The CMS50D2 Pulse Oximeter is a compact and reliable device for measuring blood oxygen saturation (SpO₂) and pulse rate through the fingertip. Designed with advanced photoelectric technology, it provides accurate readings suitable for medical institutions, homecare, and sports health monitoring. The CMS50D2 features SpO₂, pulse rate, and pulse waveform displays, along with bar graph and optional Perfusion Index (PI) indicators. Its screen automatically adjusts direction for easy viewing and offers adjustable brightness to suit different lighting environments. Additional functions include a low-battery indicator, battery power display, and automatic standby mode for efficient power use. Optional features such as PR sound indication and voice prompt for over-limit conditions enhance usability and patient safety.