Calibration powder for accurate results: Calibration powder for pH meter to achieve precise measurement results For many buffer solutions: The set includes 5 sets of buffer solutions for pH values 4.00, 6.86 and 9.18 for a total of 15 calibrations Easy to use: the powders can be easily dissolved in water to prepare the desired buffer solutions. One pack per 250ml for quick calibration. Versatile: the calibration powder is suitable for all standard pH meters and measuring devices pH strips included: pH test strips are also included to quickly check the pH value
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