Hydrology Studies

Hydrology Studies

Hydrology studies play a crucial role in water resources management; they are utilized to develop more effective solutions for issues related to water availability and water allocation. Hydrologist-led research provides vital information for flood forecasting, water supply determinations, water conservation studies, reservoir operations, and in the planning of large-scale water projects.

For conducting hydrologic investigations, monitoring tools record water level and flow data from waterways, lakes, groundwater systems, and other aquatic resources—capturing vital information for analyzing conditions, studying changes over time, and supporting decisions.

Onset offers a range of robust data loggers for use in long-term monitoring of water environments, providing hydrologists with accurate measurements and reliable performance in severe and challenging conditions.

Top Products

Results: 1 to 4 of 4
  • MX2001

    The HOBO® MX2001 is the industry’s first water level data logger designed for convenient wireless setup and download from mobile devices via Bluetooth Low Energy. The logger dramatically simplifies and lowers the cost of field data collection by providing wireless access to high-accuracy water level and temperature measurements right from a mobile phone or tablet. The MX2001 logger consists of a top-end unit and a water level sensor which are sold as a set, plus a direct read cable to connect them. Cables can be ordered in lengths from 0.2 to 500m for deployment in a wide range of wells.

  • U20L-04

    The HOBO U20L-004 is a low-cost, research-grade water level data logger for continuously measuring water level and temperature in a wide range of underwater environments. It features 0.1% measurement accuracy, a polypropylene housing for use in both fresh and salt water, and a non-vented design for convenient and hassle-free deployment.

    Helpful Links:

    Sensor location drawing
    Barometric Pressure Compensation Assistant Demo
    Multi-rate Sampling Demo

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  • U26-001

    Measure oxygen concentrations in lakes, streams, rivers, estuaries, and coastal waters with the HOBO U26 Dissolved Oxygen Data Logger. This affordable and precise data logger is recommended for aquatic biology and hydrology research projects. The HOBO U26 uses RDO® Basic (Rugged Dissolved Oxygen) optical DO sensor technology and is easy to maintain.


    • U26-001 data logger
    • DO sensor cap
    • Protective Guard
    • Calibration Boot with sponge
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  • U24-001

    This high-accuracy conductivity data logger is a cost-effective way to collect water quality data. The HOBO U24 measures and records both conductivity and temperatures in streams, lakes, and other freshwater sources. This logger is recommended for monitoring aquifers for saltwater intrusion and road and agricultural runoff. This product’s open access to its sensor simplifies cleaning and maintenance. The HOBO U24’s non-contact sensor minimizes measurement errors related to drift. In addition, the logger features software-based drift compensation. 

    The HOBO U24 Conductivity data logger features a non-contact sensor with a Titanium Pentoxide coating. This coating prevents the sensor from coming in contact with the water, which in turn prevents tarnishing or corrosion associated with traditional electrode sensors. This sensor coating is also inert, enabling fouling to be easily wiped off the sensor.
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