Electrocardiography (ECG) machines are advanced diagnostic devices that record the heart's electrical activity through 12-lead electrodes, enabling precise detection of cardiac arrhythmias, ischemia, and infarctions. Compact and portable, they feature high-resolution color touchscreens, simultaneous 12-channel acquisition, and automated analysis algorithms like Glasgow for instant interpretation of HR, PR/QRS/QT intervals, and axes. Equipped with rechargeable Li-ion batteries for 100+ exams, digital filters suppress noise (EMG, baseline, AC), and multiple modes (auto/manual/rhythm) at speeds of 25/50 mm/s. Thermal printers output clear reports on 50mm roll paper, with USB/PC connectivity for storage and EMR integration, ensuring reliable performance in clinics, ambulances, and ICUs for rapid triage and monitoring.