Abstract: A cable harness device for use with an EKG machine in which the cable harness device includes a central unit having spring biased laterally extending arms, side arms perpendicularly attached to the lateral arms, a swivel joint mounted on top of the central unit, a boom attached to the swivel joint; and a plurality of EKG electrodes attached to the boom, lateral arms, and side arms to monitor the electrical activity of the heart. The cable harness device of the present invention permits the operator to quickly remove the chest electrodes attached to the boom by rotating the boom away from the chest in order to permit heart message if cardiac arrest occurs while the patient is attached to the EKG machine. This arrangement also permits the side arm and lateral electrodes to remain attached to the patient to monitor the electrical activity of the heart while heart message is being given.