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  • Hanna Checker® pH meter | Checker 1

    https://www.sigmaaldrich.com › Life Science › Labware
    About our ads
    SponsoredHanna labware from MilliporeSigma. Complete your research with this & more prod…

    0-14 pH range · Replaceable electrode · Easy calibration · 3000 hrs operation

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  • Water Testing Made Easy | pH Meters, Analyzers, Probes

    https://www.hach.com › Parameters › pH
    About our ads
    SponsoredLearn how to make your pH testing more accurate and more reliable. Explore Hach'…

    80+ years' experience · Lab & Process Meters · Expert Support & Service

    Types: Portable meters, Test strips, Probes and sensors