HOBO Deep Ocean Temperature Logger (36000′)

HOBO Deep Ocean Temperature Logger

Manufacturer: onset
Part Number: U12-015-03
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NOTE:  3 week lead time


The HOBO U12 Deep Ocean Water Temperature Data Logger is a single-channel water temperature logger with 12-bit resolution that can record up to 43,000 measurements. With its robust titanium housing, this logger is designed to withstand ocean extremes of depth and temperature.


    Temperature, Water Temp


  • 11,000m depth rating (36,080 ft)
  • Extended temperature range:- -40 to 125C
  • Titanium housing for use in saltwater
  • Fast readout via direct USB interface
  • Compatible with HOBOware and HOBOware Pro software for logger setup, graphing and analysis

Measurement Range: -40° to 125°C (-40° to 257°F)
Accuracy: ±0.22°C at 25°C (±0.4°F at 77°F), see Plot A below
Resolution: 0.025°C at 25°C (0.045°F at 77°F), see Plot A below
Drift: 0.05°C/year + 0.1°C/1000 hrs above 100°C (0.09°F + 0.2°F/1000 hrs above 212°F
Response Time in Water: < 4 minutes, typical to 90%
Time Accuracy: ±2 minute per month at 25°C (77°F), see Plot B below
Operating Environment: Air, water, steam, 0 to 100% RH
Operating Temperature: Logging: -40° to 125°C (-40° to 257°F) Launch/Readout: 0° to 50°C (32° to 122°F), per USB specification
Battery Life: 3 years typical use, factory replaceable
Memory 64K bytes (43,000 12-bit measurements)
Construction Titanium with O-ring seals and backup rings
Weight 105 g (3.7 oz)
Size: 114 x 20.6 mm diameter (4.5 x 0.81 in. diameter)
Depth Rating: 11,000 m (36,080 ft)
Pressure Rating: 1110 bar (16,000 psi)
Vibration Rating: Navy spec: NAVMAT P-9492
NIST Certificate: Available for additional charge; temperature range -30° to 120°C (-22° to 248°F)
CE The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).