... All Digitized; Select simultaneously acquisition of 12-lead ECG signals; Powerful anti-interference with variety of filtering methods: DFT, AC,EMG, ... the waveform clearly, accurately and nondeformed; LCD screen with 320×240pixel, on screen displays 12 leads waveform, manu, heart rate, ... automatically after the leads ready. So it solve the problem of printing linear when a lead failed, which guides ...