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Onset
Water Temp TidbiT v2 Data Logger
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Water Temp TidbiT v2 Data Logger
EUCA Head Office
Clearwater Office Park
Parkhaven, Block H Ground Floor
Boksburg
Gauteng
1459
South Africa
Only 3x4 cm, this tiny data logger measures temperatures over a wide range, providing 12-bit resolution and ±0.2 °C accuracy. Designed for outdoor and underwater environments, this logger is waterproof to 300 m (1000 ft). An optical USB interface lets you offload data in seconds.
Please note: A solar radiation shield is required to obtain accurate air temperature measurements in sunlight (assembly-required RS1 Solar Radiation Shield or pre-assembled M-RSA Solar Radiation Shield).
![Diagram showing how an optical interface is used for retrieving data.](https://www.onsetcomp.com/sites/default/files/2022-10/HOBO-tidbit-Loggers.jpg)
Documentation
Quick StartUser Manual
Highlighted Features
- Onset's smallest temperature data logger
- Waterproof to 300 meters (1,000 feet)
- Data readout in less than 30 seconds via a fast Optic USB interface
Specifications
Temperature Sensor:
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Operation Range:
- -20°C to 70°C in air
- -4°F to 158°F in air
- Maximum sustained temperature of 30°C (86°F) in water*
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Accuracy:
- ±0.21°C from 0°C to 50°C, see manual for plot
- ±0.38°F from 32°F to 122°F, see manual for plot
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Resolution:
- 0.02°C at 25°C, see manual for plot
- 0.04°F at 77°F, see manual for plot
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Response Time:
- 5 minutes in water
- 12 minutes in air moving 2 m/sec
- 20 minutes in air moving 1 m/sec (typical to 90%)
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Stability (Drift):
- 0.1°C per year
- 0.18°F per year
Logger:
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Real-time Clock: ±1 minute per month at 0°C to 50°C (32°F to 122°F)
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Battery: 3 Volt lithium, non-replaceable
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Battery Life (Typical Use): 5 years with 1 minute or greater logging interval
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Memory (Non-volatile): 64K bytes memory (approx. 42,000 12-bit temperature measurements)
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Weight: 19.6 g / 0.69 oz
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Dimensions: 3.0 × 4.1 × 1.7 cm (1.2 × 1.6 × 0.68 in.); mounting bail 4.6 mm (3/16 in.) diameter hole
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Wetted Materials: Epoxy case
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Waterproof: Up to 305 m (1000 ft.)
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Logging Interval: Fixed-rate or multiple logging intervals, with up to 8 user-defined logging intervals and durations; logging intervals from 1 second to 18 hours. Refer to HOBOware software manual.
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Launch Modes: Immediate start, delayed start, triggered start
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Offload Modes: Offload while logging; stop and offload
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Battery Indication: Battery level can be viewed in the status screen and optionally logged in the data file. Low battery indication in the data file.
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Environmental Rating: IP68
Applications
In what environment does this data logger operate?
This data logger operates in outdoor and underwater environments.
What measurements does this data logger support?
The UTBI-001 data logger supports the following measurements: Temperature and Water Temperature