... ECG Features:^12 Leads ECG simultaneous acquisition, simultaneous display of 3/6/12 leads ECG waveform^Build-in real-time analysis ... ΜΩ ^Frequency response: 0.05Hz~150Hz(-3dB,+0.4dB)^Time constant:>3.2s^Noise level: ≤13μVp-p^Filter: AC filter, EMG ... ^Measure data: HR, interval, Duration, Axis^Paper speed: 25,50mm/s, ±3% etc^Recording paper: 210/216mm(W)*20/30m(L)^Safety ...