YSI

The legacy of our global company reaches back to 1948 and a three-man partnership that was forged at Antioch College in Yellow Springs, Ohio, USA. This village, between Dayton and Columbus, still serves as the headquarters for what started as the "Yellow Springs Instrument Company" — now known as YSI Inc.

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Shop our innovative products and buy confidently with us. Our team is available to assist, and we have you covered with all the ordering information you need. Our knowledgeable team is ready to help you along every step of your projects and purchases.