To date, the impressive incidence, hospitalization and mortality rates of heart failure, especially in elderly subjects, jointly with a lack of efficient screening tools in the clinical context, have a strong social, logistical and economical impact on the healthcare system. The objective of the present work is to analyze the feasibility of a home device for the prevention and early diagnosis of heart failure. The device is based on the noninvasive acquisition of electrocardiographic and phonocardiographic signals devolved to the computation of the time delay between the occurrence of the first heart sound and the peak of R-wave in ECG (R-T1); an increase in the latter was proved to correlate with heart failure onset and severity.