pH, EC, & TDS Meters

Wwe 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 monitoring solutions, you can effortlessly maintain optimal parameters for your plants, driving healthy growth and maximizing yields.

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GH pH Down Liquid Quart (12/Cs)

GH pH Down Liquid Quart (12/Cs)

Q113153
The acid formulation uses phosphoric acid to lower the pH to the proper level.
GH pH Test Indicator 8 oz

GH pH Test Indicator 8 oz

Q113155
General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test vial. Many experienced growers prefer our pH Test Kit to expensive electronic meters because of its reliability and ease of use, which are important factors when the health of a valuable crop is at stake. Use 3 drops per 5ml of solution.
pH Up (1 L / 1 qt)

pH Up (1 L / 1 qt)

Q100345
  • Raises nutrient solution pH for optimal plant growth.
  • Helps growers maintain pH levels between 5.5 and 6.5, ideal for most plants.
  • Easy-to-use: add drops as needed after nutrient application.
  • Made with high-quality ingredients meeting safety standards.
  • Potent and effective in small doses.
  • 1 liter (1 quart) bottle.
pH Up (4 L / 1 gal)

pH Up (4 L / 1 gal)

Q100346
  • Raises nutrient solution pH for optimal plant growth.
  • Helps growers maintain pH levels between 5.5 and 6.5, ideal for most plants.
  • Easy-to-use: add drops as needed after nutrient application.
  • Made with high-quality ingredients meeting safety standards.
  • Potent and effective in small doses.
  • 4 liter (1 gallon) bottle.
pH Down (1 L / 1 qt)

pH Down (1 L / 1 qt)

Q100347
  • Lowers nutrient solution pH for optimal plant growth.
  • Helps growers maintain pH levels between 5.5 and 6.5, ideal for most plants.
  • Easy-to-use: add drops as needed after nutrient application.
  • Made with high-quality ingredients meeting safety standards.
  • Potent and effective in small doses.
  • 1 liter (1 quart) bottle.
pH Down (4 L / 1 gal)

pH Down (4 L / 1 gal)

Q100348
  • Lowers nutrient solution pH for optimal plant growth.
  • Helps growers maintain pH levels between 5.5 and 6.5, ideal for most plants.
  • Easy-to-use: add drops as needed after nutrient application.
  • Made with high-quality ingredients meeting safety standards.
  • Potent and effective in small doses.
  • 4 liter (1 gallon) bottle.
General Hydroponics PRO pH Up 6 gal

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
General Hydroponics PRO pH Down 2.5 gal

General Hydroponics PRO pH Down 2.5 gal

Q100377

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
GH pH Down Liquid Quart

GH pH Down Liquid Quart

Q100382

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

Earth Juice Natural Up Powder (0.90 kg / 2 lb)

Earth Juice Natural Up Powder (0.90 kg / 2 lb)

Q100385
  • Raises pH of liquid plant fertilizers and foliar spray solutions.
  • Facilitates more effective nutrient absorption by plants.
  • Crystalline form ensures easy dissolution.
  • Derived from a natural source.
  • 900 grams (2 pounds).
Earth Juice Natural Down Powder (0.72 kg / 1.6 lb)

Earth Juice Natural Down Powder (0.72 kg / 1.6 lb)

Q100387
  • Lowers pH of liquid plant fertilizers and foliar spray solutions.
  • Facilitates more effective nutrient absorption by plants.
  • Crystalline form ensures easy dissolution.
  • Derived from a natural source.
  • 720 grams (1.6 pounds).
Earth Juice Natural Up Powder (4.5 kg / 10 lb)

Earth Juice Natural Up Powder (4.5 kg / 10 lb)

Q100386
  • Raises pH of liquid plant fertilizers and foliar spray solutions.
  • Facilitates more effective nutrient absorption by plants.
  • Crystalline form ensures easy dissolution.
  • Derived from a natural source.
  • 4.5 kilograms (10 pounds).
Plantchek THC Quick Test (3-Test Sample Pack)

Plantchek THC Quick Test (3-Test Sample Pack)

Q003004
  • Easy, accurate, and affordable testing of THC.
  • Test for THC content in under 10 minutes using dual-color technology.
  • Kit contains analytical tools required for testing THC in flower, oil, extracts, or concentrates.
  • Made in Canada.
  • Three (3) test sample pack.
Plantchek CBD Quick Test (3-Test Sample Pack)

Plantchek CBD Quick Test (3-Test Sample Pack)

Q003005
  • Easy, accurate, and affordable testing of CBD.
  • Test for CBD content in under 10 minutes using colorimetric strip technology.
  • Kit contains analytical tools required for testing CBD in flower, oil, extracts, or concentrates.
  • Three (3) test sample pack.
Bumper Crop pH Down (4 L / 1 gal)

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.
Bumper Crop pH Down (20 L / 5 gal)

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.
Bumper Crop pH Up (1 L / 1 qt)

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.
Bumper Crop pH Up (20 L / 5 gal)

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.
Mondi Mini Greenhouse Thermo-Hygrometer Green

Mondi Mini Greenhouse Thermo-Hygrometer Green

Q101317
  • Patented design, precisely monitors temperature and humidity levels inside the Mondi Mini Greenhouse or other environments.
  • Comes in Black, Green, Orange, and White.
  • 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.
  • Use with Mondi Mini Greenhouse.
Mondi Mini Greenhouse Thermo-Hygrometer Orange

Mondi Mini Greenhouse Thermo-Hygrometer Orange

Q101318
  • Patented design, precisely monitors temperature and humidity levels inside the Mondi Mini Greenhouse or other environments.
  • Comes in Black, Green, Orange, and White.
  • 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.
  • Use with Mondi Mini Greenhouse.
Mondi Mini Greenhouse Thermo-Hygrometer White

Mondi Mini Greenhouse Thermo-Hygrometer White

Q101319
  • Patented design, precisely monitors temperature and humidity levels inside the Mondi Mini Greenhouse or other environments.
  • Comes in Black, Green, Orange, and White.
  • 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.
  • Use with Mondi Mini Greenhouse.
Digital Min/Max 303C Temperature and Humidity Meter

Digital Min/Max 303C Temperature and Humidity Meter

Q101320
  • Indoor/outdoor thermo-hygrometer with clock.
  • Separate display for time, humidity and temperature.
  • Memory for the highest and lowest temperature and humidity.
  • Designed to stand or to be hung.
  • Indoor/outdoor temperature range: -50°C (-58°F) - +70°C (+158°F).
  • Humidity measure range: 20% RH - 90% RH.
  • Battery included.
Digital Min/Max 303 Temperature and Humidity Meter

Digital Min/Max 303 Temperature and Humidity Meter

Q101321
  • Indoor thermo-hygrometer.
  • Separate display for humidity and temperature.
  • Memory for the highest and lowest temperature and humidity.
  • Designed to stand or to be hung.
  • Indoor temperature range: -20°C (-4°F) to +50°C (+122°F).
  • Humidity measure range 10% RH - 95% RH.
  • Battery included.
Digital Min/Max 302 Temperature and Humidity Meter

Digital Min/Max 302 Temperature and Humidity Meter

Q101322
  • Indoor thermo-hygrometer with display clock.
  • Separate display for time, humidity, and temperature.
  • Memory for the highest and lowest temperature and humidity.
  • Designed to stand or to be hung.
  • Indoor temperature range: -20°C (-4°F) to +50°C (+122°F).
  • Humidity measure range 10% RH - 95% RH.
  • Battery included.
Latex Gloves, Small (100 pcs)

Latex Gloves, Small (100 pcs)

Q101323

These small-sized latex gloves are suitable for gardening, maintenance, and various horticultural applications.

Nitrile Gloves, Small (100 pcs)

Nitrile Gloves, Small (100 pcs)

Q101327

Nitrile Gloves are made of synthetic latex. They contain no latex proteins and offer excellent resistance to punctures and tears. Nitrile gloves are three times more puncture resistant than rubber and can be used to offer superior resistance to many types of chemicals. Unlike latex gloves, nitrile gloves have low resistance to friction and are very easy to slide on.

Nitrile Gloves, Large (100 pcs)

Nitrile Gloves, Large (100 pcs)

Q101329

Nitrile Gloves are made of synthetic latex. They contain no latex proteins and offer excellent resistance to punctures and tears. Nitrile gloves are three times more puncture resistant than rubber and can be used to offer superior resistance to many types of chemicals. Unlike latex gloves, nitrile gloves have low resistance to friction and are very easy to slide on.

Picture of Latex Gloves, Small (1 pair)

Latex Gloves, Small (1 pair)

Q101331

These small-sized latex gloves are suitable for gardening, maintenance, and various horticultural applications.

Latex Work Gloves, Medium (10 pairs)

Latex Work Gloves, Medium (10 pairs)

Q101332
  • Black latex coating on palms and fingers for enhanced grip.
  • Red textile backing for breathability and flexibility.
  • Provides resistance to wear and tear in rough conditions.
  • Snug fit at wrist to prevent debris entry.
  • Suitable for gardening, landscaping, and outdoor tasks.
  • Size: Medium.
Latex Work Gloves, Large (10 pairs)

Latex Work Gloves, Large (10 pairs)

Q101333
  • Black latex coating on palms and fingers for enhanced grip.
  • Red textile backing for breathability and flexibility.
  • Provides resistance to wear and tear in rough conditions.
  • Snug fit at wrist to prevent debris entry.
  • Suitable for gardening, landscaping, and outdoor tasks.
  • Size: Large.
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