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    pH / EC / TDS Meters & Solutions

    At Quality Horticulture, we provide an extensive selection of pH, EC, and TDS meters tailored for all gardening applications—from indoor and hydroponic setups to greenhouse and outdoor cultivation. With our range of calibration solutions and pH adjustment products, you can effortlessly maintain optimal parameters for your plants, driving healthy growth and maximizing yields.

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    Q100372.jpg

    GH pH Up Pro 1 Gallon

    Q100372

    General Hydroponics® Pro pH adjusters are based on completely different technology than our traditional smaller sized adjusters offering. New non-mineral based acids and bases will not add nutrient value like the use of phosphoric acid or potassium hydroxide. They are safer to use as well as compared to mineral based adjusters. This is due to having a zero rating score for all safety categories on the HMIS scale as well as being non-corrosive and non-caustic. This means there are no HazMat fees to ship these products like other pH adjusters. Use Pro pH UP or Pro pH DOWN to effectively adjust the pH of nutrient solutions or irrigation water. GH Pro pH adjusters are highly concentrated and available in commercial sizes.

    • Non-Caustic
    • Non-Corrosive
    • Do not need to be shipped Hazmat like other adjusters
    • Alternative to harsh mineral hydroxides
    • Triple zero HMIS score
    • Does not contribute nutritional value like other adjusters
    • Concentrated Formula
    Q101316.jpg

    Mondi Mini Greenhouse Thermo-Hygrometer, Black [E100-VB]

    Q101316
    • Patented design, precisely monitors temperature and humidity levels inside the Mondiâ„¢ Mini Greenhouse or other environments
    • Provides growers with real-time temperature and humidity data and eliminates the need to open the dome for readings.
    • Ideal for successful large-scale propagation of seedlings and cuttings.
    • Includes a proprietary 8 mm (0.315 inch) drill piece, placement sticker, and product information guide.
    • Color: Black.
    • Dimensions (LxWxH): 4.1 x 0.3 x 1.2 in (10.41 x 0.76 x 3.05 cm).
    Q101319.jpg

    Mondi Mini Greenhouse Thermo-Hygrometer, White [E100-VW]

    Q101319
    • Patented design, precisely monitors temperature and humidity levels inside the Mondiâ„¢ Mini Greenhouse or other environments
    • Provides growers with real-time temperature and humidity data and eliminates the need to open the dome for readings.
    • Ideal for successful large-scale propagation of seedlings and cuttings.
    • Includes a proprietary 8 mm (0.315 inch) drill piece, placement sticker, and product information guide.
    • Color: White.
    • Dimensions (LxWxH): 4.1 x 0.3 x 1.2 in (10.41 x 0.76 x 3.05 cm).
    Q101347.jpg

    Measure Master Graduated Round Container (32 oz / 1,000 ml)

    Q101347
    • Simplifies measuring tasks.
    • Clear US oz and metric ml graduations.
    • Impact-resistant plastic for durability.
    • Translucent design for easy liquid level viewing.
    • Conversion chart on container for quick reference to common measurements.
    • 32 ounce (1,000 milliliter) container.
    Q100378.jpg

    General Hydroponics PRO pH Down 6 gal

    Q100378

    General Hydroponics® Pro pH adjusters are based on completely different technology than our traditional smaller sized adjusters offering. New non-mineral based acids and bases will not add nutrient value like the use of phosphoric acid or potassium hydroxide. They are safer to use as well as compared to mineral based adjusters. This is due to having a zero rating score for all safety categories on the HMIS scale as well as being non-corrosive and non-caustic. This means there are no HazMat fees to ship these products like other pH adjusters. Use Pro pH UP or Pro pH DOWN to effectively adjust the pH of nutrient solutions or irrigation water. GH Pro pH adjusters are highly concentrated and available in commercial sizes.

    • Non-Caustic
    • Non-Corrosive
    • Do not need to be shipped Hazmat like other adjusters
    • Alternative to harsh mineral hydroxides
    • Triple zero HMIS score
    • Does not contribute nutritional value like other adjusters
    • Concentrated Formula
    Q113148.jpg

    GH pH Control Kit (12/Cs)

    Q113148
    General Hydroponics pH Control Kit contains 8 oz pH UP, 8 oz pH DOWN, 1 oz indicator and vial.
    Q113151.jpg

    GH pH Up Liquid Gallon (4/Cs)

    Q113151
    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.
    Q113153.jpg

    GH pH Down Liquid Quart (12/Cs)

    Q113153
    The acid formulation uses phosphoric acid to lower the pH to the proper level.
    Q113154.jpg

    GH pH Down Liquid Gallon (4/Cs)

    Q113154
    The acid formulation uses phosphoric acid to lower the pH to the proper level.
    Q101317.jpg

    Mondi Mini Greenhouse Thermo-Hygrometer, Green [E100-VG]

    Q101317
    • Patented design, precisely monitors temperature and humidity levels inside the Mondiâ„¢ Mini Greenhouse or other environments
    • Provides growers with real-time temperature and humidity data and eliminates the need to open the dome for readings.
    • Ideal for successful large-scale propagation of seedlings and cuttings.
    • Includes a proprietary 8 mm (0.315 inch) drill piece, placement sticker, and product information guide.
    • Color: Green.
    • Dimensions (LxWxH): 4.1 x 0.3 x 1.2 in (10.41 x 0.76 x 3.05 cm).
    Q101318.jpg

    Mondi Mini Greenhouse Thermo-Hygrometer, Orange [E100-VO]

