Provide twelve lead system, with st and arrhythmia analysis function Selectable 50hz or 60hz band stop filter 500hz 7/12 lead synchronous sample and anylsis Character classification up to tweel sort, and 3 channel st segment monitoring 3-channel ecg waveform st segment analysis Heat rate calculation arrhythmia analysis lead off status indication 1-channel respiration waveform�ꡧr-f/ra-ll��© Respiration rate calculation temperature 2-channel temperature datum