pH METER MAINTENANCE TRI-PACK (pH4.01 and pH7.01 and ESS) 8 OZ size

This handy kit is everything you need to calibrate your pH meter and the solution to store your electrode between use.

pH CALIBRATION BUFFERS - pH 4.01 and 7.01 twin paks provides accurate calibration across the critical scale for agricultural nutrient solutions. Suitable for any brand or type of pH meter.

MAINTENANCE SOLUTIONS - for maximum life and accuracy pH electrodes should be stored between use in a solution with the same osmotic potential as the reference solution within the electrode membrane. Use the ESS Electrode Storage Solution for this purpose.