The Edan SE-301 is an ultra-compact, lightweight 3-channel electrocardiograph designed for maximum portability in mobile clinical environments. It features a high-resolution 5" color touchscreen that displays all 12 waveforms simultaneously, combined with a streamlined one-button operation for sampling, analysis, and printing. Despite its palm-sized design, it offers powerful technical specifications including a 16,000 Hz sampling rate and a high CMRR of 140dB, providing superior signal quality for both adult and pediatric patients.