E80 has a HR range from 30bpm to 350bpm and HR precision with ±1bpm. It is measure and diagnosis of ECG Waveform. The Voltage transfer ?1V and it energy reduced ?10%. Recovering time for defibrillator electrode polarization ?10 s and eecovering time for defibrillator proof ?5 s. It has defibrillator proof at 5000V 360J. Time for baseline recovered later switching leads ?1s and time for response to wave displaying ?5s. It provide CMRR at ?109 dB along with AC filter. Signal input 12 Lead, defibrillator proof, Pacemaker pulse rejection. The screen display of ECG Collection. Standard complied with: IEC 60601-2-51