3-Pack pH Buffer Solution Powder (4.01, 6.86, 9.18) for Digital pH Meter Calibration – 250ml per Sachet – Accuracy Testing Kit

Ensure your pH meter is always accurate with our 3-Pack pH Buffer Powder Calibration Kit. Whether you are testing water in your aquarium, swimming pool, laboratory, or hydroponic setup, a calibrated meter is the only way to get reliable results. This kit provides the industry-standard calibration points needed to keep your digital testers performing at their best.
Maintaining the precision of your digital pH tester is essential for any water quality task. This set includes three individual sachets of buffer powder: pH 4.01 (Acidic), pH 6.86 (Neutral), and pH 9.18 (Alkaline).

Each sachet is designed to be mixed with 250ml of distilled or deionized water to create a high-precision calibration solution. Unlike pre-mixed liquid solutions that can expire or leak during shipping, these powder packets have a long shelf life and are easy to store until you need them. They are optimized for use at 25°C to ensure professional-grade accuracy every time you calibrate.