SonTek CastAway-CTD

The CastAway-CTD is a lightweight, easy to use instrument designed for quick and accurate conductivity, temperature, and depth profiles.

Features

  • Can be used for sensor verification, speed of sound profiles, thermocline profiling, and more
  • Sampling rate and sensor response of 5 Hz with 1m per second free fall design
  • Designed for CTD profiling down to 100m
Your Price $6,240.00
In Stock
SonTek
Free Lifetime Tech SupportFree Lifetime Tech Support
Free Ground ShippingFree Ground Shipping
ImagePart#Product DescriptionPriceStockOrder
SonTek CastAway-CTDCA-CTD CastAway-CTD conductivity, temperature & depth instrument
$6,240.00
In Stock
SonTek CastAway-CTD
CA-CTD
CastAway-CTD conductivity, temperature & depth instrument
In Stock
$6,240.00

The CastAway-CTD is a small, rugged and technically advanced CTD designed for profiling to depths of up to 100m. The system incorporates modern technical features which allow it to achieve a 5 Hz response time, fine spatial resolution and high accuracy. It uses a six electrode flow-through conductivity cell with zero external field coupled with a rapid response thermistor to attain high measurement accuracies. The instrument is simple to deploy, does not require a pump and is hydrodynamically designed to free fall rate of 1 m/s.

The integrated real-time data display screen, internal GPS sensor and automated wireless data transfer are unique features that simplify data collection.

  • Salinity Accuracy: 0.1 PSU
  • Temperature Accuracy: 0.05°C
  • Small size
  • Integrated GPS position
  • Real-time display screen
  • Wireless data transfer
  • 5 Hz sampling rate

Each CastAway-CTD cast is referenced with both time and location using its built-in GPS receiver. Latitude and longitude are acquired both before and after each profile. Plots of conductivity, temperature, salinity and sound speed versus depth can be viewed immediately on the CastAway's integrated color LCD screen in the field.  Raw data can be easily downloaded via Bluetooth to a Windows computer for detailed analysis and /or export at any time.

  • (1) CastAway-CTD with polyurethane jacket
  • (3) Magnetic stylus pens
  • (1) Bluetooth adapter
  • (2) Carabiners
  • (1) 15m casting line
  • (4) AA batteries
  • (1) Cleaning brush
  • (1) USB flash drive with CastAway Windows software and documentation
  • (1) Quick Start Guide
  • (1) Hard plastic storage/shipping case
Questions & Answers
Can the instrument record a single data point?

Yes, there is a way to take point measurements, which is outlined on page 14 of this guide.

How long is the battery life?

With continuous use, battery life is estimated at 40 hours.

How much internal memory do the CTDs have?

The CastAway-CTD has 15 MB internal memory, which translates to ~750 casts.

Please, mind that only logged in users can submit questions

In The News

After 10 Years, Great Lakes Monitoring Program Still Adapting

The public knows much more about Great Lakes coastal wetlands than it did ten years ago.  In those ten years, the information gathered through the Great Lakes Coastal Wetlands Monitoring Program has led to and supported dozens of advances in Great Lakes science while helping nail down the shifting nature of ecosystem health for a vital part of the Great Lakes system. “I probably get one or two requests for information a week,” Don Uzarski, director of the program, told Environmental Monitor. The program’s most recent semi-annual report lists 40 scientific publications using the collected data. In addition, the data has been used in even more restoration projects, graduate theses and presentations.

Read More

Fisheries Management Drives Fish Populations Recovery

You might be surprised to hear good news about the world’s oceans. The dominant narrative for years has been that the oceans’ sea life populations are on the brink of collapse. But, according to research Ray Hilborn published in January in the Proceedings of the National Academy of Sciences, the ocean’s fisheries are bouncing back, provided that they’re well managed. “The bottom line is that if fisheries are managed they are sustainable,” Hilborn, a professor at the University of Washington’s school of aquatic and fisheries sciences, told Environmental Monitor. New evidence of recovery After two decades of recovering fish populations, many of the world’s fisheries are stable or recovering, Hilborn’s research shows.

Read More

Chloride Contamination Threatens Thousands of Northeast & Midwest Lakes

Thousands of lakes in the northeastern United States are at risk of chloride contamination. In a 17-state area from Minnesota to Missouri to Maine, elevated chloride levels in some of the region’s nearly 50,000 lakes are driven largely by landscape features that are cleared of snow and ice by road salt in the winter. “The biggest driver of increasing chloride concentrations in these lakes was road density and development. The more developed a watershed, the more likely you are to have roads and parking lots,” said Hilary Dugan, an assistant professor in the Center for Limnology at University of Wisconsin—Madison. Dugan is the lead author on a study examining the issue recently published in Environmental Science and Technology .

Read More