Introduction : 1?Features ? High-frequency thermal printing system ? Real time continuous record of ECG waveform and notes ? In the automatic mode, press the button only once to start record ? Light-touch keyboard control, easy to operate ? LCD screen displays the working state and parameters ? Continous 80 ECG waveforms available under the full DC battery 2. Technical Specification ? Input circuit: floating ? Calibrating voltage:1mV±5% ? Input current : 103dB ? A/D?12bit ? Frequency response: 0.05Hz—150Hz ? Filter: AC 50/60Hz, EMG 35-4Hz ? Skin voltage tolerance: ±300mV ? Sensitivity: 5 , 10 , 20mm/mV,conversion diversity?5% ? Noisy level: ?15uVp-p ? Safety standard: IEC class I, CF type ? Lead selection: automatic and manual ? Operation mode: automatic and manual ? Display: LCD 160*96 ? Recording system: thermal array printing system ?Power supply : AC220V±10%, DC7.4V lithium battery