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Meter Calibration

  • GH pH 7.0 Calibration Solution 8oz

    This is a brand new 8 ounce bottle of pH 7.0 Calibration Solution. General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH meters. General Hydroponics technicians check each batch to...

    Our Price: $7.95
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  • GH pH 4.01 Calibration Solution 8oz

    This is a brand new 8 ounce bottle of pH 4.01 Calibration Solution. General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH meters. General Hydroponics technicians check each batch to...

    Our Price: $7.95
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  • Bluelab pH Probe KCl Storage Solution

    The perfect solution to store and hydrate your Bluelab pH products. Bluelab knows it is extremely important to care for and store pH probes correctly. pH probes are sensitive glass instruments which age through normal use. The life and performance of pH...

    Our Price: $11.95
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  • HM Digital pH Storage Solution 20 mL

    HM Digital pH Storage Solution is a vital component of pH meter care and maintenance. This potassium chloride solution (with fungicide) not only helps keep the probe clean, but it keeps the probe saturated for best performance.

    Our Price: $1.00
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  • Bluelab EC 2.77 Calibration Solution 250mL

    Calibration and conductivity standard solutions... a must in every grower's toolbox. The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the...

    Our Price: $7.95
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  • Hanna Cleaning Solution 500ml

    Proper maintenance is the key to ensuring the accuracy of any pH tester. Hanna Electrode Cleaning Solution, used at least once per week and as often as once per day, keeps dirt and contaminants from causing incorrect readings. It’s as simple as a...

    Our Price: $19.95
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  • Bluelab 2.77 EC Conductivity Solution, 500 ml

    The 2.77 EC Conductivity solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe. These solutions should be stored in a cool place out of direct sun and heat.

    Our Price: $10.95
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  • Bluelab pH 4 Packet 20ml each

    Bluelab® pH 4.0 Calibration Solution is a must for every grower’s toolbox. This high-quality solution is formulated to hydrate and calibrate probes to ensure that pH meters are taking precise readings and maintaining accuracy. Carton contains...

    Our Price: $1.95
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  • Bluelab pH 7 Packet 20ml each

    Bluelab® pH 7.0 Calibration Solution is a must for every grower’s toolbox. This high-quality solution is formulated to hydrate and calibrate probes to ensure that pH meters are taking precise readings and maintaining accuracy. Carton contains...

    Our Price: $1.95
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  • Hanna GroLine Calibration Solution 20mL packet

    HI50036P is a quick calibration solution for use with Hanna’s GroLine pH and/or EC/TDS meters. Using the Quick Cal function found in compatible meters allows for  a single point calibration for pH and/or conductivity sensors. Each sachet has...

    Our Price: $1.95
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  • Bluelab pH/TDS Probe Care Kit

    The instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution. If...

    Our Price: $22.95
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  • Bluelab pH KCl Storage 250ml

    Manufactured to high laboratory standards, Bluelab® pH Probe KCl Storage Solution is made specifically for use with Bluelab pH products. It is designed to increase response time and maximize the life of Bluelab pH pens and pH probes. For best...

    Our Price: $19.95
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