Features ? 3.5"TFT Color LCD shows the working status and ECG waveform. Check the waveform before printing to save record paper. ? 12 Leads ECG simultaneous acquisition, digital signal processor, to get higher quality ECG waveforms through the AC filter, baseline filter and EMG filter of the ECG signals. Simultaneous display of 3/6/12 leads ECG waveform, and the state of printing mode, sensitivity, speed, filter etc, to be easy for interpretation. ? Include multiform printing modes and format, such as 4, 3+1(rhythm), 3, 2+1(rhythm), 2, 3(Limb lead) + 2(Chest lead) + 1(rhythm), 3(Limb lead) + 2(Chest lead), rhythm 4, rhythm 3, rhythm 2, Manual etc; the length of wave printing can be adjusted and the function of periodic printing is included to satisfy different applications. ? The instrument has the function of regular auto-analysis and auto-interpretation of ECG waveform parameter, provides measurement parameters such as HR, P-R interval, P Duration, QRS Duration, T Duration, Q-T interval, Q-Tc, P Axis, QRS Axis, T Axis, R(V5), S(V1), R(V5)+S(V1), etc and auto-interpretation conclusion to help reducing doctor's abundance and improve working efficiency. ? The power supply includes both AC/DC. This device includes built-in lithium polymer rechargeable battery. It can standby for 4 hours, print 150 pieces of ECG waveform and print 90 minutes continually under the best DC state to satisfy the need of visiting patients and physical examination.