Number of channels:
* 4.3 inch color LCD screen.
* Manual/Auto printing: 1CH, 1CH + 1R, 60 seconds arrhythmia analysis of waveform
* 200 ECG data storage ,SD card supported
* Alarm of electrodes breaking off, Human diagram indicates the unconnected lead.
* V1.V3.V5 chest lead examination mode, fit for massive physical examination.
* Built-in rechargeable Li battery, AC/DC power conversion.