Metering, Monitoring, & Testing

• 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 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!
• 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.
• 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.
• 4 liter (1 gallon) bottle.

• A smart sensor designed to accurately give climate condition updates to maintain the ideal environment.
• Corded probe provides fast-refresh climate readings and daily highs and lows of spot, remote locations.
• Connect to AC Infinity's app via Bluetooth to access remote temperature and humidity monitoring and alarms.
• Backlit LCD screen with desktop, wall, or magnetic mounting options to place and display anywhere.
• Fit for use in many home and grow settings like greenhouses, grow tents, guitar rooms, and basements.

• A smart sensor designed to accurately give climate condition updates to maintain the ideal environment.
• Built-in sensor provides fast-refresh readings of temperature and humidity conditions and daily highs and lows.
• Connect to the AC Infinity app via Bluetooth for remote climate monitoring, alarms, data graphs, and CSV charts.
• Backlit LCD screen with desktop, wall, or magnetic mounting options to place and display anywhere.
• Fit for use in many home and grow settings like greenhouses, grow tents, guitar rooms, and basements.

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

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.

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

• 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.

• Designed for transporting and storing Apogee meters, sensors, and accessories.
• Does not accommodate the AM-320 underwater wand.
• Compatible with the AM-310 telescopic wand (not recommended for underwater use).
• 11 x 9 x 3.5 inches (28 x 23 x 9 centimeters).

• Essential for downloading data from handheld meters to a computer.
• Cable contains electronics to convert meter signal to USB signal recognized by computer.
• ApogeeAMS software included on flash drive.
• Software compatible with Windows (XP and later) and Mac (10.10 and later) systems.

• Measures photosynthetically active radiation.
• Hand-held meter displays and stores measurements.
• Sensor features blue-enhanced silicon photodiode and custom optical filters.
• Designed for PPFD measurement in various environments: outdoor, greenhouses, growth chambers.
• Ideal for aquatic environments like saltwater aquariums for coral growth.
• Features sample and log modes.
• Sample mode records up to 99 manual measurements.
• Log mode averages measurements every 30 minutes.
• Data can be reviewed on LCD or downloaded to a computer.
• Requires AC-100 communication cable and ApogeeAMS software for computer download.
• 6.5 foot (2 meter) cable lead.

• Compatible with Apogee Instruments solar radiation sensors (excluding field spectroradiometers).
• Designed for flat surfaces or mounting.
• Integrated bubble level ensures sensor levelness for proper installation.
• Not compatible with AL-120 mounting system.

• A soft PVC stabilizing platform.
• Features a counter-sunk hole for attachment of Apogee light sensor heads.
• Designed for sitting on tables and other surfaces.
• Keeps the sensor upright but doesn't guarantee levelness.
• For perfect leveling, use AL-120 mounting bracket with leveling plate.
• Included with purchase of µCache (AT-100).

• Telescopic wand with mounting fixture at end.
• Extendable to 33 inches (84 centimeters).
• Facilitates sensor placement in hard-to-reach areas.
• Two mounting holes for various sensor diameters.
• Not suitable for wet environments.
• For freshwater and saltwater, use AM-320 wand.

• Patented chlorophyll concentration meter.
• Measures and displays chlorophyll concentration from intact leaf samples.
• Does not damage plant material.
• Applications: assessment of nutrient status, fertilizer requirements, stress evaluation, harvest optimization.
• Calibrated in units of µmol of chlorophyll per m2.
• Also outputs relative units (CCI or SPAD).

• Neoprene protective pouch.
• Safely stores Apogee meters, microCache devices, and sensors.
• Water-resistant.
• Zippered closure.
• 5 x 8" x 1 inches (13 x 20 x 3 centimeters).

• Specialized photobiology spectroradiometer from 380 to 780 nm.
• Small and lightweight, with a rugged housing and minimal moving parts.
• Self-powered to take measurements anywhere, and the unit can store measurements for dowloading to a PC later.
• Measurement of spectral output from radiation sources used for growing in greenhouses, growth chambers, etc.
• Measurement of solar spectra with changing atmospheric conditions.
• Measurement of spectral reflectance on stationary (e.g., agricultural or ecological weather stations and flux towers), and mobile (e.g., plant phenotyping) platforms.