Small in volume, light in weight and convenient to carry around, the fingertip oximeter is convenient for monitoring your pulse rate, blood oxygen and perusion index. Main features of one button operation, 8s fast reading, 8s auto-off, high accuracy with stable performance, clearly LCD to display the PR, SpO2, and PI directly, and it has 4 display angles to switch from. Features: Multifunctional & Practical: the oximeter for measuring pulse rate(PR), blood oxygen saturation(SpO2), and perfusion index(PI), very suitable for using in community, school, plateau area, oxygen bar, fitness club, family and other professional institution, etc. High-definition TFT LCD Screen: user-friendly colored screen with white and yellow fonts to display numerical value of pulse and heart rate(PR), blood oxygen saturation(SpO2) and blood perfusion index(PI). Accuracy & Reliable: adopts with advanced MCU chip for fast measuring within 8 seconds and guarantee the measuring accuracy. Simple Operation: easy