... Electrocardiograph Light, compact, 5.7 inch screen, printing with 112mm width paper 3 operation mode: Autom SIX CHANNEL ECG ... FeaturesLight, compact, 5.7 inch screen, printing with 112mm width paper 3 operation mode: Automatic, Manual, Analysis ... rechargeable lithium battery Automatic adjustment of baseline for optimal recording RS232 port to transmit ECG data Lead mode: Standard, or ...