DuvinDD 20 Pack pH Calibration Solution Packets 6.86/4.01 for Accurate and Easy Calibration of pH Meter, pH Standard Buffer Powder Solution

DuvinDD 20 Pack pH Calibration Solution Packets 6.86/4.01 for Accurate and Easy Calibration of pH Meter, pH Standard Buffer Powder Solution

• High Accuracy: pH meter calibration solution accuracy is plus or minus 0.01pH. Sealed by durable moisture-proof individual packet to maintain freshness until use
• Easy to use: pH buffer powder is save time and money. 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
• ph Standard Buffer Powder: Works with All electronic pH meters/ph tester. pH calibration powder is produced with premium quality material under strict conditions
• Good Quality: Produced with premium material. Sealed by durable moisture-proof individual packet for long-term use
• 20 Pack ph calibration packets: 10* pH 4.01 Solution powder, 10*pH 6.86 Solution powder, cost-effective and flexible for using