Sea-Bird Scientific

Profiling

Sensors for water column profiles

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.

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SBE 19plus V2 profiling multiparameter CTD solution

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)

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: Not specified

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]

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

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SBE 911plus CTD

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SBE 25plus Sealogger CTD

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