The intended use of NECG-12C 12-channel electrocardiograph (hereinafter called NECG-12C) is to acquire ECG signals from adult and pediatric patients through body surface ECG electrodes. The electrocardiograph is only intended to be used in hospitals or healthcare facilities by doctors and trained healthcare professionals. The cardiogram recorded by the electrocardiograph can help users to analyze and diagnose heart disease. However, the interpreted ECG with measurements and interpretive statements is offered to clinicians on an advisory basis only. NECG-12C gathers ECG signals of 12 leads simultaneously. It displays the operation menu, ECG parameters as well as electrocardiograms. The 12-channel ECG waves can be viewed on the LCD screen and printed out by using a high-quality thermal recorder. The sampled ECG data can be saved, transmitted and exported. The manual, auto, rhythm, R-R analysis or off mode can be chosen freely. NECG-12C can be powered by the mains supply or the battery. With a high resolution thermal recorder, a 32-bit processor and a large-capacity memorizer, NECG-12C has advanced performance and high reliability. The compact size makes it suitable for clinic and hospital uses. NECG-12C adopts 800×480 multicolor LCD screen.