Metering, Monitoring, & Testing

• 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.

• P2-141 microCache and PAR-FAR monitoring package.
• Includes S2-141-SS PAR-FAR sensor with 11.8 inch cable and MicroCache Bluetooth micro-logger.
• Powerful tool for monitoring photosynthetically active radiation.
• Research-grade accuracy for optimal plant growth.
• S2-141-SS PAR-FAR sensor measures PAR (PPFD) and far-red outputs.
• AT-100 microCache micro-logger collects over 400,000 data points.
• Free ApogeeConnect app for real-time measurements.
• Monitor and graph daily light integrals; download datasets.
• Custom datalogging intervals.
• Assure photoperiods.

• 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.

• 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.

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.

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.

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.

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.

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.

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.

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.

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.

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

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

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.

• Monitor and control moisture levels.
• Manage fresh air ventilation.
• Central fan integration.
• A/C sensor activates or deactivates the dehumidifier.
• High temperature cutout.
• Dry out cycle timer.
• Auto reboot.
• Ventilation options.

• 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.

• 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.

• Desktop CO₂ monitor for detecting CO2, temperature, and humidity.
• Smart, compact, and easy to use for ambient air monitoring.
• Green back-lit LCD display for easy nighttime viewing.
• Independent CO₂, RH, and temperature readings shown on screen.
• Continuously records data every 5 seconds to included microSD card.
• Records and exports 1 year of environmental data.
• Data converts to Microsoft Excel format for easy review.
• Displays max and min readings across multiple zoom levels.

• Digital environmental controller for temperature, humidity, and timing control.
• Three digital screens display temperature, humidity, and cycle countdown.
• Four outlets control heating, cooling, humidity, and a cycle-timed device.
• Separate day and night set points for temperature and humidity control.
• Cycle timer outlet supports day only, night only, or 24-hour modes.
• Remote probe with photocell reads temperature, humidity, and daylight.
• Records high and low levels of temperature and humidity.
• ETL-listed controller with LED mode indicators and power-failure protection.

• CO₂ monitor and controller for controlling and recording CO₂ levels.
• Simple and affordable way to monitor grow room CO₂ levels.
• Tracks CO2 trends over minutes, hours, days, or 7 days.
• Fully customizable CO₂ setpoint and ppm deadband.
• Trend Chart records CO₂ levels per minute, hour, day, and week.
• Adjustable zoom levels allow tracing ppm changes over time.
• Remote CO₂ sensor probe with 4.5 m (15 ft) data cable.
• Low drift NDIR sensor provides precise CO₂ ppm readings.
• Amperage/wattage: 15A max/120V

• CO₂ regulator and solenoid system for controlled plant growth enhancement.
• Programmable timer automatically maintains ideal CO₂ levels.
• Delivers adjustable output from 1-20 cu. ft. per hour.
• User-friendly design that is easy to set up and operate.

• Indoor/outdoor digital thermometer with built-in hygrometer.
• Large display shows current temperature and humidity readings.
• Remote probe measures a second temperature simultaneously.
• Records high and low temperature and humidity levels for tracking.
• 3-meter (10 ft) sensor for temperature reading only.
• Relative humidity sensor located on side of unit.
• Alarm clock function at 12 and 24 hours.

• Digital hygro-thermometer for monitoring temperature and humidity levels.
• Large LCD jumbo display allows easy reading from a distance.
• Extremely accurate readings for reliable grow room monitoring.
• Displays current, high, and low temperature and humidity memory.
• Indoor and outdoor temperature readings with auto-switch display.
• Includes a 3 meter (10 ft) remote temperature probe for flexible placement.
• Multiple mounting options: tabletop display or wall-mounted use.
• Built-in alarm clock with 12- or 24-hour time format.