Bluelab pH 40 70 Calibration Solution Kit pH Meter pH Pen Calibration for Balanced Nutrient Solution NIST Traceable Hydroponics Gardening Growing Tents 500 ml 169 Fl Oz Each

Ensures accurate readings Our pH calibration solution helps maintain the accuracy and reliability of a pH pen probe or tester Calibration ensures accurate readings This helps keep the pH level in check for the health of plants swimmers or aquatic life 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 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 Easytouse and long shelf life Our electrolyte solutions are readytouse right out of the bottle saving you time and effort Our pH calibration solutions dont need frequent replacements as they have a long shelf life 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 70 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