Thermocouple Data Logger


Onset announces the HOBO UX120 Thermocouple Logger, a four-channel LCD data logger for measuring and recording temperature in a broad range of monitoring applications. The compact HOBO UX120 Thermocouple Logger offers a dramatic price/performance advantage over competitive products by combining a full-featured, deployment-friendly LCD display and flexible support for a variety of plug-in thermocouple probes.

The new logger makes it easy and convenient to record temperatures over a broad range (-260⁰ to 1820⁰ C) and can accept up to four J, K, T, E, R,S, B, or N type probes. This flexibility enables the logger to be used ina range of monitoring projects. 

In addition to accepting four thermocouple sensors, the logger features an internal temperature sensor for logging ambient temperatures, further extending the range of application possibilities. The HOBO UX120 Thermocouple Logger streamlines temperature monitoring applications in a number of ways. For example, it features an easy-to-view LCD that visually confirms logger operation and battery status, eliminating the need to connect the logger to a computer to view the information. As the logger records temperatures, the LCD refreshes every 15 seconds to provide a near real-time readout of current temperatures as well as minimum, maximum, average, and standard deviationstatistics. On-screen alarms can be set for each temperature channel to notify users if temperatures exceed high or low thresholds.

The logger also features a large memory capacity capable of storing 1.9million measurements. This enables the loggers to be deployed for longer periods between offloads.  Firmware is user upgradeable, and the logger offers start, stop, and restart pushbuttons to make installation fast and easy. Once data has been recorded with the HOBO UX120 Thermocouple Logger, it can be easily viewed in graph form and analyzed using Onset’s HOBOware®Pro software. Time-saving tools allow users to batch-configure and readout dozens of loggers in a fraction of the time it would take with previous generations. The software also features a Bulk Export tool that allows users to export data files to text format for use in spreadsheets.


  • LCD display
  • variety of plug-in thermocouple probes
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