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Meters, pH & Calibration Solutions

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Hanna GroLine HI12943 Soil / Substrate pH Electrode for HI9814

The Hanna GroLine HI1294 Soil/Substrate pH Electrode is specifically designed for use with the Hanna HI9814 GroLine pH/EC/TDS/°C Meter with CAL Check. It's intended for accurate pH measurements in soil or substrates.
$215.00

Bluelab 2.77EC Conductivity Solution 500 mL

Bluelab 2.77EC Conductivity Solution 500mL: Ensure precise readings with this calibration solution. Perfect for maintaining optimal nutrient levels.
$18.90

Bluelab COMMERCIAL Truncheon Meter

Bluelab COMMERCIAL Truncheon Meter: Ensure precise nutrient monitoring in commercial operations with this high-quality meter. Bluelab's Truncheon Meter provides accurate measurements for optimal nutrient management and crop health.
$145.00

pH Up Liquid Gallon

This base solution is formulated using potassium hydroxide and potassium carbonate. Add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level.
$32.28

Bluelab pH Probe KCl Storage Solution 250mL

Maintain pH probe performance with Bluelab pH Probe KCI Storage Solution 250mL. Ensure accurate readings and prolong probe lifespan in your hydroponic setup.
$24.50

Bluelab pH 7.0 Calibration Solution 500 mL

Calibrate pH meters accurately with Bluelab pH 7.0 Calibration Solution 500 mL. Ensure precise readings for optimal nutrient management in your hydroponic system.
$18.00

pH Down Liquid Quart

The acid formulation uses food grade phosphoric acid to lower the pH to the proper level. Widely recognized as a consistent and reliable product. Add when your nutrient pH is too high in order to lower the pH to the proper level. Promotes pH stability.
$14.39

Bluelab pH 4.0 Calibration Solution 500 mL

Bluelab pH 4.0 Calibration Solution 500 mL: Ensure accurate pH readings with Bluelab's pH 4.0 Calibration Solution. This 500 mL bottle is formulated for precise calibration of pH meters and probes, maintaining the reliability of pH monitoring equipment.
$18.00

pH Down Liquid Gallon

The acid formulation uses food grade phosphoric acid to lower the pH to the proper level. Widely recognized as a consistent and reliable product. Add when your nutrient pH is too high in order to lower the pH to the proper level. Promotes pH stability.
$32.28

pH Up Liquid Quart

This base solution is formulated using potassium hydroxide and potassium carbonate. Add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level.
$15.68

pH Test Kit 1 oz

The General Hydroponics pH Test Indicator can help you maintain an ideal pH level (which is between 5.5 and 6.5). This can be achieved by monitoring your pH using the super concentrated drops found with the test indicator.
$9.59

HF Active Air 3-way Meter

Monitor key environmental factors with the Active Air 3-way Meter. This multifunctional tool measures soil pH, moisture content, and light levels, providing valuable insights to help you maintain optimal growing conditions for your plants.
$13.99