... signal by indicating light;V1,V3,V5 leads mensuring for Physical examination, time-saving, paper-saving, convenient ... AUTO3 Filter AC, EMG,Drift Fliter CMRR ≥100dB(with AC filter) Input circuit Floating; Protection circuit against ... specification 63mmx30m,roll 50mmx20m,rollLCD display .320x240 graphic LCD,display status&waveform. 20x2 character LCD,display status.Safety classification IEC60601-1 ...