1.Portable 12 channel ECG machine 2.Alphabetic keyboard for patient information ... printerSafety standard: GB9706.1-2007, IEC Class I, Type CFSpecifications: Portable 12 channel ECG machineManual/Auto/Arrhythmia Analysis ModesAlphabetic keyboard for ... graphic 5.7inch LCD, 16cases save/replay ECG-12A Digital Electrocardiograph