TLC6000 Dynamic ECG System Machine (Batteries not included). The TLC 6000 is a compact, high-precision 12-lead dynamic ECG system compliant with international standards. Cardiac Risk Prediction: Includes HRT (Heart Rate Turbulence) analysis to predict mortality risk in myocardial infarction patients, and T-Wave Alternation detection—a key indicator for malignant arrhythmia and sudden cardiac death.