 43 Dissolved Oxygen Sensor ± 2% of saturation 600 m, 7000 m
SBE 5 Submersible Pump 600 m, 10500 m
SBE 33 Carousel Deck Unit
SBE 911plus CTD Conductivity: 0.0003 S/m; Temperature: 0.001 °C; Pressure: 0.015% of full scale range Conductivity: 0.00004 S/m; Temperature: 0.0002 °C; Pressure: 0.001% of full scale range 6800 m, 10500 m 24 Hz (24 samples/sec)
SBE 19plus V2 SeaCAT CTD Conductivity ± 0.0005 S/m Temperature ± 0.005 °C, Strain-gauge ± 0.1% of full scale range; Quartz ± 0.02% of full scale range Conductivity 0.00005 S/m typical Temperature 0.0001 °C Pressure Strain-gauge 0.002% of full scale range; Quartz 0.0025% of full scale range 600 m, 7000 m, 10500 m Profiling: 4 Hz (strain-gauge pressure) or 2 Hz (Quartz pressure)

Our Solutions

Discover our most trusted oceanographic and freshwater instruments, designed for accuracy and durability. Explore top-performing models that meet diverse research and monitoring needs worldwide.
SBE 19plus V2 SeaCAT CTD
The SBE 19plus V2 SeaCAT measures conductivity, temperature, and pressure at 4 scans/sec (4 Hz) and...
SBE 911plus CTD
The SBE 911plus CTD is the primary oceanographic research tool used by the world’s leading...
SBE 25plus Sealogger CTD
The SBE 25plus Sealogger is the ideal research-quality CTD profiler for coastal, estuarine, and...
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