SBE 37-SMP-ODO MicroCAT CT(D)-DOClick to zoom

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Observatory reference: E2-M3A[2013-****], DYFAMED[2009-****]

The SBE 37-SMP-ODO pumped MicroCAT is a high-accuracy conductivity and temperature (pressure optional) recorder with Serial interface (RS-232 or RS-485), internal batteries, Memory, integral Pump, and Optical Dissolved Oxygen. The MicroCAT is designed for moorings or other long-duration, fixed-site deployments.

Note: Now available as a component of the SeapHOxTM, integrated with a Satlantic SeaFET pH sensor to provide moored CTD + DO + pH to 50 m depth.

Data is recorded in memory and can be output in real-time. Measured data and derived variables (salinity, sound velocity, specific conductivity) are output in engineering units.

Memory capacity exceeds 380,000 samples. Battery endurance varies, depending on sampling scheme and deployment temperature and pressure. Sampling every 15 minutes (10 °C, 500 dbar), the MicroCAT can be deployed for almost 9 months (25,000 samples).


Sea-Bird Electronics, Inc.
Sea-Bird Electronics, Inc.

1808 136th Place NE
98005 Washington Bellevue

(+1) 425-643-9866

(+1) 425-643-9954

Technical specifications

Depth rangePlastic: 350 m, Titanium: 7000 m
Max. pressure7000 m
Housing materialPlastic or Titanium
Power supplyInternal and External battery (7.8 Amp-hour battery pack, 257 KJoules)
Power consumption25,000 samples CTD-DO
WeightPlastic: 3.4 kg air, 1.5 kg water; Titanium: 4.2 kg air, 2.3 kg water
Size103x138.9x607.3 mm
Memory8 Mb (380,000 samples CTD-DO)
Sampling rates10 sec to 6 hour intervals, 2.4 - 3.2 sec/sample
CommunicationsRS232, RS485 or SDI12
Download speed-
Conductivity range0 to 7 S/m
Conductivity accuracy± 0.0003 S/m
Temperature range-5 to 45 °C
Temperature accuracy± 0.002 °C
Depth accuracy-

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