eBay with yuanzhi_mfy_01 has the YZ 12 Lead 24h Holter EKG Monitor w/ AI Analysis & PC Software (TH12) for $469 - $141 off with coupon code SDEALTH12 [Exp 10/8] = $328 with free shipping. AI identifies 25 heart abnormalities such as Atrial Fibrillation, Atrial Flutter,V entricular Tachycardia, Supraventricular Tachycardia, etc.