pH, EC, & TDS Meters

• A simple and reliable tool to measure acidity or alkalinity.
• Provides quick, visual results through an easy-to-read colour change.
• Helps monitor and adjust pH levels for optimal conditions.
• Dip strip and compare colour against chart to determine pH level.

• Two way moisture and pH meter for plant soil testing.
• Measures soil moisture levels to prevent overwatering or underwatering.
• Accurately tests pH levels from 4 to 8.
• No batteries required for simple, reliable operation.
• Suitable for both indoor and outdoor plants.
• Sturdy design built for long term garden use.

• Soil tester for measuring acidity and alkalinity.
• Patented comparator system with colour chart results.
• Includes 10 tests for soil pH measurement.
• Simple steps: sample, mix, add capsule, compare colour.
• Includes recommendations for over 400 plants.
• Helps guide fertilizing and soil condition changes.

• Soil test kit for pH and N, P, K levels.
• 40 tests: 10 each for pH, nitrogen, phosphorus, potash.
• Patented colour comparator capsule system.
• Simple, fast, accurate results with easy use.
• Includes charts for 100+ plants.
• Complete instructions for soil adjustments.

• Soil tester for moisture and pH levels.
• Signals soil moisture level.
• Indicates soil acidity and alkalinity.
• Includes watering needs for many plants.
• No batteries required for operation.
• Simple tool for monitoring soil conditions.

• Compact meter measuring soil, light, and fertility factors.
• Measures sunlight exposure and soil moisture levels.
• Tests soil pH and combined fertility indicators.
• Designed for indoor and outdoor plant use.
• Multi-function tool for plant growth monitoring.
• Helps create ideal growing environment for plants.

• Digital tool for measuring soil conditions.
• Measures soil pH, fertility, and temperature.
• Simple and easy to use.
• Provides clear digital readings.
• Helps monitor key soil factors.
• Supports better gardening decisions.

• Soil pH meter for indoor and outdoor use.
• Measures soil acidity/alkalinity from 3.5 - 9.
• Instant readout with large, easy display.
• 10.16 cm (4 in) tethered bi-metallic probe.
• No batteries, no chemicals or litmus paper.
• Includes pH guide for various plants.

• Digital soil tester for acidity and alkalinity.
• Measures pH range from 3.5 to 9.0.
• Instant, easy-to-read digital output display.
• Use for veggies, flowers, fruit, and landscape plants.
• Includes pH preferences for 400+ plants.
• Batteries required and included.

• Digital meter for measuring soil pH in garden soil.
• Instant digital read-out, easy-to-read display.
• Measures pH from 3.5 to 9.0.
• Bi-metallic probe for accurate soil readings.
• Includes pH preferences for 400+ plants.
• Batteries included with instructions and tips.

• Soil testing kit for food plots and garden use.
• Includes 20 tests: 5 each for pH, N, P and K.
• Simple DIY method with quick, accurate results.
• No mail-in testing required.
• Includes instructions and fertilization guidelines.
• pH preference list for 450+ plants included.

• Digital soil meter for measuring pH levels.
• Helps maximize food plot production.
• Accurate digital readout with instant results.
• Measures soil acidity and alkalinity.
• 15 cm (6 in) bi-metallic probe.
• No batteries required; easy to use repeatedly.

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 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 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 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 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

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.

• 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).

• 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).

• 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).

• 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.

• 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.

• 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.

• 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 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

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

• 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.