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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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Looking for the best instrument?

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Finding the right handheld water quality meter should be easy. Just take our short quiz and the intuitive product selector will provide you with an immediate recommendation! 

Choose the Right Handheld

New optical dissolved oxygen meter

YSI-ProSolo-Handheld.jpgThe ProSolo incorporates smart sensor technology that enables sensors to be automatically recognized by the handheld. Additionally, DIGITAL sensors store calibration data, so probe assemblies can be swapped between handhelds without the need for re-calibration.

Learn More about ProSolo

New digital water quality meter

water-quality-meter-ysi-proswap-sampling-handheld.jpgThe ProSwap can transform into whatever you need: a purpose-built turbidity meter or a high-accuracy optical DO meter; a spot sampling pH meter or a profiling conductivity-temperature-depth system. Even beach monitoring for harmful algal blooms is possible with ProSwap!

Learn more about ProSwap

Download the new titration handbook

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Looking to perfect your titrations? Explore Xylem’s Titration Handbook: an all-encompassing guide to help any laboratory navigate one of the oldest quantitative methods in chemical analysis.

Download the handbook

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