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Defi-monitor/monophasic BR-DF08 ECG: ECG lead: Ⅰ,Ⅱ,Ⅲ, aVR, aVL, aVF, V1-V6 Protegtion: withstand 4000v AV/50HZ voltage in isolation and work against electrosurgical interence and defibrillation. ECG ...