A wireless electrode patch and system for measuring the physiological condition of a subject, more particularly to an electrode patch for ECG monitoring, and a method of sensing, analyzing and/or transmitting or relaying a physiological signal. The wireless electrode patch and system is lightweight, compact and reusable. The wireless electrode patch provides a low, power system for extended battery life and use. The wireless electrode patch and system allows for good reliable measurement of physiological signals from the subject. The wireless electrode is simple enough to apply as a single patch but versatile enough to be reconfigured as more than one patch.