7 inch 480x680 color graphic LCD display 3-channel 12-lead Monitor .Digital filters eliminate EMG, AC, Baseline Drift interference
Built in rechargeable Li-Ion battery, 3 hours continuous working .Built in USB/RS232 interface Recording modes:Manual, automatic sequential, automatic simultaneous, Rhythm lead selectable Writing system :High-resolution thermal printer (8 dots/mm); Horizontal 40 dots/mm ,Thermal paper:80mm wide 20M thermal paper in Z-fold packers or in rolls 250 patients save/replay , can be stored on external SD card.