What is the AliveCor Heart Monitor’s Maximum Length of Recording? Janice Jones October 29, 2016 02:01 Updated Follow At this time, our system will support a continuous ECG recording of approximately 10 minutes. Related articles The battery in my AliveCor Heart Monitor is dead. How do I replace it? What mobile devices are compatible with the Heart Monitor? What is the Mains Filter? What is the Gain of the AliveCor Heart Monitor? What is the Paper Speed of the AliveCor Heart Monitor? Comments 0 comments Article is closed for comments.