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    • Apera Instruments GroStar GS1 pH Pen

      Apera Instruments GroStar GS1 pH 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 GS1 pH Pen includes: pH 7 & pH4 calibration solution (50ml...

      $115.99 $95.98
    • GroStar GS2 Soil pH Pen

      GroStar GS2 Soil pH 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 GS2 Soil pH Pen includes: pH 7 & pH 4 solution (50ml bottles...

      $256.99 $196.29
    • Milwaukee pH Tester With 1 Point Manual Calibration Milwaukee pH Tester With 1 Point Manual Calibration

      Milwaukee pH Tester With 1 Point Manual Calibration

      Milwaukee's economical tester is an easy-to-use, low cost instruments to measure quick and reliable pH, EC or TDS values.Measuring electrical conductivity is the best way of checking the amount of salt or dissolved solids (TDS) in water. Milwaukee...

      $57.99 $52.37
    • HM Digital PH/Temperature Meter HM Digital PH/Temperature Meter

      HM Digital PH/Temperature Meter

      The HM Digital PH/Temperature Meter is one of the most affordable solutions to testing nutrient solution pH and temperature at the same time. You can ensure you are feeding your plants nutrients that they can actually uptake, because without knowing pH...

      $71.50 $47.11
    • HM Digital Waterproof pH/Temperature Meter HM Digital Waterproof pH/Temperature Meter

      HM Digital Waterproof pH/Temperature Meter

      Ideal for all pH testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment, wine, coffee, agriculture...

      $101.92 $75.32
    • Milwaukee pH and Temp Monitor WiFi and Data Logging Milwaukee pH and Temp Monitor WiFi and Data Logging

      Milwaukee pH and Temp Monitor WiFi and Data Logging

      This fully digital bench meter and monitor features ground loop preventers and logic load shifter with a reading range of 0.000 pH to 14.000 pH, auto calibration (up to 3 points), and use Wi-Fi access to receive notifications of levels +/- set point...

      $549.99 $384.49
    • Pargro Metal Needle for 60CC Syringe

      Pargro Metal Needle for 60CC Syringe

      Metal Needles for 60CC SyringeUsed by the pros to take water samples deep inside a Grodan stonewool block or slab for better pH and EC analysis. Fits any standard Luer-Lock plastic syringe.

      $31.95 $9.65
    • Active Aqua pH Test Kit

      Active Aqua pH Test Kit

      (Wide Spectrum) Measures 3-10 pH.The Hydroponic pH test kit is good for 150 tests. At the rate of 3 tests per week it will last one year, making it excellent value for money. This kit covers a pH range of 3-10 measuring in 0.1 increments.

      $31.31 $12.56
    • Autopilot Digital pH Controller and Doser Autopilot Digital pH Controller and Doser

      Autopilot Digital pH Controller and Doser

        Autopilot Product Documents APCEPH1 Product Info The Autopilot pH-1 controller accurately and reliably measures and controls the pH of any water-based solution, including hydroponic nutrient mixtures, and fish aquarium water. After selecting...

      $419.20 $312.29

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