SBE 63 Optical Dissolved Oxygen

The SBE 63 is an individually calibrated, high-accuracy, optical oxygen sensor to assist in critical hypoxia and ocean stoichiometric oxygen chemistry research on a variety of moored and float-based platforms. Careful choices of materials and geometry are combined with superior electronics and calibration methodology to yield significant gains in performance.

The SBE 63 is designed for use in a CTD’s pumped flow path, providing optimal correlation with CTD measurements. The elapsed time between the CTD and associated oxygen measurement is easily quantified, and corrected for, in post-processing. The plumbing’s black tubing blocks light, reducing in-situ algal growth.


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 rating0-7000 m
Max. pressure
Housing material5000 m (plastic) or 7000 m (titanium)
Power supply6 - 24 VDC; 35 mA (0.08 J/sample)
Power consumption
Weight600 m Plastic housing: 245 g in air 7000 m Titanium housing: 270 g in air
Size600 m Plastic housing: 79 mm 7000 m Titanium housing: 70 mm
Accuracylarger of ±3 µmol/kg (equivalent to 0.07 ml/L or 0.1 mg/L) or ±2%
Response time(Tau, 63% response): < 6 sec (20 °C)
Resolution0.2 µmol/kg

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