Why is AgAgCl used in EKG Electrodes?

Ag/AgCl electrodes are used in EKG (electrocardiogram) electrodes because they provide stable and reliable electrical signals with minimal noise. The silver/silver chloride composition creates a low and stable polarization voltage, which enhances the accuracy of the recorded heart signals. Additionally, Ag/AgCl electrodes are biocompatible and have good conductivity, making them suitable for long-term use on the skin without causing irritation. Their durability and effectiveness contribute to high-quality EKG readings.