Bluelab pH 4 Solution ensures that pH meters are providing accurate readings. Bluelab pH 4 solution is colored red to easily tell apart from yellow pH 7 solution. 

Price: $11.99

Bluelab pH 7 Solution ensures that pH meters are giving accurate readings. Bluelab pH 7 solution is colored yellow to easily differentiate between pH 4 solution (red). 

Price: $11.99

Bluelab EC Solution is used as a reference or checking solution to ensure the cleanliness and proper functionality of EC/CF probes. If you are using a meter besides Bluelab, please ensure that your meter is compatible with this solution type.

Bluelab's EC/CF equipment does ..

Price: $11.99

Prevent inaccurate pH readings by regularly calibrating pH meters with Sunleaves pH 4 and 7 Buffer Solutions. This dry mix decreases risk of contamination and may be stored indefinitely. The convenient bottle with twist-on cap includes 6 100ml packets of pH 4 and 6 100ml packets of pH 7 solutio..

Price: $14.99

Routine and thorough maintenance of your Bluelab meters and instruments is the key to accurate readings and calculations. The Bluelab pH Cleaning and Calibration kit comes equipped with everything you need to clean your probe: instructions, 500ml of pH4 and pH7 Calibration solutions, decanter v..

Price: $34.99

The TDS Calibration Solution (HI 7032, 1382 ppm, 230 ml) by Hanna Instruments will keep the TDS meter on your Hanna Instruments Combo Waterproof Tester properly calibrated, which is crucial for producing accurate readings. The Hanna Instruments TDS Calibration Solution (HI 7032, 1382 ppm, 230 m..

Price: $18.99

Hanna Instruments TDS Calibration Solution (HI 70442, 1500 ppm, 230 ml) is a premium-quality conductivity solution. Precision results and readings are certain when you calibrate your TDS instruments with this NIST999 potassium chloride and deionized water conductivity solution. Hanna Instrumen..

Price: $17.99

The Hanna Instruments pH 7 Solution (HI 7007, 230ml) loves all pH testers, produced by Hanna Instruments or otherwise. You can use the pH 7 Solution (HI 7007, 230ml) for your pH-calibration needs on just about any pH Tester, including the the Champ pH Tester and the GroCheck Combo.

Price: $18.99

Apply the Hanna Instruments PET EC Solution (HI 7031, 230 ml) and in moments your meter is properly calibrated. The FDA-approved opaque bottle in which the PET EC Solution comes is designed to prevent light damage.

Price: $18.99

Hanna Instruments developed the Electrode Storage Solution (HI 70300, 500 ml) as an easy and effective way of keeping the electrodes on Hanna Instrument testers from drying out. Place a few drops of the Hanna Instruments Electrode Storage Solution inside the storage cap and you're job is f..

Price: $19.99

Invest in cleanliness with the Hanna Electrode Cleaning Solution (HI 7061, 230 ml). Soak your Hanna Instrument in the Hanna Electrode Cleanign Solution once a week, or once a day if you're really on top of your game, in order to keep the electrode on your Hanna Instrument clear of impuriti..

Price: $18.99

Hanna has created this Cal-Check Solution to make it easy to make sure that the electrode on your Hanna instrument is operating correctly. Simply apply the solution, press the Cal-Check button, and your Hanna Instrument will run a diagnostic and return the results to you.

Price: $3.50

The Bluelab Conductivity Probe Cleaning Kit sounds like some terrible contraption out of a sci-fi movie, but it actually serves the very practical purpose of ensuring that the readings and calculations of your Bluelab instruments are accurate. It is vital that you keep the area around your Blue..

Price: $24.50