Uploaded April 2016 | Updated September 2026, 2 hours ago

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Source: http://mobilecg.hu/blog.html

"To address many people's concerns: yes, this "electroCARDiograph" (name by ldsnowbored on 9gag) measures the real ECG signal between the users hands (Lead I in Einthoven's triangle, image from Wikipedia).
While it is not a diagnostic device, it is good enough to clearly capture the P, Q, R, S and T waves of the ECG signal"