Measures and records both conductivity and temperatures in streams, lakes, and other freshwater sources. Non-contact sensor minimizes measurement errors related to dri' and open access to the sensor simplifies cleaning and maintenance.
Measures and records both conductivity and temperatures in streams, lakes, and other freshwater sources. Non-contact sensor minimizes measurement errors related to dri' and open access to the sensor simplifies cleaning and maintenance.
HOBO data loggers requires HOBOware software (USB interface cable included w/CD purchase) and a communications device. HOBOware Pro is required when using the U-DTW-1 Waterproof shuttle.
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.
Features
Applications
Supported Measurements
HOBOware
With the latest version of software (HOBOware 3.7.8), Optic Base Station and Waterproof Shuttle users will find much-improved communications methods.
For Mac users - Updating to apple's latest operating system (OS X 10.11.5) will remedy any communications issues you might have encountered with the HOBO U30 Weather Station and the Waterproof Shuttle.
HOBOmobile
HOBOmobile 1.5 for iOS can now push data to HOBOlink.com for free online data storage.
Download the Mobile App
Calibrated range | Conductivity: Low Range: 0 to 1,000 µS/cm; Full Range: 0 to 10,000 µS/cm - Temperature: 41° to 95°F (5° to 35°C) |
Accuracy | Conductivity: 3% of reading, or 5 µS/cm, whichever is greater / Temperature: 0.2°F (0.1°C) |
Resolution | Conductivity: 1 uS/cm - Temperature: 0.02°F (0.01°C) |
Maximum depth | 225' (70 m) |
Operating range | 28° to 97°F (-2 to 36°C) - non freezing |
Memory | 18,500 temperature and conductivity measurements when using one conductivity range; 14,400 sets of measurements when using both conductivity ranges (64kbytes) |
Battery life | 3 years (@ 1 min logging) |
Conductivity loggers, like Onset’s HOBO U24, are ideal for monitoring the impact on water resources from pollutants such as road salt, agricultural, and highway runoff.
Whether you are selecting a conductivity logger for the first time or have experience measuring conductivity, it is important to consider every aspect in order to determine which type of logger best suits your needs.
Surface and groundwater contamination is of great concern for biologists, environmental scientists, researchers, and water quality managers who assess the effects of natural and synthetic pollutants on water supplies. Below are the the five most important considerations in selecting and deploying a conductivity logger, namely:
For a full run-down on this crucial selection process, please read the full white paper here.
It is important to determine if the conductivity logger’s measurement range will cover the range of conductivity or salinity at your site and that the accuracy is sufficient in that range.
Conductivity loggers must be able to offset the effects of drift and fouling from algae or sediment buildup on the sensor. How the logger handles these issues is just as important as absolute accuracy. Some questions to ask manufacturers include:
As with all loggers, an important factor when selecting a conductivity logger is how easy it will be to deploy and then subsequently retrieve the data.
The accompanying software should also be considered when choosing a logger. The software in general should be highly intuitive so that you may quickly become proficient in configuring parameters, launching the logger, and offloading data.
As with any purchase, an important consideration is how much will the logger cost. Conductivity loggers are becoming increasingly less expensive, with some below $800. However, the cost of ownership does not pertain just to the actual purchase price of the logger, but also to its time- and hence money-saving features.
As the demand for water conductivity monitoring grows, so too will the need for instruments that make the process faster, cheaper, and more accurate. Underwater data loggers are the instruments of choice among researchers and resource managers because of their 24/7 operation, high accuracy, ease-of-use, and computer-based analysis and reporting capabilities.
For even more on this, read the full PDF!
Click on a category to view a selection of compatible accessories with the Onset HOBO U24-001 Fresh Water Conductivity Data Logger.
Calibrated range | Conductivity: Low Range: 0 to 1,000 µS/cm; Full Range: 0 to 10,000 µS/cm - Temperature: 41° to 95°F (5° to 35°C) |
Accuracy | Conductivity: 3% of reading, or 5 µS/cm, whichever is greater / Temperature: 0.2°F (0.1°C) |
Resolution | Conductivity: 1 uS/cm - Temperature: 0.02°F (0.01°C) |
Maximum depth | 225' (70 m) |
Operating range | 28° to 97°F (-2 to 36°C) - non freezing |
Memory | 18,500 temperature and conductivity measurements when using one conductivity range; 14,400 sets of measurements when using both conductivity ranges (64kbytes) |
Battery life | 3 years (@ 1 min logging) |
Conductivity loggers, like Onset’s HOBO U24, are ideal for monitoring the impact on water resources from pollutants such as road salt, agricultural, and highway runoff.
Whether you are selecting a conductivity logger for the first time or have experience measuring conductivity, it is important to consider every aspect in order to determine which type of logger best suits your needs.
Surface and groundwater contamination is of great concern for biologists, environmental scientists, researchers, and water quality managers who assess the effects of natural and synthetic pollutants on water supplies. Below are the the five most important considerations in selecting and deploying a conductivity logger, namely:
For a full run-down on this crucial selection process, please read the full white paper here.
It is important to determine if the conductivity logger’s measurement range will cover the range of conductivity or salinity at your site and that the accuracy is sufficient in that range.
Conductivity loggers must be able to offset the effects of drift and fouling from algae or sediment buildup on the sensor. How the logger handles these issues is just as important as absolute accuracy. Some questions to ask manufacturers include:
As with all loggers, an important factor when selecting a conductivity logger is how easy it will be to deploy and then subsequently retrieve the data.
The accompanying software should also be considered when choosing a logger. The software in general should be highly intuitive so that you may quickly become proficient in configuring parameters, launching the logger, and offloading data.
As with any purchase, an important consideration is how much will the logger cost. Conductivity loggers are becoming increasingly less expensive, with some below $800. However, the cost of ownership does not pertain just to the actual purchase price of the logger, but also to its time- and hence money-saving features.
As the demand for water conductivity monitoring grows, so too will the need for instruments that make the process faster, cheaper, and more accurate. Underwater data loggers are the instruments of choice among researchers and resource managers because of their 24/7 operation, high accuracy, ease-of-use, and computer-based analysis and reporting capabilities.
For even more on this, read the full PDF!
Click on a category to view a selection of compatible accessories with the Onset HOBO U24-001 Fresh Water Conductivity Data Logger.