The CMS50D1 Pulse Oximeter is a compact, high-performance device designed for non-invasive measurement of blood oxygen saturation (SpO₂) and pulse rate through the fingertip. Using advanced optical detection technology, it delivers quick and accurate readings ideal for both medical and home use. The device features a clear display for SpO₂ values, pulse rate, and bar graph visualization, alongside a real-time pulse waveform display. Its automatic direction-changing function ensures comfortable viewing from multiple angles, while adjustable screen brightness allows for optimal readability in various lighting conditions. The low-voltage indication feature alerts users when battery power is insufficient, and the auto standby mode helps extend battery life.