U20 Series - Water Level Data Loggers

Onset offers high-accuracy, pressure-based water level data loggers for deployment in depths of up to 250 feet in fresh or saltwater wells, streams, lakes, wetlands and tidal areas. These water level loggers feature research-grade accuracy at a great price, and are extremely easy to use, with no cumbersome vent tubes or desiccants to maintain. Stainless steel and titanium models are available.

    U20L-01

    Optical Interface for data transfer

    The HOBO U20L-01 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.

    This data logger requires either the U-DTW-1 Waterproof Shuttle or the Base-U-4 Base Station for configuration and data offload, HOBOware software (free download). NOTE: HOBOware Pro is required when using the U-DTW-1 Waterproof Shuttle. See compatible items below.

    Helpful Links:
    Barometric Pressure Compensation Assistant Demo
    Multi-rate Sampling Demo

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    U20L-02

    Optical Interface for data transfer

    The HOBO U20L-02 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% accuracy, a polypropylene housing for use in both fresh and salt water, and a non-vented design for convenient and hassle-free deployment.

    This data logger requires either the U-DTW-1 Waterproof Shuttle or the Base-U-4 Base Station for configuration and data offload, HOBOware software (free download). NOTE: HOBOware Pro is required when using the U-DTW-1 Waterproof Shuttle. See compatible items below.

    Helpful Links:
    Barometric Pressure Compensation Assistant Demo
    Multi-rate Sampling Demo

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    U20L-04

    Optical Interface for data transfer

    The HOBO U20L-04 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.

    This data logger requires either the U-DTW-1 Waterproof Shuttle or the Base-U-4 Base Station for configuration and data offload, HOBOware software (free download). NOTE: HOBOware Pro is required when using the U-DTW-1 Waterproof Shuttle. See compatible items below.

    Helpful Links:
    Barometric Pressure Compensation Assistant Demo
    Multi-rate Sampling Demo

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    U20-001-02-Ti

    The HOBO Water Level Titanium is recommended for saltwater deployment for recording water levels and temperatures in wetlands and tidal areas. This data logger features high accuracy at a great price and HOBO ease-of-use, with no cumbersome vent tubes or desiccants to maintain.

    Helpful Links:

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

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    U20-001-03-Ti

    The HOBO Water Level Titanium is recommended for saltwater deployment for recording water levels and temperatures in wetlands and tidal areas. This data logger features high accuracy at a great price and HOBO ease-of-use, with no cumbersome vent tubes or desiccants to maintain.

    Helpful Links:

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

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    U20-001-01-Ti

    The HOBO Water Level Titanium is recommended for saltwater deployment for recording water levels and temperatures in wetlands and tidal areas. This data logger features high accuracy at a great price and HOBO ease-of-use, with no cumbersome vent tubes or desiccants to maintain.

    Helpful Links:

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

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    KIT-S-U20-01

    Combining high accuracy water level measurements with out-of-the-box convenience, this money-saving kit includes everything needed to start logging right away. It is ideal for monitoring water levels and temperatures in wells, streams, lakes and freshwater wetlands.

    This kit includes:

    • U20-001-01 HOBO data logger (30' range)
    • BASE-U-4 base station with 5 interchangeable couplers
    • BHW-PRO HOBOware Pro software.

    Like other HOBO Water Level Data Loggers, the 30-foot version offers exceptional value and ease-of-use, with no cumbersome vent tubes or desiccants to maintain.

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    KIT-S-U20-02

    Combining high accuracy water level measurements with out-of-the-box convenience, this money-saving kit includes everything needed to start logging right away. It is ideal for monitoring water levels and temperatures in wells, streams, lakes and freshwater wetlands.

    This kit includes:

    Like other HOBO Water Level Data Loggers, the 100-foot version offers exceptional value and ease-of-use, with no cumbersome vent tubes or desiccants to maintain.

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