High resolution thermal array printer; 3/4/6 channel 
                          printout format | 
                      
                      
                          
                          5 inch 320x240 LCD to display setting menu and 12 
                          channel ECG waveform | 
                      
                      
                          
                          Simultaneous acquisition of 12 lead ECG data | 
                      
                      
                          
                          Automatic measurement and interpretation of ECG 
                          waveform | 
                      
                      
                          
                          Memory of 16 exams for recall and duplication | 
                      
                      
                          
                          Isolated input circuit with protection against 
                          defibrillation and pacemaking | 
                      
                      
                          
                          AC power/(built in rechargeable LI ion battery 
                          supporting 2 hour operation) | 
                      
                      
                          
                          Paper size: 112mmx20m (roll type) |