... domain, frequency domain and non-linear HRV analysis PC working base PC ECG system, ECG recorderCE markedPerfect time domain, frequency ... CardioScape HolterFunctions & Features: QRS TemplatesApply Demix technology, ensures the accuracy of QRS templates, includes N (Normal), V (Ventricular Ectopy), S ... grams (battery not included) Lead: 10 wire patient cable (I, II, III, aVR, aVL, aVF, V1~V6) Power: 2 ...