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HOBO MX2001 Deployment Requirements
The HOBO MX2001 logger top-end unit (MX2001-TOP) is IP67-rated weatherproof, but should not be considered waterproof.
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Tips on How to Use HOBO Water Level Loggers
Information on how to use HOBO water level loggers for stream flow, compensating for altitude effects, mounting in wells, techniques for deploying data loggers in salt water and freshwater environments.
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How to Build a Stilling Well
Learn how to build a stilling well to get more accurate water level measurements for wells, stormwater systems, canals, flood irrigation, rivers, coastal areas, and more.
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HOBO Water Level Logger vs the Competition
This paper highlights results from Onset's tests of the HOBO Water Level logger and comparable loggers from two competitors.
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Technical Application Note about the Altitude Effects on Water Level Logger Range
Onset's HOBO Water Level Logger is calibrated from 10 to 30 psia for the 30' range versions. The logger will function, but the accuracy will get worse the farther below 10 psia the pressure drops.
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Technical Application Note for Wireline Mounting a Water Level Logger in a Well
HOBO Water Level loggers can be hung in wells using Onset's special low-stretch cable with Teflon coating to avoid snagging and to make them easy to clean
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Deploying the HOBO Water Level Logger in Saltwater
Suggested products and measures for long-term deployments to prevent corrosion
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Using Baker's Yeast in the HOBO U26 Dissolved Oxygen (DO) Logger Calibration Process
Please refer to the attached document for instructions on how to use baker’s yeast (instead of sodium sulfite solution) for Step 2 of the HOBO U26 dissolved oxygen (DO) logger three-step calibration p
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