Water Blogged 

Water Quality Monitoring Challenges | 3 of 5


After speaking to several of our customers we have identified the top 5 challenges that one may face when collecting water quality data. This post will address challenge number 3. With the expertise of our very own product manager’s and technical support team, we are sharing how to deal with and/or avoid these typical frustrations and how new industry technology can help tackle these big issues.

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Improving pH to Monitor Climate Change and Ocean Acidification


Team Xylem has a long and successful track record of commercializing high-performance and reliable optical chemical sensors used in oceanography and leveraged this experience to develop a pH-sensing platform to address the needs of the growing...

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Welcome to the New YSI.com

YSI has served the environmental, water quality and Life Sciences markets for over 65 years. The new web site was designed for you - to help you learn, review and quickly find the products and information you need to perform your job.

Buy Online
In order to provide a convenient experience we now have online buying for many of our products to the US audience. If a product is available for purchase there will be an 'Add to Cart' button on the product page. YSI products are also available through our distribution partners. To locate a distributor please visit the 'Find a Distributor' page.

Request Pricing 
All of our product pages will have an option for you to request pricing. By simply clicking the button, or link, and providing some information, we will have one of our knowledgeable YSIers provide assistance and pricing.

We understand the new site might take a little getting used to, so after searching and getting acquainted, we encourage you to provide your feedback at feedback@ysi.com