The newly upgraded Mievida Finger Pulse Oximeter is a quick and precise way to check pulse rates and blood oxygen saturation levels. Self-adjusting finger clamp plus simple one-button design allows for easy operation. Small portable size makes it easy to handle and carry. Helpful for athletes and pilots to obtain quick and precise oxygen saturation readings. Features include an easy to read bright digital OLED display, 30+ hours of continuous monitoring on one set of batteries. Integrated SpO2 probe and processing display module plus SpO2 and Pulse Rate and bar. Low battery level indicator. Auto power off. Low power consumption on 2 AAA batteries. Comes with a hanging neck/wrist strap for use on the move. Intended use for spot check of pulse rates and blood oxygen saturation level at home, in sport and recreational use, such as mountain climbing, high-altitude activities and running. This device is for Sports & Aviation use only and not intended for medical use.