Refund Policy here
We do our best to ensure the highest quality of our products, but occasionally some of these electrodes may lose the coating on the tips of the electrodes during kitting and/or transit. It is expected that each pack may have one of these electrodes. Please check to make sure that you cannot see the white plastic substrate on the tips of the electrodes before using them. According to the manufacturer, these electrodes have a lifetime of 25-50 uses. After this many uses, the conductive electrode coating may be compromised IF the electrodes were not maintained. Recommended maintenance means gently cleaning with rubbing alcohol or deionized water, then drying completely before storing in a dark, low moisture container. Care is important for ensuring the integrity of the conductive Ag-AgCl coating.