A612 is a portable and high quality 12 channel ECG machine with interpretation. It can widely used in hosipital, Clinic and emergencies. Product Description Portable 12 channel ECG machine ? Work modes: Manual/Auto/Arrhythmia analysis modes ? 5.7 inch LCD, with touch screen ? Alphabetic keyboard for patient information ? Built in rechargeable Li-ion battery ? Adapter 110-230V, 50/60Hz AC power supply ? Real-time ECG waveform, 16 patients save/replay ? Built in USB/RS232 interface(ECGNET software optional)