... time The analysis system of HR variability, providing the regular SDNN, SDANN, RMSSD,LF, HF, time domain, and frequency domain QT analysis ... separate channel, also have the functions of VCG,LPG, high frequency ECG, FCG. Recorder: One of the smallest ECG recorder in ... leads(piece) 7 10 10 16Lead Analog Standard Standard StandardSampling frequency 10k 10k 10k 10kSampling accuracy(bit) 8 8 12 12HRV ...