pH / EC / TDS Meters & Solutions

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

• Revolutionary and unique propagation product.
• Precisely monitors temperature and humidity levels inside the Mondi Mini Greenhouse.
• Eliminates the need to open the dome for readings.
• Provides growers with real-time temperature and humidity data.
• Ideal for successful large-scale propagation of seedlings and cuttings.
• Durable construction ensures long-term use.
• Indoor temperature measuring range: -9.9°C to 50°C (15.8°F to 122°F)
• Indoor humidity measuring range: 25% RH to 98% RH
• Displays current temperature and humidity, as well as min/max temperature and humidity history.
• Celsius (°C) and fahrenheit (°F).
• Made from premium Japanese components and technology.
• Includes: 8 millimeter (0.315 inch) proprietary drill piece, placement sticker, and product information guide.
• Power: L1154H Battery x 1 piece (included).
• Width: 5.1 inches (130 millimeters).
• Height: 1.1 inches (30 millimeters).
• Color: black.

• Revolutionary and unique propagation product.
• Precisely monitors temperature and humidity levels inside the Mondi Mini Greenhouse.
• Eliminates the need to open the dome for readings.
• Provides growers with real-time temperature and humidity data.
• Ideal for successful large-scale propagation of seedlings and cuttings.
• Durable construction ensures long-term use.
• Indoor temperature measuring range: -9.9°C to 50°C (15.8°F to 122°F)
• Indoor humidity measuring range: 25% RH to 98% RH
• Displays current temperature and humidity, as well as min/max temperature and humidity history.
• Celsius (°C) and fahrenheit (°F).
• Made from premium Japanese components and technology.
• Includes: 8 millimeter (0.315 inch) proprietary drill piece, placement sticker, and product information guide.
• Power: L1154H Battery x 1 piece (included).
• Width: 5.1 inches (130 millimeters).
• Height: 1.1 inches (30 millimeters).
• Color: white.

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

• 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).

• Revolutionary and unique propagation product.
• Precisely monitors temperature and humidity levels inside the Mondi Mini Greenhouse.
• Eliminates the need to open the dome for readings.
• Provides growers with real-time temperature and humidity data.
• Ideal for successful large-scale propagation of seedlings and cuttings.
• Durable construction ensures long-term use.
• Indoor temperature measuring range: -9.9°C to 50°C (15.8°F to 122°F)
• Indoor humidity measuring range: 25% RH to 98% RH
• Displays current temperature and humidity, as well as min/max temperature and humidity history.
• Celsius (°C) and fahrenheit (°F).
• Made from premium Japanese components and technology.
• Includes: 8 millimeter (0.315 inch) proprietary drill piece, placement sticker, and product information guide.
• Power: L1154H Battery x 1 piece (included).
• Width: 5.1 inches (130 millimeters).
• Height: 1.1 inches (30 millimeters).
• Color: orange.

• 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.

• 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.

• 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.

• 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.

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.

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

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

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

• 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.

• 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.

• 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.

• 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.

• 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.

• 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.

• 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.

• 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.

• 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.

• 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.

• 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.