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HOBO

HOBO is a product line of environmental and energy data loggers manufactured by Onset Computer Corporation, a company founded in 1981 and based in Bourne, Massachusetts. The HOBO brand is widely recognized in industrial, research, and building-performance applications for compact, self-contained logging instruments that record temperature, relative humidity, pressure, and other parameters over time. The line includes both standalone loggers and wireless models that communicate via Bluetooth or USB, with software support for configuration, data offload, and analysis. 3G Electric supplies HOBO data loggers globally, with 17 SKUs currently listed. The range covers temperature loggers such as the UX90-001, UX90-002, UX90-004, and UX90-006, which measure from -20°C to 70°C (-4°F to 158°F) and include features like auto-calibration of on/off thresholds and external inputs for mechanical contact closures. The U22-001 extends the low end to -40°C (-40°F) for research-grade measurements. Wireless models include the MX1101, which adds relative humidity measurement from 0% to 90%, and the MX100, both using Bluetooth communication and a Find Me Pager feature. The UX120-006M is a pressure and temperature logger that supports a wide range of external sensors via USB and operates on two AAA alkaline batteries. Common interface options across the line are USB and wireless, with mounting accessories such as Command Strips, hook-and-loop strips, and magnets included depending on the model. These loggers are used in applications where continuous, unattended monitoring is required: cold chain and storage, HVAC system diagnostics, building envelope studies, and equipment run-time tracking. The UX90 series, for example, can record motor or compressor on/off cycles through external contact inputs, while the MX series supports wireless data collection in hard-to-reach locations. 3G Electric maintains inventory of these SKUs and provides logistics support for international orders. Technical documentation, including software and specifications, is available for each model. For procurement and plant engineering teams, the HOBO line offers a practical balance of measurement range, interface flexibility, and form factor, with models suited to both short-term audits and long-term deployment.

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About HOBO

HOBO is a product line of environmental and energy data loggers manufactured by Onset Computer Corporation, a company founded in 1981 and based in Bourne, Massachusetts. The HOBO brand is widely recognized in industrial, research, and building-performance applications for compact, self-contained logging instruments that record temperature, relative humidity, pressure, and other parameters over time. The line includes both standalone loggers and wireless models that communicate via Bluetooth or USB, with software support for configuration, data offload, and analysis. 3G Electric supplies HOBO data loggers globally, with 17 SKUs currently listed. The range covers temperature loggers such as the UX90-001, UX90-002, UX90-004, and UX90-006, which measure from -20°C to 70°C (-4°F to 158°F) and include features like auto-calibration of on/off thresholds and external inputs for mechanical contact closures. The U22-001 extends the low end to -40°C (-40°F) for research-grade measurements. Wireless models include the MX1101, which adds relative humidity measurement from 0% to 90%, and the MX100, both using Bluetooth communication and a Find Me Pager feature. The UX120-006M is a pressure and temperature logger that supports a wide range of external sensors via USB and operates on two AAA alkaline batteries. Common interface options across the line are USB and wireless, with mounting accessories such as Command Strips, hook-and-loop strips, and magnets included depending on the model. These loggers are used in applications where continuous, unattended monitoring is required: cold chain and storage, HVAC system diagnostics, building envelope studies, and equipment run-time tracking. The UX90 series, for example, can record motor or compressor on/off cycles through external contact inputs, while the MX series supports wireless data collection in hard-to-reach locations. 3G Electric maintains inventory of these SKUs and provides logistics support for international orders. Technical documentation, including software and specifications, is available for each model. For procurement and plant engineering teams, the HOBO line offers a practical balance of measurement range, interface flexibility, and form factor, with models suited to both short-term audits and long-term deployment.

