... ,6Ch+1R and 60s arrhythmia report.^Physical examination mode(A4 Paper),R-R histogram, trend, average QRS template^Build-in SD ... % etc^Measure data: HR, interval, Duration, Axis^Paper speed: 25,50mm/s, ±3% etc^Recording paper: 210/216mm(W)*20/30m(L)^Safety ...