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Fixed sensors for long-term data
Moored Sensors and Systems
Moored instruments remain in fixed positions for extended deployments in oceans, lakes, and reservoirs. They deliver continuous observations that help track seasonal cycles, long-term environmental changes, and ecosystem health across diverse parameters.
Model Matrix
| Sensor | Accuracy | Resolution | Depth Rating | Sampling Rate |
|---|---|---|---|---|
| SBE 16plus V2 SeaCAT CTD | Conductivity ± 0.0005 S/m Temperature ± 0.005 °C Optional Pressure Strain-gauge ± 0.1% of full scale rang | Resolution Conductivity 0.00005 S/m typical Temperature 0.0001 °C Optional Pressure Strain-gauge 0.002% of full scale range; Quartz 0.0006% of full scale range for 1-sec integration | 600 m, 10500 m | 10-14 seconds From user manual |
| Deep SUNA Nitrate Sensor | ± 2 uM (±0.028 mg/l-N) or ± 10% of reading | 2000 m | 1 Hz (1 sample/sec) | |
| ECO-PAR™ | Calibration accuracy: ±5% NIST traceable in air | 14 bit | 300 m | User-selectable to 8 Hz |
| ac-s | ± 0.01 m-1 | 4 nm | 500 m, 5000 m | 4 scans/second |
| SBE 39plus Temperature Recorder | Temperature ± 0.002 °C (-5 to +35 °C); ± 0.01 °C (+35 to +45 °C) Optional Pressure ± 0.1% of full scale range | Temperature 0.0001 °C Optional Pressure 0.002% of full scale range | 600 m | Up to 2 Hz (2 samples/sec) |
| SBE 38 Digital Oceanographic Thermometer | ± 0.001 °C (1 mK) | 0.00025 °C (0.25 mK) | 10500 m | 500 msec |
| SBE 56 Temperature Logger | ± 0.002 °C (-5 to to 35 °C); ± 0.01 °C (35 °C to 45 °C) | 0.0001 °C | 1500 m | Up to 2 Hz (2 samples/sec) |
| SBE 63 Optical Dissolved Oxygen Sensor | Larger of ± 3 µmol/kg (equivalent to 0.07 ml/L or 0.1 mg/L) or ± 2% | 0.2 µmol/kg | 600 m, 7000 m | 1 Hz (1 sample/sec) |
| SUNA V2 | Dependent on path length and concentration range | 500 m, 100 m | 1 Hz (1 sample/sec) | |
| SeapHOx™ V2 Ocean pH Sensor | Conductivity ± 0.0003 S/m (0.003 mS/cm) Temperature ± 0.002 °C (-5 to to 35 °C); ± 0.01 °C (35 °C to 45 °C) Optional Pressure ± 0.1% of full scale range Dissolved Oxygen larger of ± 3 µmol/kg (0.07 ml/L, 0.1 mg/L) or ± 2% pH ± 0.05 pH | Conductivity 0.00001 S/m (0.0001 mS/cm) Temperature 0.0001 °C Optional Pressure 0.002% of full scale range Dissolved Oxygen 0.2 µmol/kg pH 0.004 pH | 50 m | 5 minutes to 24 hours |
SBE 16plus V2 SeaCAT CTD
Accuracy: Conductivity ± 0.0005 S/m Temperature ± 0.005 °C Optional Pressure Strain-gauge ± 0.1% of full scale rang
Resolution: Resolution Conductivity 0.00005 S/m typical Temperature 0.0001 °C Optional Pressure Strain-gauge 0.002% of full scale range; Quartz 0.0006% of full scale range for 1-sec integration
Sampling Rate: 10-14 seconds From user manual
Depth Rating: [600 m, 10500 m]
Deep SUNA Nitrate Sensor
Accuracy: ± 2 uM (±0.028 mg/l-N) or ± 10% of reading
Resolution:
Sampling Rate: 1 Hz (1 sample/sec)
Depth Rating: [2000 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]
ac-s
Accuracy: ± 0.01 m-1
Resolution: 4 nm
Sampling Rate: 4 scans/second
Depth Rating: [500 m, 5000 m]
SBE 39plus Temperature Recorder
Accuracy: Temperature ± 0.002 °C (-5 to +35 °C); ± 0.01 °C (+35 to +45 °C)
Optional Pressure ± 0.1% of full scale range
Resolution: Temperature 0.0001 °C
Optional Pressure 0.002% of full scale range
Sampling Rate: Up to 2 Hz (2 samples/sec)
Depth Rating: [600 m]
SBE 38 Digital Oceanographic Thermometer
Accuracy: ± 0.001 °C (1 mK)
Resolution: 0.00025 °C (0.25 mK)
Sampling Rate: 500 msec
Depth Rating: [10500 m]
SBE 56 Temperature Logger
Accuracy: ± 0.002 °C (-5 to to 35 °C); ± 0.01 °C (35 °C to 45 °C)
Resolution: 0.0001 °C
Sampling Rate: Up to 2 Hz (2 samples/sec)
Depth Rating: [1500 m]
SBE 63 Optical Dissolved Oxygen Sensor
Accuracy: Larger of ± 3 µmol/kg (equivalent to 0.07 ml/L or 0.1 mg/L) or ± 2%
Resolution: 0.2 µmol/kg
Sampling Rate: 1 Hz (1 sample/sec)
Depth Rating: [600 m, 7000 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]
SeapHOx™ V2 Ocean pH Sensor
Accuracy: Conductivity ± 0.0003 S/m (0.003 mS/cm)
Temperature ± 0.002 °C (-5 to to 35 °C);
± 0.01 °C (35 °C to 45 °C)
Optional Pressure ± 0.1% of full scale range
Dissolved Oxygen larger of ± 3 µmol/kg (0.07 ml/L, 0.1 mg/L)
or ± 2%
pH ± 0.05 pH
Resolution: Conductivity 0.00001 S/m (0.0001 mS/cm)
Temperature 0.0001 °C
Optional Pressure 0.002% of full scale range
Dissolved Oxygen 0.2 µmol/kg
pH 0.004 pH
Sampling Rate: 5 minutes to 24 hours
Depth Rating: [50 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 37 MicroCAT
The SBE 37 MicroCAT is a high-accuracy conductivity and temperature (pressure optional) recorder...
SBE 39plus Temperature Recorder
The SBE 39plus is a high-accuracy, fast-sampling temperature (pressure optional) recorder with USB...
Deep SeapHOx™ V2 pH Sensor
The Deep SeapHOx™ V2 combines the SeaFET™ V2 pH sensor with the SBE 37 MicroCAT CTD sensor. The...
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