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  • Laboratory Electrochemistry

    Precise, Trusted Results.

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  • Integrated Systems & Services

    Better Data, Better Decisions.

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  • Wastewater Solutions

    Wastewater treatment facilities are faced with immense challenges.

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YSI's environmental products provide high quality, high resolution data to better understand and manage our water resources. They are used for wastewater process control, climate change and drought studies, flood monitoring and warning, stormwater runoff monitoring, groundwater quantification and contamination, aquaculture production and source water safety. In addition to standard products, YSI's custom integrated systems help customers obtain critical data in most any application. Tell us what you need and let us design and deploy a total system, even if you simply just want the data.

YSI Life Science and laboratory products are considered the Gold Standard for QC applications. They are used for process control, research and industrial applications by food and beverage, environmental, biofuels, biotech and pharmaceutical customers.

Product Categories

Industries & Applications



The world's natural fisheries have been depleted. As a result, moratoriums on commercial fishing have been implemented in many parts of the world as populations continue to grow. Aquaculture is a rapidly growing form of food production that has successfully yielded a substantial amount of fish and shellfish to help feed the world's growing population and growing appetite for seafood. However, this method of food production is faced with many challenges, some of which include increasing costs, more stringent government regulations, and limited water supplies. These challenges have created a need for more advanced monitoring and feeding technology in order to create tightly controlled and sustainable growth conditions.



YSI Analyzers are used in biofuels, biotech and bioprocessing applications around the world and are often referred to as the "work horses" of the lab. Lab managers like that YSI analyzers are reliable, provide fast, accurate results, and require minimal operator training. YSI analyzers measure important nutrients like glucose, glutamine, and methanol; and can monitor the level of potentially harmful byproducts like lactate and ammonium. Biopharma uses YSI rapid electrode-based measurements to both monitor and control processes.YSI analyzers measure xylose and glucose to monitor fermentation progress in cellulosic ethanol research and measure residual ethanol during distillation in production facilities.

General & Environmental Lab

General & Environmental Lab

All sampling applications require the collection of high-quality data, but the demand for accurate data is perhaps greatest in the laboratory setting. Confidence in laboratory results is paramount, as this data is used for EPA reporting of parameters such as biochemical oxygen demand (BOD) of wastewater. Lab-obtained data is also commonly used in wastewater process control and verification in addition to drinking water analysis, publication, clinical research, and many other applications.

About YSI

About YSI

We work with industry and government professionals to provide monitoring and sampling solutions for process improvement and to protect our planet's natural resources.

Our environmental products provide infrequent maintenance cycles, user interchangeable sensors, and field-rugged enclosures all backed up by a passionate and knowledgeable technical support team.

When purchasing YSI, you can expect proven products and technologies that provide true value and low TCO (total cost of ownership). Whatever your instrumentation need, YSI is ready to provide a reliable solution. We know you are passionate about your work...we are equally passionate and enthusiastic about what we can offer to help you succeed.

For more information and a full product catalog, please visit

Contact Us


YSI Incorporated

1700/1725 Brannum Lane
Yellow Springs, Ohio 45387-1107

Phone & Email

+1 937-688-4255
+1 877-726-0975 (US)
+1 937-767-9353 Fax