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 | 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...
Real-world deployments
Case Studies
Explore real-world deployments of Sea-Bird Scientific moored instruments. See how researchers achieve long-term, high-quality ocean data for climate, ecosystem, and coastal studies.
Case Study
10.01.25
Revealing the Complex Dynamics of Antarctic Ice Shelf Melting with Sea-Bird Scientific’s SBE 49 FastCAT CTD + PDIM
This highlight was developed in partnership with the British Antarctic Survey. Sea-Bird Scientific interviewed Peter Davis, Ph.D., co-PI of the MELT project as part of the International Thwaites Glacier Collaboration at the British Antarctic Survey.
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Technology Guide
10.01.25
Inductive Modem Telemetry
Ocean scientists, researchers, and offshore engineers
are leveraging inductive modem technology to enable
seamless, cable-free data transmission between
subsurface instruments and buoy systems—streamlining
deployment and enhancing long-term monitoring
capabilities.
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Technology Guide
10.01.25
Sensors for AUV-ROV & Autonomous Platforms
Autonomous and remotely operated underwater vehicles
are revolutionizing ocean science by accessing environments
beyond the reach of traditional research methods. These
platforms, equipped with high-precision sensors, enable realtime
data collection while dramatically reducing operational
costs.
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Contact our team
Ready to take the next step? Connect with Sea-Bird Scientific’s team for personalized guidance, support, or to request a quote for our solutions.