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.
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.
ONSET RG3 Data Logging Rain Gauge Owner’s Manual
ONSET MX800 Logger Housing Instruction Manual
ONSET MX802 Direct Read Logger User Guide
ONSET RXW-LIx-xxx Silicon Pyranometer Sensor User Guide
ONSET MX2306 TEROS Verification Clip User Manual
ONSET CX5000 InTemp Gateway Instruction Manual
ONSET HOBO U20 Series Water Level Loggers Owner’s Manual
ONSET HOBOware Temperature Relative Humidity Data Logger User Guide
ONSET MX2501 pH and Temperature Data Logger User Guide
RXW Repeater (RXW-RPTR-B-xxx) Quick Start
HOBO MX Water Level Logger (MX2001-0x) User Manual
InTemp CX 4-Channel Analog (CX460) Data Logger User Guide
RXW Multi-Depth Soil Moisture Sensor (RXW-GPxA-xxx) Manual
HOBO MX801 Logger Housing-2 User Guide
TEROS Verification Clip (TEROS-CLIP) Manual
HOBO RX3000 Channel Kit Installation Instructions
HOBOnet Water Level Sensor Interface User Guide
HOBO Temp/RH 3.5% Data Logger (UX100-003) User Manual
InTemp CX5000/CX5001 Gateway Manual
Quick Start Guide: HOBO U-Series Data Logger
InTemp CX405 RTD Dry Ice Logger: Cold Chain Monitoring & Data Logging Manual
Onset manuals from online retailers
Onset HOBO H21-USB Micro Station Data Logger User Manual
Onset HOBO UA-003-64 Pendant Event and Temperature Data Logger User Manual
Onset HOBO MX1101 Temperature/Relative Humidity Data Logger User Manual
Onset HOBO UX100-011A Temperature and Humidity Data Logger User Manual
Onset RXW-SMD-900 HOBOnet Wireless Soil Moisture 10HS Sensor User Manual
Onset HOBO UX100-003 Humidity Data Logger User Manual
HOBO U20L-04 Water Level Data Logger User Manual
Onset video guides
Watch setup, installation, and troubleshooting videos for this brand.
Onset support FAQ
Common questions about manuals, registration, and support for this brand.
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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.
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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.
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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.
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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.
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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.