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    • HM Digital pH / TDS / EC / Temp meter

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      The COM-300 is an advanced waterproof combo meter with superior accuracy.?áThe meter measures four parameters: pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS) and temperature.?áFeatures include 2 different conductivity conversion factors...

      $163.15 $128.28
    • Apera Instruments GroStar GS4 5-in-1 pH/EC/PPM/Temp Combo Pen

      Apera Instruments GroStar GS4 5-in-1 pH/EC/PPM/Temp Combo Pen

      GroStar Product DocumentsGroStar pH 4 Solution SDSGroStar pH 7 Solution SDSGroStar pH 10 Solution SDSGroStar ORP Storage Solution SDSLab grade instruments designed specifically for growers! The GS4 5-in-1 Combo Pen includes: pH 7 & pH 4 calibration...

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    • Bluelab Combo Meter Bluelab Combo Meter

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      Bluelab Product DocumentsBluelab Combo Meter InstructionsBluelab Combo Meter Troubleshooting InstructionsBluelab Combo Meter Spec SheetBluelab Conductivity Probe Cleaning GuideBluelab pH Probe Cleaning GuideThe Bluelab Combo Meter is the ultimate tool...

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