This high-accuracy conductivity 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.
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Non-contact sensor provides long life and less measurement drift
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Provides easy access to sensor for cleaning and shedding air bubbles
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HOBOware Pro software enables start/end-point calibration to compensate for any fouling and provides easy conversion to specific conductance and salinity
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USB optical interface provides high-speed, reliable data offload in wet environments
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Compatible with the HOBO Waterproof Shuttle for easy and reliable data retrieval and transport
Environment: The U24-001 Data Logger is for use in Outdoor and Underwater environments
Measurements: The U24-001 Data Logger supports the following measurements:
Temperature, Conductivity/Salinity
Documentation: U24-001 User Manual
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>Data Sheet
>Print Specifications
>View all U24 loggers
IMPORTANT: This HOBO data logger requires HOBOware software and a communications device. See Related Items below
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Memory - 18,500 temperature and conductivity
measurements when using one conductivity range; 14,400 sets of
measurements when using both conductivity ranges (64kbytes)
Sample rate - 1 second to 18 hrs, fixed or multiple-rate sampling with up to 8 user-defined sampling intervals
Battery life - 3 years (@ 1 min logging)
Maximum Depth - 70 m (225')
Operating Range - -2 to 36°C (28° to 97°F) - non freezing
Weight - 193 gm (6.82 ounces), buoyancy in freshwater: -59.8 gm (-2.11 ounces)
Size - 3.18 cm diameter x 16.5 cm, with 6.3 mm mounting hole (1.25" diameter x 6.5", ¼" hole)
Calibrated Range - Conductivity: Low Range: 0 to 1,000 µS/cm; Full Range: 0 to 10,000 µS/cm - Temperature: 5 to 35C (41 to 95F)
Accuracy - Conductivity: 3% of reading, or 5 µS/cm, whichever is greater / Temperature: 0.1C (0.2F)
Resolution -Conductivity: 1 uS/cm - Temperature: 0.01°C (0.02°F)
Response time - 1 second to 90% of change
The following equipment options are compatible with HOBO U24 Conductivity/Salinity Loggers:
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U22-U24-CAP Communications Window Protective Cap, 5-pack
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U20-CASE-1 Carrying Case for HOBO Water Level Loggers
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HOUSING-U2X Protective Housing for HOBO Water level Loggers