12 Pack pH Meter Buffer Solution Powder 6.86/4.01/9.18 for Precise pH Meter, pH Calibration Solution Powder Packets
High Accuracy: pH tester calibration powder solution accuracy is ±0.01pH.
Compatibility: Suitable with most of pH meters, Ideal for Calibrating.
Individually wrapped to maintain freshness until use. Made with qualify materia.
Easy to use: Mix the buffer powder with 250ML distilled water, put the pH meter in the solution and gently stir and wait a few seconds for the result.
12 pack: 4 packets of pH 6.86 Solution powder, 4 packets of pH 4.01 Solution powder, 4 packets of pH 9.18 Solution powder, cost-effective and flexible for using.
2.4 x 3 x 0.05 inches; 1.13 ounces
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