Finger Pulse Oximeter is an affordable and precise way to check your pulse rates and blood oxygen saturation levels. The smart design, self-adjusting finger clamp plus simple one-button design allows for easy operation. The compact portable sizing makes it easy to handle and carry for testing at home or on the go. Helpful for athletes and pilots to obtain quick and precise oxygen saturation readings. Features include an easy-to-read large bright red digital OLED display and low power consumption on 2 AAA batteries. Integrated SpO2 probe and processing display module plus SpO2 and Pulse Rate and bar. 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. Link :- https://santamedical.com/products/fingertip-pulse-oximeter-blood-oxygen-saturation-monitor-spo2-with-pulse-rate-measurements-and-pulse-bar-graph-portable-digital-reading-oled-display-batteries-included