4 Channel Concrete Temperature Datalogger

4 Channel Concrete Temperature Datalogger

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The HOBO UX120 Thermocouple Logger is a four-channel LCD data logger for measuring and recording temperature in a range of monitoring applications.

The 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 logger features an internal temperature sensor for logging ambient temperatures, further extending the application possibilities.


Key Advantages:

  • Easy-to-view LCD display confirms logger operation and battery status
  • Near real-time readout of current temperatures as well as minimum, maximum, average, and standard deviation statistics
  • On-screen alarms notify you if temperatures exceed high or low thresholds
  • Large memory capacity capable of storing 1.6 million measurements
  • Start, stop, and restart push buttons
  • User-upgradeable firmware
Internal Temperature
Range-20° to 70°C (-4° to 158°F)
Accuracy±0.21°C from 0° to 50°C (±0.38°F from 32° to 122°F)
Resolution0.024°C at 25°C (0.04°F at 77°F)
Drift<0.1°C (0.18°F) per year
Logging Rate1 second to 18 hours
Logging ModesNormal, Burst, Statistics
Memory ModesWrap when full or stop when full
Time Accuracy±1 minute per month at 25°C (77°F)
Battery Life1 year typical with logging rate of 1 minute and sampling interval of 15 seconds or greater, user replaceable, 2 AAA
Dimensions10.8 x 5.41 x 2.54 cm (4.25 x 2.13 x 1 in.)
Operating Range Logging-20° to 70°C (-4° to 158°F); 0 to 95% RH (non-condensing)
CE CompliantYes
(probes sold separately)
Type J-210° to 760°C (-346° to 1,400°F)±0.6°C (±1.08°F) ± thermocouple probe accuracy0.03°C (0.06°F)
Type K-260° to 1,370°C (-436° to 2,498°F)±0.7°C (±1.26°F) ± thermocouple probe accuracy0.04°C (0.07°F)
Type T-260° to 400°C (-436° to 752°F)±0.6°C (±1.08°F) ± thermocouple probe accuracy0.02°C (0.03°F)
Type E-260° to 950°C (-436° to 1,742°F)±0.6°C (±1.08°F) ± thermocouple probe accuracy0.03°C at (0.05°F)
Type R-50° to 1,550°C (-58° to 2,822°F)±2.2°C (±3.96°F) ± thermocouple probe accuracy0.08°C (0.15°F)
Type S-50° to 1,720°C (-58° to 3,128°F)±2.2°C (±3.96°F) ± thermocouple probe accuracy0.08°C (0.15°F)
Type B+60° to 1,820°C (1,022° to 3,308°F)±2.5°C (±4.5°F) ± thermocouple probe accuracy0.1°C (0.18F)
Type N-260° to 1,300°C (-436° to 2,372°F)±1.0°C (±1.8°F) ± thermocouple probe accuracy0.06°C (0.11°F)