The invention relates to a multifunctional device (1) for remote monitoring of a patient's condition, in particular the patient's heart electrical activity and the level of hydration of the patient's chest cavity, having a form of a harness (2) adapted to be worn on the patient's body at the patient's torso area, comprising electrocardiograph (ECG) electrodes (211, 212, 221, 222, 231, 232), bioimpedance electrodes (223, 233, 241, 242), a central unit (213) processing signals originating from said electrodes and a communication module (214) for a wireless transmission of signals processed by said central unit (213) to a remote monitoring system (6). In order to enable simultaneous ECG analysis according to the 12 lead Likar-Mason system along with an independent measurement of the level of hydration of the left and right part of the patient's chest cavity (left and right lung lobe) by means of an electric bioimpedance analysis, said bioimpedance electrodes (223, 241； 233, 242) comprise front electrodes (223, 233) disposed at the front of the patient's body and rear electrodes (241, 242) corresponding to the front electrodes (223, 233) and disposed at the back of the patient's body, arranged in pairs, wherein at least one pair of said bioimpedance electrodes (233, 242) defines a line crossing through the left part of the patient's chest and at least one pair of said bioimpedance electrodes (223, 241 ) defines a line crossing through the right part of the patient's chest.L'invention concerne un dispositif multifonctionnel (1) permettant de surveiller à distance l'état d'un patient, en particulier l'activité électrique cardiaque du patient et le niveau d'hydratation de la cavité thoracique du patient, ayant la forme d'un harnais (2) conçu pour être porté sur le corps du patient au niveau de la zone de son torse, comprenant des électrodes d'électrocardiographe (ECG) (211, 212, 221, 222, 231, 232), des électrodes de bio-impédance (223, 233 241, 242), une unité centrale (2
