SPECIFICATIONS 1.Accurate pulse pace identification and auto-analysis function 2.Working modes:Manual/Auto/R-R Rhythm/Storage. 3.80mm,3 channel format recording. 4.12 leads synchronously acquisition and display. 5.800×480 graphic 5 inch color LCD screen. 6.100 patient cases save and replay(extendable). 7.Advanced (freeze) function 8.Adapt to 110-230V,50/60Hz power supply. 9.High resolution thermal printing. 10.Built-in rechargeable Ni-MH battery. 11.USB interface and ECG software is Optional. 12.Can be connected to Network,USB Disk,Printer and Code Scanner(Optional)