The 8Z11 Card Type HRV monitor is a handheld device indicated for use in non-invasively detecting and displaying Real-time ECG waveform and heart rate.The collected ECG signals are analyzed by frequency spectrum to discover minor fluctuations in the heart rate variability data for self-testing of adult in daily life; or it also can provide the doctor with relevant data on the heart condition or automatic nervous system of the patient in hospital and clinical research. It can also have long-term monitoring in those applications: academic research, home care, and clinical research.

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