MD300C318T as a special designed Fingertip Pulse Oximeter, is intended for continuous monitoring or spot checking in measuring and displaying functional arterial oxygen saturation (SpO2) and pulse rate of patients in hospitals and home care. It is intended for adult and pediatric patients on finger between 0.3-1.0 inch (0.8 - 2.5 cm) thick.MD300C318T can be used by COPD patients? Intermittent Apnea patients, the elderly, the athletes and climbers. This affordable product will save patients' time and money and improve staffs work efficiency. Accurate Measurement Professional Guarantee 1. Color OLED screen displays SpO2, PR, waveform and pulse bar; 4 display modes; 2. Rechargeable lithium-ion battery, battery charging via USB cable or adapter; Innovational Design Exhibit Quality 1. Real-time and non real-time Bluetooth data transmission; 2. Real-time inner clock; 3. Software upgrade with Bootloader; 4. Suitable for adult and pediatric;