YSI, Inc.

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YSI, Inc. designs and manufactures precision measurement sensors and control instruments that serve a broad spectrum of sectors. Its products are deployed in aerospace, satellite systems, computer hardware, scientific instruments, and environmental monitoring applications. The company has also engineered interchangeable thermistors for use in geology, environmental enforcement, fish farming, food production, pharmaceutical and biotechnology research, as well as hospital settings. YSI’s whole‑blood analyzers provide quantitative readings of glucose and lactate, while its temperature probes are employed for patient monitoring. In addition, the firm offers multi‑parameter water monitoring systems capable of detecting non‑point source pollution.

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