Common Applications

  • Cold chain and storage — HOBO UX90-002 temperature logger for monitoring refrigerated spaces within -20°C to 70°C.
  • HVAC system diagnostics — HOBO MX1101 wireless temperature and humidity logger for duct or room-level measurements.
  • Building envelope studies — HOBO U22-001 temperature logger with -40°C to 158°F range for exterior or interstitial monitoring.
  • Equipment run-time tracking — HOBO UX90-004 with external input for mechanical contact closures on motors or pumps.
  • Pressure monitoring — HOBO UX120-006M pressure and temperature logger with support for external sensors via USB.
  • Wireless temperature monitoring — HOBO MX100 Bluetooth logger with Find Me Pager for hard-to-reach locations.

Frequently asked questions

Common questions about HOBO from 3G Electric.

What is the temperature measurement range of the HOBO UX90 series data loggers?

The HOBO UX90 series includes several models with overlapping ranges. The UX90-001, UX90-002, and UX90-004 measure from -20°C to 70°C (-4°F to 158°F). The UX90-006 measures from -4°F to 140°F (20°C to 60°C). All models feature auto-calibration of on/off thresholds for reliable readings and use a USB interface for data offload. Mounting accessories vary: the UX90-001 includes a magnet with two screws, the UX90-002 and UX90-006 include Command Strips or hook-and-loop strips, and the UX90-004 includes a hook-and-loop strip. These loggers are typically used for temperature monitoring in industrial and commercial settings.

How does the HOBO MX1101 differ from other HOBO temperature loggers?

The HOBO MX1101 measures both temperature and relative humidity, while most other HOBO loggers in the 3G Electric catalog measure temperature only. Its temperature range is -4°F to 158°F (-20°C to 70°C), and humidity range is 0% to 90%. It uses Bluetooth communication for wireless setup and data download, and includes a Find Me Pager feature to help locate the logger. Mounting accessories include a Command Strip and hook-and-loop strip. The MX1101 is suited for applications where both temperature and humidity data are needed, such as storage areas or HVAC diagnostics.

What external sensors can the HOBO UX120-006M support?

The HOBO UX120-006M is a pressure and temperature data logger that measures DC current and supports a wide range of external sensors via its USB interface. It operates from -20°C to 70°C (-4°F to 158°F) and is powered by two AAA alkaline batteries (included). The logger is designed for flexibility, allowing users to connect sensors for pressure, current, or other parameters as needed. It is commonly used in building performance and industrial monitoring where multiple sensor types are required. Software is available separately for configuration and data analysis.

What software is required to configure and download data from HOBO loggers?

HOBO loggers typically require HOBOware software (or HOBOmobile for wireless models) to configure logging parameters, start and stop sessions, and offload data. Software is available separately for most models; for example, the UX90-001 and UX120-006M list software as a separate item. The MX1101 and MX100 use Bluetooth communication and are compatible with mobile apps for wireless setup and data retrieval. 3G Electric does not supply software directly, but technical documentation and compatibility details are available for each SKU. Users should verify software compatibility with their operating system before ordering.

What mounting options are available for HOBO data loggers?

Mounting accessories vary by model. The MX1101 and MX100 include a Command Strip and hook-and-loop strip. The UX90-001 includes a magnet with two screws. The UX90-002 includes a Command Strip. The UX90-004 and UX90-006 include a hook-and-loop strip. The U22-001 includes a communications window protective cap but no mounting accessory. These options allow loggers to be attached to walls, equipment, or other surfaces without additional hardware. For permanent installations, users may need to source additional mounting materials based on the specific environment and surface.

Can HOBO data loggers measure mechanical contact closures?

Yes, the HOBO UX90-004 includes an external input for measuring mechanical contact closures when signal strength is low. This allows the logger to record on/off events from equipment such as motors, pumps, or doors, in addition to temperature. The UX90-004 measures temperature from -20°C to 70°C (-4°F to 158°F) and relative humidity from 0% to 95%. It uses a USB interface for data offload and includes a hook-and-loop strip for mounting. This model is often used for run-time tracking and equipment diagnostics in industrial settings.