12,880 S/cm (mho/cm)

Standards have KCl, NaCl and 442 conversions printed on the bottle for ease of use. Temperature corrections are printed on the bottle, with the certified values listed in the tables, accurate to within ±0.5% and are referenced to 25°C.

General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used.

General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used.

This item is sachets

Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces.

Gardeners can conveniently test their moisture, light, and pH levels with the handy ActiveAir 3-Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moist), light readings range from 0 (low light) to 2000 (very strong light), and pH readings between pH 0 (acidic) and pH 10 (basic) are represented. The durable, easy-to-read tester is suitable for indoors or out and needs no batteries to operate.

DO NOT LEAVE IN SOIL. CLEAN PRONGS AFTER EACH USE.

Product Information
Acidity versus alkalinity are key factors in your crop’s water and root zone, as measured by pH. If you have too high or too low pH, your crops cannot uptake nutrients, and may well be damaged or even killed. That’s why smart growers daily monitor and adjust optimum pH levels for hydroponics, sphagnum moss, coco coir, rockwool, aeroponics, soil, and other types of plant growth media. Some companies make cheap, inferior pH adjustment products that never achieve consistent results; some of those products contain harmful materials. Advanced Nutrients pH products are carefully-manufactured pure concentrates that are pharmaceutical grade.

Why are the containers of Advanced Nutrients pH adjusters so much heavier than the competitions?

It's true! Pick up a 4L of Advanced Nutrients pH Up in one hand and a 4L bottle of our competitors in the other and you will quickly be able to tell which one is the highest quality. Most nutrient companies that sell liquid pH adjustment products dilute the concentration in order to squeeze a little more money out of the grower. Advanced Nutrients is committed to supplying growers with absolutely superlative products and subsequently, most of our products are far more concentrated that the competitions.

Substantial saving for the end customer compared to competitors pH adjusters.

WARNING: DO NOT STORE pH UP AND pH Down SIDE BY SIDE!

Product Information
Acidity versus alkalinity are key factors in your crop’s water and root zone, as measured by pH. If you have too high or too low pH, your crops cannot uptake nutrients, and may well be damaged or even killed. That’s why smart growers daily monitor and adjust optimum pH levels for hydroponics, sphagnum moss, coco coir, rockwool, aeroponics, soil, and other types of plant growth media. Some companies make cheap, inferior pH adjustment products that never achieve consistent results; some of those products contain harmful materials. Advanced Nutrients pH products are carefully-manufactured pure concentrates that are pharmaceutical grade.

Why are the containers of Advanced Nutrients pH adjusters so much heavier than the competitions?

It's true! Pick up a 4L of Advanced Nutrients pH Up in one hand and a 4L bottle of our competitors in the other and you will quickly be able to tell which one is the highest quality. Most nutrient companies that sell liquid pH adjustment products dilute the concentration in order to squeeze a little more money out of the grower. Advanced Nutrients is committed to supplying growers with absolutely superlative products and subsequently, most of our products are far more concentrated that the competitions.

Substantial saving for the end customer compared to competitors pH adjusters.

WARNING: DO NOT STORE pH UP AND pH Down SIDE BY SIDE!

Product Information
Acidity versus alkalinity are key factors in your crop’s water and root zone, as measured by pH. If you have too high or too low pH, your crops cannot uptake nutrients, and may well be damaged or even killed. That’s why smart growers daily monitor and adjust optimum pH levels for hydroponics, sphagnum moss, coco coir, rockwool, aeroponics, soil, and other types of plant growth media. Some companies make cheap, inferior pH adjustment products that never achieve consistent results; some of those products contain harmful materials. Advanced Nutrients pH products are carefully-manufactured pure concentrates that are pharmaceutical grade.

Why are the containers of Advanced Nutrients pH adjusters so much heavier than the competitions?

It's true! Pick up a 4L of Advanced Nutrients pH Up in one hand and a 4L bottle of our competitors in the other and you will quickly be able to tell which one is the highest quality. Most nutrient companies that sell liquid pH adjustment products dilute the concentration in order to squeeze a little more money out of the grower. Advanced Nutrients is committed to supplying growers with absolutely superlative products and subsequently, most of our products are far more concentrated that the competitions.

