Nynelly 15 Pack pH Meter Buffer Solution Powder pH 6.86, 4.01, 9.18 for Precise Calibrate pH Meter, pH Calibration Powder Solution, pH Tester Calibration Powder Packets

Easy To Use: Mix the buffer powder with 250 ML distilled water, put the pH meter in the solution and gently stir and wait a few seconds for the result
Accuracy: The accuracy of the pH buffer calibration solution powder is within 0.01 pH units at 25 ° C and can maintain long-term stability
Workas With Any PH Meter: This buffer powder will work with any electronic pH Meter. Ideal for Calibrating
Stays Fresh: Individually wrapped to maintain freshness until use.Produced with premium quality material under strict conditions, pre-measured
Widely Used: 15 pack ph calibration packets: 5 x pH 4.01 buffer powder, 5 x pH 6.86 buffer powder, 5 x pH 9.18 buffer powder. Testing the pH balance of drinking water, swimming pools, aquariums, spas, hydroponics,etc