... or personal use, and does not replace routine clinical ECG for medical examinations. 2)Application object:sub-health group ... such as coronary disease, hypertension, hyperlipaemia, diabetes, palpitation, chest tightness, chest pain, palpitation, and middle-aged or elderly people. This unit ... 3)Purpose:User should use this unit to test whether ECG is normal, if the tested result is frequently abnormal, ...