    Q101318
    • Patented design, precisely monitors temperature and humidity levels inside the Mondiâ„¢ Mini Greenhouse or other environments
    • Provides growers with real-time temperature and humidity data and eliminates the need to open the dome for readings.
    • Ideal for successful large-scale propagation of seedlings and cuttings.
    • Includes a proprietary 8 mm (0.315 inch) drill piece, placement sticker, and product information guide.
    • Color: Orange.
    • Dimensions (LxWxH): 4.1 x 0.3 x 1.2 in (10.41 x 0.76 x 3.05 cm).
    Q100374.jpg

    General Hydroponics PRO pH Up 6 gal

    Q100374

    General Hydroponics® Pro pH adjusters are based on completely different technology than our traditional smaller sized adjusters offering. New non-mineral based acids and bases will not add nutrient value like the use of phosphoric acid or potassium hydroxide. They are safer to use as well as compared to mineral based adjusters. This is due to having a zero rating score for all safety categories on the HMIS scale as well as being non-corrosive and non-caustic. This means there are no HazMat fees to ship these products like other pH adjusters. Use Pro pH UP or Pro pH DOWN to effectively adjust the pH of nutrient solutions or irrigation water. GH Pro pH adjusters are highly concentrated and available in commercial sizes.

    • Non-Caustic
    • Non-Corrosive
    • Do not need to be shipped Hazmat like other adjusters
    • Alternative to harsh mineral hydroxides
    • Triple zero HMIS score
    • Does not contribute nutritional value like other adjusters
    • Concentrated Formula
    Q100729.jpg

    pH Litmus Paper, 15 ft (4.5 m) Roll

    Q100729
    • A 15-foot (4.5-meter) roll of pH testing (litmus) paper.
    • Comes in a single roll dispenser with a color chart.
    • Displays distinct color changes for each half pH unit between 5.5 to 8.0.
    Q100730.jpg

    Nutradip Nutrient PPM Meter

    Q100730
    • Measures nutrient strength reliably.
    • Continuous monitoring with automatic temperature compensation.
    • Built-in DC power for portability.
    • Engineered for accuracy and durability.
    • Helps growers measure and monitor their plants effectively.
    Q112710.jpg

    CannaMax Labs

    P_00071

    CannaMax Labs offers a range of professional-quality calibration and nutrient solutions.

    • pH 4 and pH 7 reference solutions for the calibration of pH meters.
    • 1,000 ppm for TDS meter calibration.
    • Potassium Silicate helps prevent mold and fungus growth, raises nutrient pH levels, and supplies essential potassium.
    Q112681.jpg

    CannaMax Labs pH 4 (500 ml / 1 pt)

    Q112681
    • Professional-quality pH reference solution for pH meter calibration.
    • 500 milliliter (1 pint) bottle.
    Q112682.jpg

    CannaMax Labs pH 7 (500 ml / 1 pt)

    Q112682
    • Professional-quality pH reference solution for pH meter calibration.
    • 500 milliliter (1 pint) bottle.
    Q112683.jpg

    CannaMax Labs 1,000 ppm (500 ml / 1 pt)

    Q112683
    • Professional-quality EC reference solution for TDS meter calibration.
    • 500 milliliter (1 pint) bottle.
    Q112694.jpg

    Bumper Crop™ pH Up and pH Down

    P_00053
    • The perfect pH adjustment solutions!
    • pH Up raises the pH of plant food solutions.
    • pH Down lowers the pH of the water around plant roots.
    • Helps your plants absorb nutrients.
    • Enhances flower development.
    • Works with any nutrient program.
    • Provides simple and easy pH maintenance.
    • Available in a range of sizes.
    Q112689.jpg

    Bumper Crop pH Down (1 L / 1 qt)

    Q112689
    • The perfect pH adjustment solution!
    • Lowers the pH of the water around plant roots.
    • Helps your plants absorb nutrients.
    • Enhances flower development.
    • Works with any nutrient program.
    • Provides simple and easy pH maintenance.
    • 1 liter (1 quart) bottle.
    Q112690.jpg

    Bumper Crop pH Down (4 L / 1 gal)

    Q112690
    • The perfect pH adjustment solution!
    • Lowers the pH of the water around plant roots.
    • Helps your plants absorb nutrients.
    • Enhances flower development.
    • Works with any nutrient program.
    • Provides simple and easy pH maintenance.
    • 4 liter (1 gallon) bottle.
    Q112691.jpg

    Bumper Crop pH Down (20 L / 5 gal)

    Q112691
    • The perfect pH adjustment solution!
    • Lowers the pH of the water around plant roots.
    • Helps your plants absorb nutrients.
    • Enhances flower development.
    • Works with any nutrient program.
    • Provides simple and easy pH maintenance.
    • 20 liter (5 gallon) bottle.
    Q112692.jpg

    Bumper Crop pH Up (1 L / 1 qt)

    Q112692
    • The perfect pH adjustment solution!
    • Raises the pH of plant food solutions.
    • Helps your plants absorb nutrients.
    • Enhances flower development.
    • Works with any nutrient program.
    • Provides simple and easy pH maintenance.
    • 1 liter (1 quart) bottle.
    Q112693.jpg

    Bumper Crop pH Up (4 L / 1 gal)

    Q112693
    • The perfect pH adjustment solution!
    • Raises the pH of plant food solutions.
    • Helps your plants absorb nutrients.
    • Enhances flower development.
    • Works with any nutrient program.
    • Provides simple and easy pH maintenance.
    • 4 liter (1 gallon) bottle.
    Q112694.jpg

    Bumper Crop pH Up (20 L / 5 gal)

    Q112694
    • The perfect pH adjustment solution!
    • Raises the pH of plant food solutions.
    • Helps your plants absorb nutrients.
    • Enhances flower development.
    • Works with any nutrient program.
    • Provides simple and easy pH maintenance.
    • 20 liter (5 gallon) bottle.
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