ECG: 12-lead resting PC-ECG with auto interpretation VCG: Vector-cardiograph with auto interpretation Hardware Features: High sampling rate of 1000Hz Digital filter system Applying anti-baseline-drift technology ensuring the stability of ECG baseline Wilson and Frank hookup system Meet the international standard of IEC60601-1 Easy operation and perfect printout Diagnosis of coronary heart disease Perfect time domain, frequency domain and non-linear HRV analysis Perfect ECG database management system Specification for PC-ECG: Sample rate: 1000Hz, simultaneous 12 leads recording Resolution:12bit Power: 5.0V (DC) Patient Insulation: 4000V AC Defibrillation Protection: Built-in box Digital resolution: 2V Frequency response: 0.05-250 Hz Common mode rejection: >90dB Input impedance: >10MΩ Time constant: 3.2 s Max electrode potential: ±300mV DC Dynamic range: ±10mV Isolate voltage: 4000V Current leak: