Abstract: A set of precordial electrodes are pre-attached along a single electrical cord where the electrodes can adjust in separation distances to accommodate different sizes of patients without cord looping or tangling. The invention employs cord corrals that permit a distance between adjacent electrodes to be shortened or lengthened while organizing excess cord. By allowing the adjacent electrode connectors to be shortened or lengthened, the lead array of electrode connectors may be used on a variety of different patient demographics and body sizes. While the single electrical cord eliminates the need for individual attachment of each of the lead wires of each of the electrodes to the ECG monitor.