Buy this item and choose any other item in our store for 50% discount on the selected item. 1.【Fast and Accurate】 The fingertip pulse oximeter accurately determine your SpO2 (Blood oxygen saturation levels) and pulse rate in just 5 seconds, the large digital OLED display can clearly display SpO2 , pulse rate, pulse rate bar graph and pulse rate waveform. 2.【Multi-Direction Display】 Pulse oximeter uses the most advanced OLED screen, the OLED display is more clear than the LED display. The screen can be rotated in four directions, allow you to view your results in any direction. Hold down the button long to adjust the screen brightness. 3.【Real and Full Value】 The pulse oximeter can display up to 100% for SpO2. Pulse rate measurement range: 30BPM~250BPM. Include bar graph and waveform graph which showing in real time the intensity of the signal strength. 4.【Designed for Home Use, Exercise or Travel】 Suitable for home use and outdoor use , such mountain climbers, skiers, bikers, aviators or anyone interested in measuring their SpO2 and pulse rate.You should only use the pulse oximeter before or after your exercise. You must remain stationary when the pulse oximeter measure your pulse and SpO2. 5.【1 year warranty】 The pulse oximeter uses 2 x AAA battery(Not Include). Warranty within 1 year, if the product has quality problems, please contact the seller for free replacement via Amazon Mail. Model No.937-4889-71109-073771-9110