... and perfect printout Diagnosis of coronary heart disease with 12-lead Perfect time domain, frequency domain, and nonlinear HRVanalysis ... parameters ECG box (patient isolation and data acquisition) 12 Lead ECG cable Sample rate :1000Hz RS232 interface with PC ... Resolution :12bit Receiver power :5.0V (DC) Lead:12 lead standard ECGNine functions12-lead ECG with auto interpretation ,High frequency ECG,FCG ...