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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.
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 | 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) |
SBE 17plus V2 Searam Recorder & Auto Fire Module
Accuracy:
Resolution:
Sampling Rate:
Depth Rating: [6800 m, 7000 m, 10500 m]
SBE 4 Conductivity Sensor
Accuracy: 0.0003 S/m
Resolution: 0.00004 S/m at 24 samples/sec
Sampling Rate: 60 msec
Depth Rating: [6800 m, 10500 m]
SBE 18 pH Sensor
Accuracy: ± 0.1 pH
Resolution:
Sampling Rate: 1 sec
Depth Rating: [1200 m]
ECO-PAR™
Accuracy: Calibration accuracy: ±5% NIST traceable in air
Resolution: 14 bit
Sampling Rate: User-selectable to 8 Hz
Depth Rating: [300 m]
SUNA V2
Accuracy: Dependent on path length and concentration range
Resolution:
Sampling Rate: 1 Hz (1 sample/sec)
Depth Rating: [500 m, 100 m]
SBE 43 Dissolved Oxygen Sensor
Accuracy: ± 2% of saturation
Resolution:
Sampling Rate:
Depth Rating: [600 m, 7000 m]
SBE 5 Submersible Pump
Accuracy:
Resolution:
Sampling Rate:
Depth Rating: [600 m, 10500 m]
SBE 33 Carousel Deck Unit
Accuracy:
Resolution:
Sampling Rate:
Depth Rating:
SBE 911plus CTD
Accuracy: Conductivity: 0.0003 S/m; Temperature: 0.001 °C; Pressure: 0.015% of full scale range
Resolution: Conductivity: 0.00004 S/m; Temperature: 0.0002 °C; Pressure: 0.001% of full scale range
Sampling Rate: 24 Hz (24 samples/sec)
Depth Rating: [6800 m, 10500 m]
SBE 19plus V2 SeaCAT CTD
Accuracy: Conductivity
± 0.0005 S/m
Temperature
± 0.005 °C, Strain-gauge ± 0.1% of full scale range; Quartz ± 0.02% of full scale range
Resolution: 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
Sampling Rate: Profiling: 4 Hz (strain-gauge pressure) or 2 Hz (Quartz pressure)
Depth Rating: [600 m, 7000 m, 10500 m]
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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