These multiparameter instruments provide high-quality data in a variety of applications from rivers and streams to groundwater, aquaculture, and anywhere else your monitoring takes you.

Smart features, including a built-in USB port and an intuitive user interface, make data collection easy and convenient.

As with all YSI Pro series instruments, the ProQuatro and ProDSS are built with field use in mind. They are rugged, waterproof, and even float if they're dropped in the water.

Learn more about the ProDSS ([ Ссылка ]) and ProQuatro ([ Ссылка ]).

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