MD300C316 is a very important and common device to check oxygen saturation (SpO2) and pulse rate. As a small, compact, simple, reliable and durable physiological monitoring device, Fingertip pulse oximeter is widely applied in clinic, hospital, social medical organization, first aid and homecare etc. Accurate Measurement Professional Guarantee 1. Audible, visual and vibrative indication for SpO2 and PR ; 2. USB cable for data transmission and battery charging; 3. Menu management easy to operate ; 4. 99 ID codes; 72-hour record storage ; 5. 1.12” OLED displays SpO2, PR, pulse bar and waveform; 6. Automatically power off after finger out for 8 seconds; 7. Suitable for pediatric and adult;