Abstract: An electrical interconnection is provided between a patient and physiological sensing or monitoring equipment. A permanent electrode is formed with a thin flexible housing which encases an electrical connector such as a pellet or nodule so that a portion of that connector is externally exposed on one surface. A disposable pad formed of a thin flexible base frame has a central bore and a double-faced adhesive disc on one side for attachment of the electrode surface containing the connector and concurrently retaining a conductive gel within the disposable pad for electrical communication with the electrode conductor. The adhesive on the opposite surface of the disposable pad is adapted to secure the pad to a selected area of the skin of the patient.