An electrocardiographic system, the electrocardiographic system includes a first part that includes: a first housing that comprises of a first bottom layer that is elastic and has an underside provided with an adhesive material； a first set of electrodes that is located within the first housing； wherein the first set of electrodes comprises at least one first electrode； a second part that comprises: a second housing that comprises a second bottom layer that has an underside provided with an adhesive material； a second set of electrodes that are located within the second housing； wherein the second set of electrodes comprises at least one second electrode； a mechanical adaptor that is arranged to be detachably connected to a electrocardiographic device that comprises a processor and a wireless transmitter； and an electrical connector that is detachably is arranged to be detachably connected to the electrocardiographic device and to electrically couple the electrocardiographic device to conductors that convey signals from the first and second sets of electrodes.
