Bluelab pH Calibration Solution Kit (pH 4.0 & 7.0) - NIST Traceable for Hydroponics, Gardening & Growing Tents (500 ml/16.9 Fl Oz)

About this item

• Improves the longevity of the pH pen or tester - Regular calibration helps extend the life of your pH meters by maintaining their performance. Useful for providing accurate pH in hydroponics, aquariums, swimming pools, or gardens.
• How to calibrate - Make sure your pH pen or probe is clean and hydrated. Turn it on. Place the probe tip in a fresh pH 7.0 calibration solution. Rinse the pen or probe tip in clean tap water and shake off the excess. Calibrate to pH 4. A calibration confirmation will appear to show a successful calibration. Recalibrate if the symbol disappears.
• Guarantees precise measurements - Our pH calibration solution is designed to uphold the precision and dependability of a pH pen, probe, or tester. By calibrating these devices, you can achieve precise measurements. This is essential for monitoring pH levels, which is crucial for the well-being of plants, swimmers, or aquatic organisms.
• NIST Traceable - Our pH calibration solutions are NIST traceable and meet the highest quality standards. This set includes two crucial pH levels, pH 4 and pH 7, allowing you to calibrate a wide range of pH instruments.
• Easy-to-use and long shelf life - Our electrolyte solutions are ready-to-use right out of the bottle, saving you time and effort. Our pH calibration solutions don't need frequent replacements as they have a long shelf life.