https://joy.videvo.net/videvo_files/video/free/2012-08/large_watermarked/hd0204_preview.mp4 ECG Heartrate Graph 2 Looped animation of an EKG (heartrate monitor) graph readout. 1080pecgEKGelectrocardiogramhealthcareheartbeatheartrateheartratemonitormedicalmedicinepulsereadoutscience