Simultaneously acquisition of 12-lead ECG data, IEC Class I, type CF safety standard Display of ECG waveform, operation menu and parameter setting via large LCD(320x240 dots) Selectable four modes of leads: Manual (standard single channel), Auto I (standard three channel), Auto II (standard single channel plus rhythm lead) and Auto III (European three channel) Function of ECG parameters measurement and interpretation, distinguish point printing under automatic mode Powerful filter for AC, EMG and DFT interference High resolution 63mm thermal printer AC and DC power supply, rechargeable built-in battery, at least 2 hours? working time Real time clock, heart rate examination and display of ECG waveforms USB interface ensures connection with computer and data transfer Option: RS232 interface, patient info and ECG data storage function, net-working capacity