YSI Water Quality Meters & Sondes

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    YSI handheld and benchtop water quality instruments: ProDSS, ProQuatro, ProSolo, ProSwap and Pro Series meters, TruLab and MultiLab benchtops, turbidimeters and photometers. Colorimetry reagents are stocked under Water Quality › Colorimetry.

    85 products
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    YSI Pro30 conductivity, salinity, and TDS handheld water quality meter
    YSI PRO Series 30 - Conductivity, Salinity, TDS Meter
    from $800.00
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    YSI ProSwap Compatible Sensors
    YSI ProSwap Compatible Sensors
    YSI ProSwap Compatible Sensors
    from $524.40
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    YSI Primary Chlorine Standard, 1.5 mg/L
    YSI Primary Chlorine Standard, 1.5 mg/L, 100 mL
    $35.00
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    YSI Sample Cuvettes, 24 mm, 12-Pack
    $90.00
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    YSI Replacement COD Tube Adapter, 16 mm
    $26.00
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    YSI pHotoFlex pH Replacement Light Shield
    $56.00
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    YSI pHotoFlex STD Replacement Light Shield
    $56.00
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    YSI Secondary Reference Standard Set, Chlorine
    $131.00
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    YSI Sentix 42 pHotoFlex pH Electrode
    YSI Sentix 42 pHotoFlex pH Electrode
    $295.00
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    YSI pHotoFlex Replacement Vials, 28 x 60 mm, 12-Pack
    $72.00
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    YSI pHotoFlex Field Case
    YSI pHotoFlex Field Case
    $411.00
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    YSI TFK CR External Temperature Sensor
    $290.00
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    YSI CR 4200 Thermal Reactor
    YSI CR 4200 Thermal Reactor
    $1,751.00
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    YSI CR 3200 Thermal Reactor
    YSI CR 3200 Thermal Reactor
    $1,385.00
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    YSI CR 2200 Thermal Reactor
    YSI CR 2200 Thermal Reactor
    $989.00
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    YSI 910 COD Colorimeter
    YSI 910 COD Colorimeter
    $803.00
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    YSI 900 Chlorine Colorimeter
    YSI 900 Free and Total Chlorine Colorimeter
    $559.00
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    YSI pHotoFlex STD/SET Colorimeter Kit
    YSI pHotoFlex STD/SET Colorimeter Kit
    $2,387.00
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    YSI pHotoFlex pH/SET Colorimeter Kit
    YSI pHotoFlex pH/SET Colorimeter Kit
    $2,862.00
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    YSI pHotoFlex pH Colorimeter
    YSI pHotoFlex pH Colorimeter
    $1,829.00