The electrocardiograph E12 can collect 12-lead ECG signals simultaneously and print ECG waveform with a thermal printing system. It features: - Recording and displaying ECG waveform in automatic/manual mode. - Automatic measurement, analysis, and diagnosis of ECG waveform parameters. - Prompts for "Lead off" and "Lock of paper." - Optional interface language (Chinese/English). - Built-in lithium battery, AC/DC