1.Light weight and inner handhold designed for portability. 2.Designed with a high-resolution thermal printer to print out ECG waveform, annotation as well related parameters for diagnosis reference. 3.Roll recording paper for ECG-8130 is 63mm in width and 30m in length. Simultaneously acquisition of 12 lead ECG data, IEC Class, type CE safety standard. 4.Digital isolation technology is adopted to minimize time/temperature drift of components so as to promote adaptability of the unit to circumstance. 5.Digital filter for effective inhibition of baseline drift, interference, as well automatic position of baseline. 6.Self-test upon powering on. 7.Function of rhythm lead for observing abnormal ECG waveform & heart rate, Automatic measurement and interpretation of ECG waveform to relieve doctors from strain. 8.Multiple print formats include 3-channel, 2-channel, 1-channel, and particularly the one that combines 3-channel (for leadl-aVF) and 2-channel (for V1-V6). 9.AC/Rechargeable battery for supporting continuous examination when AC power supply is unavailable. 10.For battery operation, ECG-8130 is equipped with a charger & system for battery capacity management and protection itself from excessive discharge. 11.Lfilters: AC, HUM, DFT Real-time clock, real-time measurement and presenting of ECG parameter. 12.Option: ECG software for net-work capability. 13.8 Patients Save / Copy / Communication 14.Large LCD to display 12 lead ECG waveform. 15.Chinese / English language 16.Built in Rs232 interface (USB is optional)