The CMS50D2-1 Pulse Oximeter is a versatile fingertip device designed to measure blood oxygen saturation (SpO₂) and pulse rate with high precision. It integrates multiple display features, including SpO₂, pulse rate, bar graph, and pulse waveform visualization. Optional functions such as perfusion index (PI) display, PR sound indication, and over-limit voice prompts enhance usability and monitoring awareness. The device features an OLED display with automatic rotation, adjustable brightness, and multiple viewing modes for user comfort. It also includes a battery power indicator, low-battery warning, and automatic standby for efficient power management. Lightweight and easy to operate, the CMS50D2-1 is suitable for hospitals, clinics, home healthcare, and sports wellness monitoring.