一般你们心电产品配套的心电的电极采用什么材料，电极的材料对信号的影响大吗？

您好，关于电极的选择，我这边已帮您确认，这个是美国工程师的回复：
Since we do not manufacture electrodes we do not have a recommendation to provide. For what it's worth, wet electrodes typically form a better connection compared to dry electrodes.