EXO fDOM Sensor Rental
- Compatible with EXO Sondes
- Surrogate measurement for colored dissolved organic matter
- Also known as CDOM
In The News
New findings could help water managers sharpen the tools they use to keep cyanobacteria, or blue-green algae, out of drinking water.
That’s important because cyanobacteria can make water taste and smell bad, and can even be toxic, resulting in vomiting, diarrhea, fever, muscle and joint pain and other symptoms.
Published in the Journal of Great Lakes Research, the study was conducted on three reservoirs in central Indiana—Eagle Creek, Geist and Morse—that provide drinking water for more than 800,000 people in greater Indianapolis.
Located just outside the city’s beltway, the reservoirs are popular getaways for watersports and fishing.Read More
Many algae sensors can detect Chlorophyll a or levels of blue-green algae. YSI’s new Total Algae Sensor can measure both at the same time.
“If you’re only looking at Chlorophyll a, you can miss a very big portion of total algae biomass,” said Tim Finegan, product manager.
The new sensor is an optional attachment to the company’s line of EXO sondes, which debuted earlier this year. It’s an optical probe and maintenance is limited to keeping the sapphire windows on the unit clean.
The Total Algae Sensor can be calibrated in two different ways, one for spot sampling and one for continuous sampling, which allows users to make sure readings are accurate for their specific monitoring applications.Read More
The new YSI EXO Sonde expands monitoring capabilities for users compared to YSI’s the previous generation of sondes. One new feature for the EXO is a fluorescent dissolved organic matter probe that measures light-absorbing particles in water.
The sensor is another attempt by YSI to provide instrumentation options to those in the waste water industry, or anyone interested in measuring dissolved organic matter alongside other parameters.
YSI’s fDOM sensor detects only on a narrow wavelength range. “The wavelength at which (particles) absorb light optimally and then the wavelength that they emit, or fluoresce light optimally, is unique to that molecule,” said Rob Ellison, YSI EXO director of research and development, during a webinar on the fDOM sensor.Read More