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  • 31iVPDO7XJL
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    Bluelab PENCON Conductivity Pen and Digital TDS Meter, Water Tester for Temperature and Nutrient (CF, EC, PPM 500, PPM 700), TDS Testing Kit for Hydroponic System and Indoor Plant Grow

    Original price was: $94.00.Current price is: $89.99.
  • 31fOW7NnDJL
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    bluelab pH Pen-Digital pH Tester – Reliable & Accurate for High Yield Crops – Hand-Held Meter – Measures pH & Temperature in Solutions and Soil Solutions – Optimize Plant Health & Performance,White

    Original price was: $112.50.Current price is: $99.95.
  • 31NqeZGpj8L
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    Bluelab PROBPH pH Probe for Water, Replacement Electrode for Meter, Monitor, and Controller with Easy Calibration, Tool for Hydroponic System and Indoor Plant Grow

    $84.00
  • 51N30uhhAvL
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    CAREKITPHCON Probe Care Kit for pH and Conductivity (TDS/PPM) Probes and Pens with 4 Solutions and Cleaners, Cleaning Kit Tool for Hydroponic system and Indoor Plant Grow

    $31.00