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Onset Announces Multichannel Thermocouple Data Logger

Onset, a world leader in data loggers, today announced the HOBO UX120 Thermocouple Logger, a four-channel LCD data logger for measuring and recording temperature in a broad range of monitoring applications.

Starting at just $275, 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.

Flexible Measurement Capabilities

The new 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. This flexibility enables the logger to be used in a range of monitoring projects. For example, food quality assurance managers will use the four-channel thermocouple loggers to profile oven temperatures at various points to ensure product quality. Civil engineers will use the loggers to document concrete temperatures at multiple depths during the curing process. And, research scientists will use the loggers in a range of projects, from wildfire ecology research to bird nesting studies.

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.

Fast, easy deployment

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 deviation statistics. 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 1.9 million 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.

Powerful software

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.

Pricing and Availability

The HOBO UX120 Thermocouple Logger is available immediately from Onset and is priced at $275.  Please visit for complete pricing details and technical specifications, or sign up for a free live webinar to learn more.


Onset is a leading supplier of data loggers. The company’s HOBO data logger and weather station products are used around the world in a broad range of applications, including building energy performance monitoring, water resources management, and ecological and agricultural research.  Based on Cape Cod, Massachusetts, Onset has sold more than 2 million data loggers since the company’s founding in 1981. Visit Onset on the web at

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