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The HOBO UX120 Thermocouple Data Logger is a four-channel LCD data logger for measuring and recording temperature in a broad range of monitoring applications. The data logger makes it easy and convenient to record temperatures over a broad range (-260 to 1820° C) and can accept up to four J, K, T, E, R, S, B, or N type probes. In addition to accepting four thermocouple probes, the data logger features an internal temperature sensor for logging ambient temperatures, further extending the range of application possibilities.
Thermocouple
| Type | Range | Accuracy | Resolution |
| J | -210° to 760°C (-346° to 1,400°F) | ±0.6°C (±1.08°F) ± thermocouple probe accuracy | 0.03°C (0.06°F) |
| K | -260° to 1,370°C (-436° to 2,498°F) | ±0.7°C (±1.26°F) ± thermocouple probe accuracy | 0.04°C (0.07°F) |
| T | -260° to 400°C (-436° to 752°F) | ±0.6°C (±1.08°F) ± thermocouple probe accuracy | 0.02°C (0.03°F) |
| E | -260° to 950°C (-436° to 1,742°F) | ±0.6°C (±1.08°F) ± thermocouple probe accuracy | 0.03°C at (0.05°F) |
| R | -50° to 1,550°C (-58° to 2,822°F) | ±2.2°C (±3.96°F) ± thermocouple probe accuracy | 0.08°C (0.15°F) |
| S | -50° to 1,720°C (-58° to 3,128°F) | ±2.2°C (±3.96°F) ± thermocouple probe accuracy | 0.08°C (0.15°F) |
| B | 550° to 1,820°C (1,022° to 3,308°F) | ±2.5°C (±4.5°F) ± thermocouple probe accuracy | 0.1°C (0.18F) |
| N | -260° to 1,300°C (-436° to 2,372°F) | ±1.0°C (±1.8°F) ± thermocouple probe accuracy | 0.06°C (0.11°F) |
Internal 10K Thermistor (Temperature):
Range: Logging: -20° to 70°C (-4° to 158°F)
Acuracy: ±0.21°C from 0° to 50°C (±0.38°F from 32° to 122°F), see Plot A
Resolution: 0.024°C at 25°C (0.04°F at 77°F); see Plot A
Drift: <0.1°C (0.18°F) per year
Logger
Logger Operating Range:
Logging: -20° to 70°C (-4° to 158°F); 0 to 95% RH (non-condensing); logger accuracy from 0° to 50°C (32° to 122°F)
Launch/Readout: 0° to 50°C (32° to 122°F) per USB specification
Logging Rate: 1 second to 18 hours, 12 minutes, 15 seconds
Logging Modes: Normal, Burst or Statistics
Memory Modes: Wrap when Full or Stop when Full
Start Modes: Immediately, Push Button, Date & Time or Next Interval
Stop Modes: When Memory Full, Push Button, or Date & Time
Restart Mode: Push Button
Time Accuracy: ±1 minute per month at 25°C (77°F), see Plot B
Battery Life: 1 year, typical with logging rate of 1 minute and sampling interval of 15 seconds or greater
Battery Type: Two AAA 1.5V alkaline batteries, user replaceable
Memory: 4 MB (1.6 million measurements, maximum)
Download Type: USB 2.0 interface
Full Memory Download Time: Approximately 1.5 minutes
LCD: LCD is visible from: 0° to 50°C (32° to 122°F); the LCD may react slowly or go blank in temperatures outside this range
Size: 10.8 x 5.41 x 2.54 cm (4.25 x 2.13 x 1 in.)
Weight: 107.5 g (3.79 oz)
Environmental Rating: IP50
- The CE Marking identifies this product as complying with all relevant directives in the European Union (EU)
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