Substantial saving for the end customer compared to competitors pH adjusters.

WARNING: DO NOT STORE pH UP AND pH Down SIDE BY SIDE!

Product Information
Acidity versus alkalinity are key factors in your crop’s water and root zone, as measured by pH. If you have too high or too low pH, your crops cannot uptake nutrients, and may well be damaged or even killed. That’s why smart growers daily monitor and adjust optimum pH levels for hydroponics, sphagnum moss, coco coir, rockwool, aeroponics, soil, and other types of plant growth media. Some companies make cheap, inferior pH adjustment products that never achieve consistent results; some of those products contain harmful materials. Advanced Nutrients pH products are carefully-manufactured pure concentrates that are pharmaceutical grade.

Why are the containers of Advanced Nutrients pH adjusters so much heavier than the competitions?

It's true! Pick up a 4L of Advanced Nutrients pH Up in one hand and a 4L bottle of our competitors in the other and you will quickly be able to tell which one is the highest quality. Most nutrient companies that sell liquid pH adjustment products dilute the concentration in order to squeeze a little more money out of the grower. Advanced Nutrients is committed to supplying growers with absolutely superlative products and subsequently, most of our products are far more concentrated that the competitions.

Substantial saving for the end customer compared to competitors pH adjusters.

WARNING: DO NOT STORE pH UP AND pH Down SIDE BY SIDE!

FEATURES

• Measures total dissolved solids (TDS) and temperature.
• Automatic Temperature Compensation (ATC)
• Water-resistant housing
• Measurement Range: 0-5000 ppm
• Digital Calibration (push button)
• Auto-off function, data-hold function and low-battery indicator.
• Display: large and easy-to-read LCD screen includes simultaneous temperature reading.
• The AquaPro is calibrated with a 342 ppm NaCl solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver.
• Magnetic back
• Includes a cap and batteries.

Contains four (4) batteries per pack, 6 packs per case.

The Bluelab Calibration Solutions are a very necessary part of a growers toolbox. These solutions are manufactured specific to the calibration process and referenced to high laboratory standards by Bluelab. They are required for the calibration of pH meters, pH monitors and controllers. Regular cleaning and calibrating of pH measuring equipment ensures accurate readings. Bluelab's EC/CF equipment does not need calibrating, as they are all factory calibrated at Bluelab. The CF27.7 solution is used as a reference to ensure you have adequately cleaned the EC/CF probe.

The Bluelab Calibration Solutions are a very necessary part of a growers toolbox. These solutions are manufactured specific to the calibration process and referenced to high laboratory standards by Bluelab. They are required for the calibration of pH meters, pH monitors and controllers. Regular cleaning and calibrating of pH measuring equipment ensures accurate readings. Bluelab's EC/CF equipment does not need calibrating, as they are all factory calibrated at Bluelab. The CF27.7 solution is used as a reference to ensure you have adequately cleaned the EC/CF probe.

The Bluelab Calibration Solutions are a very necessary part of a growers toolbox. These solutions are manufactured specific to the calibration process and referenced to high laboratory standards by Bluelab. They are required for the calibration of pH meters, pH monitors and controllers. Regular cleaning and calibrating of pH measuring equipment ensures accurate readings. Bluelab's EC/CF equipment does not need calibrating, as they are all factory calibrated at Bluelab. The CF27.7 solution is used as a reference to ensure you have adequately cleaned the EC/CF probe.

The Bluelab Calibration Solutions are a very necessary part of a growers toolbox. These solutions are manufactured specific to the calibration process and referenced to high laboratory standards by Bluelab. They are required for the calibration of pH meters, pH monitors and controllers. Regular cleaning and calibrating of pH measuring equipment ensures accurate readings. Bluelab's EC/CF equipment does not need calibrating, as they are all factory calibrated at Bluelab. The CF27.7 solution is used as a reference to ensure you have adequately cleaned the EC/CF probe.