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Onset Manuals & User Guides

Onset is a global leader in data logger and monitoring solutions, best known for its HOBO and InTemp product lines used in environmental and cold chain monitoring.

Tip: include the full model number printed on your Onset label for the best match.

About Onset manuals on Manuals.plus

Onset Computer Corporation is a market leader in the design and manufacture of data loggers and monitoring controllers. Based in Bourne, Massachusetts, Onset provides the widely used HOBO® and InTemp® data logger families, which are essential tools for a broad range of applications including building performance monitoring, renewable energy, agricultural research, and water quality management.

Their products are designed to reliably measure and record parameters such as temperature, humidity, light, energy, and soil moisture in both indoor and outdoor environments, helping professionals make data-driven decisions.

Onset manuals

Latest manuals from manuals+ curated for this brand.

InTemp CX5500 Cellular IoT Gateway Owner’s Manual

February 21, 2025
InTemp CX5500 Cellular IoT Gateway Product Usage Instructions InTemp Cellular IoT Gateway Bluetooth connection to data loggers for cold chain cloud automation services The CX5500 Gateway automatically downloads data from…

InTemp CX5500 Cellular Gateway User Guide

February 6, 2025
CX5500 Cellular Gateway Specifications Transmission Range: Approximately 30.5 m (100 ft) line-of-sight Wireless Data Standard: Bluetooth 4.2 (Bluetooth Low Energy) Connectivity: Cellular Cat 1 LTE with 2G/3G fallback Power Source:…

InTemp CX5000 Gateway Instruction Manual

November 18, 2024
InTemp® CX5000/CX5001 Gateway Manual CX5000 Gateway The InTemp CX5000/CX5001 Gateway uses Bluetooth® Low Energy (BLE) to regularly configure and download data from up to 50 CX series loggers and upload…

InTemp CX5001 Onset’s HOBO And Data Loggers User Guide

June 13, 2024
InTemp CX5001 Onset's HOBO And Data Loggers Product Information Specifications Model: CX5001 Gateway Connectivity: Wi-Fi, Ethernet Power: AC adapter LED Indicator: Yellow (powering up), Flashing yellow (ready), Green (connected) Product…

InTemp CX600 Dry Ice/CX700 Cryogenic Logger User Manual

July 14, 2023
InTemp CX600 Dry Ice/CX700 Cryogenic Logger  InTemp CX600/CX700 and Series Loggers Models: CX602, 90-day logger, single use CX603, 365-day logger, multiple use CX702, 90-day logger, single use CX703, 365-day logger,…

InTemp CX1000 Series Temperature Logger User Manual

July 2, 2023
InTemp CX1000 Series Temperature Logger INSTRUCTION The InTemp CX1002 (single use) and CX1003 (multi use) are cellular data loggers that monitor the location and temperature of your critical, sensitive, in-transit…

InTemp CX450 Temp RH Logger Instruction Manual

June 30, 2023
InTemp CX450 Temp RH Logger Product Information The InTemp CX450 Temp/RH Logger is a temperature and humidity data logger designed for monitoring and recording environmental conditions. It is equipped with…

Onset manuals from online retailers

Onset HOBO UX100-003 Humidity Data Logger User Manual

UX100-003 • September 11, 2025
Comprehensive user manual for the Onset HOBO UX100-003 Humidity Data Logger, covering setup, operation, maintenance, troubleshooting, and detailed specifications for accurate temperature and humidity monitoring.

HOBO U20L-04 Water Level Data Logger User Manual

U20L-04 • July 14, 2025
Comprehensive user manual for the Onset HOBO U20L-04 Water Level Data Logger. Includes setup, operation, maintenance, troubleshooting, and specifications for accurate water level monitoring.

Onset video guides

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Onset support FAQ

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  • How do I connect to my HOBO MX series logger?

    Download the HOBOconnect app (formerly HOBOmobile) on your iOS or Android device. Enable Bluetooth, ensure the logger is awake (press the button if needed), and tap the logger in the app's 'In Range' list to connect.

  • What requires the HOBOware software?

    HOBOware is generally required for launching and reading out data from Onset's USB-based data loggers. The software is available for download on the Onset website.

  • How do I change the batteries in my HOBO data logger?

    For most pendant or compact loggers, open the battery compartment (often by unscrewing an end cap or removing a back plate), remove the old batteries, and insert new ones observing the polarity. Ensure o-rings are free of debris before resealing to maintain water resistance.

  • How do I reset the password on a HOBO MX logger?

    On compatible MX loggers, press both the Start/Stop button and the Alarm/Stats button simultaneously for 3 seconds to reset the password.

  • Can Onset loggers be used underwater?

    Many HOBO loggers, such as the U20 Water Level or Pendant series, are waterproof and designed for underwater deployment. However, models like the MX1101 are for indoor use only. Always check the environmental rating (IP rating) in your manual.