Features: Simultaneous acquisition of 12-lead ecg data, 12 leads waveform display and print by segment 9 inch color high resolution lcd screen, color graphics menu, convenient and intuitive man- machine dialogue Touch screen control, easy to operate it Manual\auto 3ch+3r, 6ch, 6ch+1r, 12ch, 12+1r and 60 sec arrhythmia waveform analysis , 5 minutes arrhythmia analysis. 1000 ecg data storage, sd card support Alarm of electrodes breaking off, body diagram indicates the unconnected lead V1, v3, v5 chest lead examination mode, easy operation. Recording one case ecg data in 3 seconds, and useful for the large-scale examination. Box