Comen CM 600 - 6 Channel ECG Machine Features: 5.7 inch high- resolution LCD screen (resolution: 320 x 240) Support 6×2, 3×4 and rhythm leads display on screen Lead statue map to show ECG leads conductivity Anti- defibrillation and Pacemaker detection 12- lead simultaneous acquisition, amplification and recording 122 kinds of arrhythmia analysis