SPECIFICATIONS 1.Accurate pulse pace identification and auto-analysis function. 2.Working modes:Manual/Auto/R-R Rhythm/Storage. 3.215mm,12 channel format recording. 4.800×480 graphic 7 inch color LCD screen. 5.12leads synchronously acquisition and display. 6.250 patient cases save and replay(entendable). 7.Alphanumeric keyboard for peration and input. 8.Adapt to 110-230V,50/60Hz power supply. 9.Built-in rechargeable Li-ion battery. 10.High resolution thermal printing. 11.USB/RS232 interface,ECG software is optional. 12.Can be coonected to Network,USB Disk,Laser Printing and Code Scanner(Optional).