UX120 4-Channel Thermocouple Data Logger - eucatech Store
UX120 4-Channel Thermocouple Data Logger - eucatech Store


UX120 4-Channel Thermocouple Data Logger

Sale priceR 9,605.12
SKU: UX120-014M


Thermocouple Type:Type T (-260°C - 400°C)

A four-channel thermocouple LCD display data logger to measure and record temperature in a broad range of monitoring applications.

Records temperatures from -260 to 1820⁰ C and accepts up to four J, K, T, E, R, S, B, or N-type probes. This logger also features an internal temperature sensor for logging ambient temperatures, further extending the range of application possibilities.

Onset also offers a four-channel thermocouple data logger, the HOBO UX120-014M.


Data Sheet
User Manual


Highlighted Features

  • 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 pushbuttons
  • User-upgradeable firmware
  • The optional protective case enables logger use in outdoor environments
  • Compatible with HOBOware and HOBOware Pro software for logger setup and graphing & analysis



Type Range Accuracy Resolution
J -210°C to 760°C ±0.6°C (±1.08°F) ± probe 0.03°C (0.06°F)
K -260°C to 1,370°C ±0.7°C (±1.26°F) ± probe 0.04°C (0.07°F)
T -260°C to 400°C ±0.6°C (±1.08°F) ± probe 0.02°C (0.03°F)
E -260°C to 950°C ±0.6°C (±1.08°F) ± probe 0.03°C (0.05°F)
R -50°C to 1,550°C ±2.2°C (±3.96°F) ± probe 0.08°C (0.15°F)
S -50°C to 1,720°C ±2.2°C (±3.96°F) ± probe 0.08°C (0.15°F)
B 550°C to 1,820°C ±2.5°C (±4.5°F) ± probe 0.1°C (0.18°F)
N -260°C to 1,300°C ±1.0°C (±1.8°F) ± probe 0.06°C (0.11°F)


Internal 10K Thermistor (Temperature)

Plot A Time Accuracy

  • Range: Logging: -20°C to 70°C (-4°F to 158°F)
  • Accuracy: ±0.21°C from 0°C to 50°C (±0.38°F from 32°F 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 Operating Range:

    • Logging: -20°C to 70°C (-4°F to 158°F); 0 to 95% RH (non-condensing); logger accuracy from 0°C to 50°C (32°F to 122°F)
    • Launch/readout: 0°C to 50°C (32°F 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 - UX120-014M

  • Time Accuracy: ±1 minute per month at 25°C (77°F), see Plot B

  • Battery Life: 1 year, typically with a 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°C to 50°C (32°F 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.)

  • Environmental Rating: IP50


In what environment does this data logger operate?

This data logger operates in an indoor environment.

What measurements does this data logger support?

The UX120-014M data logger supports the following measurement: Temperature