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Onset HOBO U12-015-03 Deep Water and Ocean Data Logger

U12 Deep Ocean Temperature Data Logger

Onset HOBO Titanium Data Logger Withstands Ocean Temperature and Depth Extremes

Part Number: U12-015-03

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  • -40°C to 125°C Temperature Measurement Range and ±0.22°C Accuracy

  • Stores up to 43,000 Measured Samples/Readings

  • Factory Replaceable Battery with 3 Year Life

  • Titanium Housing for Saltwater Use and NATMAT P-9492 Vibration Rating

  • 11,000 Meter (36,080 ft) Depth Rating

Requires Type A to Mini B Standard USB Cable (CABLE-USB), HOBOware (Free Download Version) or HOBOware Pro (Paid Download Version) Software.

Special order - please allow 3-5 business days for this item to ship.


All Calibration Orders Have a 5 to 7 Business Day Lead Time
1 Year Calibration Due Date Unless Otherwise Specified


Onset HOBO® U12-015-03 Deep Ocean Data Logger Specifications

Data Storage Capacity 43,000 12-bit Samples/Readings
Sampling Rate 1 Second to 18 Hours (User-Selectable via Software)
Measurement Range -40°C to 125°C (-40°F to 257°F)
Accuracy ±0.22°C @ 25°C (±0.045°F @ 77°F)
Resolution 0.025°C @ 25°C (0.045°F @ 77°F)
Drift 0.05°C/Yr + 0.1°C/1000 Hrs > 100°C (0.09°F + 0.2°F/1000 Hrs > 212°F)
Response Time < 4 Minutes, Typical to 90% (In Water)
Time Accuracy ±2 Minute per Month at 25°C (77°F)
Operating Environment Air, Water, Steam, 0 to 100% RH
Operating Temperature Logging: -40°C to 125 °C (-40°F to 257°F)
Launch/Readout: 0°C to 50°C (32°F to 122°F)
Battery Life 3 Year Typical Use, Factory Replaceable
Software Compatibility HOBOware and HOBOware PRO Version 3.2+
OS Compatibility Windows: Windows 10, 8.1, 8 and 7
Mac: OS X 10.9.x, 10.10.x and 10.11.x
Standards Compliance CE
Depth Rating 11,000 Meters (36,080 ft)
Vibration Rating Navy Spec: NAVMAT P-9492
Construction Titanium with O-Ring Seals and Backup Rings
Weight 105 g (3.7 oz)
Dimensions 114mm x 20.6mm (4.5" x 0.81")

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