Features: 1. 5.7”TFT single clolor screen? 2. Support multi-language, printing preview , diagnosis results can be edited. 3. Electrode connection diagram 4. Alphanumeric keyboard 5. Pace-maker detection, anti-defibrillation 6. Automatic measurement and interpretation tested with authoritative CSE database 7. 300 ECG internal memory 8. 122 kinds of arrhythmia analysis 9. Last 120 seconds 12-leads waveforms reviewable and recordable 10. 110mm thermal recording, support Z-folded paper and A4 paper 11. External printer and data transmission support by USB port 12. Keypad backlight select 13. Optional Network Capability