... -lead ECG signals; Selectable Multi-recording modes,Three-channel, 3-channel+Rhythm, 60" YSECG0103 ECG 3 Channel LCD display machine~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Select simultaneously acquisition of 12 ... ECG signals;Selectable Multi-recording modes,Three-channel, 3-channel+Rhythm, 60 Sec Compressible waveform record; Three-channel waveform record simultaneously and un- Compressible ...