The Edan 01.57.109850 (cross-referenced as 01.57.471055-13) is a medical-grade, one-piece diagnostic patient cable engineered specifically for the DX12 telemetry sampling box and SE-1515 PC-based stress testing systems. Built using premium internal insulation, this high-performance cable isolates and protects faint cardiac signals from external electrical interference and heavy physical motion artifacting. It incorporates a comprehensive 12-lead profile using AHA color-coding standards for immediate positioning accuracy, paired with secure snap-style terminal leads that maintain uniform connection continuity during vigorous treadmill and ergometer patient testing protocols.