pH electrodes last several years when stored properly
pH electrodes should be stored in a specialized solution when not in use*. Flairform pH Electrode Storage helps:
*Properly formulated storage solutions help prevent dehydration of the glass electrode and porous frit (or wick) while preserving the electrode’s filling solution. NOTE, pH buffers and distilled water are not suitable for storing pH electrodes as they can upset electrode calibration. Electrode storage solutions are carefully structured formulations that do not interfere with the chemical composition of the liquid/gel that is contained within the electrode.