DuvinDD 18 Pack pH Meter Buffer Solution Powder 6.86/4.00/9.18, pH Calibration Solution Packets for Precise PH Meter
Suitable with most of pH meters, Ideal for Calibrating.
pH buffer calibration solution powder accuracy is ±0.01pH, accurate and precise.
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.
18 pack ph calibration packets: 6*ph 6.86 packets, 6*ph 4.00 packets, 6*ph 9.18 packets, cost-effective and flexible for using.
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