It is furnished with auto-detection of lead fault and pace-maker detection function, and is controlled by a personal computer, which manipulate the lead selector, overdriving elimination circuit, the gain and the frequency range of filter. 它具有电极脱落自动检测电路和起搏器检测电路,由微机程控实现导联切换、消除过驱动、选择频带范围以及灵敏度。