A water-detection device for detecting a change in an amount of water in a gas phase or in a liquid phase with respect to a baseline-condition, the water-detection device comprising: - a receiver unit for receiving radio-frequency wireless communication signals (S) from at least one external emitter unit in accordance with a predetermined wireless communication protocol; - a signal-quality determination unit connected to the receiver unit and configured to determine and store respective signal-quality values associated to the at least one external emitter unit, wherein the signal-quality value is correlated to an amount of water (W) present in a signal-propagation path between the emitter unit and the receiver unit; - a baseline-value determination unit configured, in response to a reception of a trigger signal (T), to determine and to store a respective baseline-value indicative of the signal-quality value obtained from the radio-frequency wireless communication signal provided by the respective external emitter unit at the baseline-condition; - a water-detection unit connected to the signal-quality determination unit and to the baseline-value determination unit and configured to compare the signal-quality values with the corresponding baseline-value, and to provide a respective water-detected signal (WD) upon determining that the respective signal-quality value has been outside a predetermined tolerance-range of the baseline-value for at least a predetermined water-determination time span, the water-detected signal being indicative of a possible change of the amount water in the respective signal-propagation path with respect to the amount of water in the baseline-condition. - a receiver unit for receiving radio-frequency wireless communication signals (S) from at least one external emitter unit in accordance with a predetermined wireless communication protocol; - a signal-quality determination unit connected to the receiver unit and configured to determine and store respective signal-quality values associated to the at least one external emitter unit, wherein the signal-quality value is correlated to an amount of water (W) present in a signal-propagation path between the emitter unit and the receiver unit; - a baseline-value determination unit configured, in response to a reception of a trigger signal (T), to determine and to store a respective baseline-value indicative of the signal-quality value obtained from the radio-frequency wireless communication signal provided by the respective external emitter unit at the baseline-condition; - a water-detection unit connected to the signal-quality determination unit and to the baseline-value determination unit and configured to compare the signal-quality values with the corresponding baseline-value, and to provide a respective water-detected signal (WD) upon determining that the respective signal-quality value has been outside a predetermined tolerance-range of the baseline-value for at least a predetermined water-determination time span, the water-detected signal being indicative of a possible change of the amount water in the respective signal-propagation path with respect to the amount of water in the baseline-condition. <EOS>