... AnalyzerVersion: CardioScape HolterFunctions & Features: QRS TemplatesApply Demix technology, ensures the accuracy of QRS templates, includes N (Normal), V (Ventricular Ectopy ... 24 hours, full disclosure, no data compression, 12-lead ECG Storage: 2G built-in flash memory LCD display: ECG waveform and ... III, aVR, aVL, aVF, V1~V6) Power: 2 AA size battery diagnostic cardiology- holter system- Cardioscape