Onset HOBO U12 Deep Ocean Temperature Logger
Features
- 11,000m depth rating (36,080 ft)
- Extended temperature range:- -40 to 125C
- Titanium housing for use in saltwater
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
| 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 in manual |
| Resolution: | 0.025°C at 25°C (0.045°F at 77°F), see Plot A in manual |
| 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 in manual |
| 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) |
| NIST Certificate: | Available for additional charge; temperature range -30° to 120°C (-22° to 248°F) |
| Environmental Rating: | IP68 |
- HOBO Deep Ocean Temperature Logger
- O-Ring replacement kit: four blue O-Rings, four orange backup rings, and silicone-based O-Ring lube
Select Options
In The News
Applied Research and Innovative Solutions: Creating CHNGES at Western Kentucky University
Long-standing environmental monitoring programs have the power to support a large number of research initiatives and policy changes—however, actually starting these networks can prove challenging. Not only is starting the program difficult, but keeping things operational for decades to come has also been challenging for environmental professionals hoping to make an impact with applied research. Jason Polk, Professor of Environmental Geoscience and Director of the Center for Human GeoEnvironmental Studies (CHNGES) at Western Kentucky University, is all too familiar with this process.
Read More
Combating Water Insecurity in Saskatchewan with Real-Time Data
The prairies of Saskatchewan can be described as one of the least water-secure parts of Canada, making water quality monitoring essential for informed resource management in a region already facing water insecurity. While natural physical properties worsen some of the poor water quality conditions in the region, others are connected to land use. Having grown up spending summers on the shores of Lake Huron, Helen Baulch, an associate professor at the School of Environment and Sustainability at the University of Saskatchewan , has always been dedicated to the protection of water resources. Looking back fondly at her childhood playing along the shore, Baulch also recalls the invasion of quagga mussels during her teenage years and watching the lake change as a result.
Read More
Seametrics Turbo Turbidity Logger: Boost your Turbidity Monitoring
The Seametrics Turbo Turbidity Logger is a self-cleaning turbidity sensor capable of internally logging over 260,000 data records. The sensor enables researchers, compliance officers, and contractors to monitor turbidity in various applications, from construction and dredging sites to wastewater effluent. Due to its narrow width, this device can be deployed in a range of areas, from small well spaces to rivers and streams. The stainless steel housing and built-in wiper allow the sensor to withstand long-term deployments and reduce the need for maintenance trips. The logger accurately records temperature and turbidity up to a depth of 50 meters.
Read More
