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    HOBO Water Level Data Logger (0-30 m) U20L-02

    € 449,- 0 In stock: 1-4 Weeks
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    Product description

    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.

    • Self-contained non-vented design enables easy deployment
    • Ideal for use in both fresh and saltwater environments, including wells, streams, lakes, wetlands, and tidal areas
    • Depths up to 100 feet
    • Durable ceramic pressure sensor withstands freezing
    • HOBOware Pro software provides easy conversion to accurate water level reading, fully compensated for barometric pressure, temperature, and water density

     

    Specifications

    Pressure (Absolute) and Water Level Measurements U20L-02
    Operation Range0 to 400 kPa (0 to 58 psia); approximately 0 to 30.6 m (0 to 100 ft) of water depth at sea level, or 0 to 33.6 m (0 to 111 ft) of water at
    3,000 m (10,000 ft) of altitude
    Factory Calibrated Range69 to 400 kPa (10 to 58 psia), 0° to 40°C (32° to 104°F)
    Burst Pressure500 kPa (72.5 psia) or 40.8 m (134 ft) depth
    Water Level Accuracy*Typical error: ±0.1% FS, 3.0 cm (0.1 ft) water
    Maximum error: ±0.2% FS, 6.0 cm (0.2 ft) water
    Raw Pressure Accuracy**±0.3% FS, 1.20 kPa (0.17 psi) maximum error
    Resolution<0.04 kPa (0.006 psi), 0.41 cm (0.013 ft) water
    Pressure Response Time (90%)***<1 second at a stable temperature; measurement accuracy also depends on temperature response time
    Temperature Measurements
    Operation Range-20° to 50°C (-4° to 122°F)
    Accuracy±0.44°C from 0° to 50°C (±0.79°F from 32° to 122°F), see Plot A in manual
    Resolution0.10°C at 25°C (0.18°F at 77°F), see Plot A in manual
    Response Time (90%)10 minutes in water (typical)
    Stability (Drift)0.1°C (0.18°F) per year
    Logger
    Real-time Clock±1 minute per month 0° to 50°C (32° to 122°F)
    Battery2/3 AA, 3.6 Volt lithium, factory-replaceable
    Battery Life (Typical Use)5 years with 1 minute or greater logging interval
    Memory (Non-volatile)64K bytes memory (approx. 21,700 pressure and temperature samples)
    WeightApproximately 154 g (5.43 oz) in air Approximately 53.9 g (1.9 oz) in fresh water
    Dimensions3.18 cm (1.25 inches) diameter, 15.24 cm (6.0 inches) length; mounting hole 6.3 mm (0.25 inches) diameter
    Wetted MaterialsPolypropylene housing and lanyard; Viton and Buna-N O-rings; ceramic sensor in acetyl end cap; stainless steel screws suitable for saltwater
    Logging IntervalFixed-rate or multiple logging intervals, with up to 8 user-defined logging intervals and durations; logging intervals from 1 second to 18 hours. Refer to the HOBOware User’s Guide for details.
    Launch ModesImmediate start and delayed start
    Offload ModesOffload while logging; stop and offload
    Battery IndicationBattery voltage can be viewed in status screen and optionally logged in datafile. Low battery indication in datafile.
    Environmental RatingIP68

    Manual

    Specifications

    Article number
    U20L-02

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    HOBO Water Level Data Logger (0-30 m) U20L-02
    € 449,-
    HOBO Water Level Data Logger (0-30 m) U20L-02
    0 In stock: 1-4 Weeks
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