Precise Blood Oxygen Measurement: AILE oxygen monitor finger adults oximeter is composed of advanced MCU chip and high performance acceleration sensor. The blood oxygen signal is detected by the photoelectric detection principle, which greatly improves the measurement accuracy. The accuracy of the pulse oximeter can reach plus or minus 2% Precise Heart Rate Monitoring: The oxygen monitor speed reaches 99%, just put your finger on the grating to measure the light reflected/transmitted by the skin. With high-precision sensor detection, the oxygen saturation monitor can accurately measure and display SpO2 (blood oxygen saturation) and heart rate in 8 seconds or less Upgrade Hardware: The pulse-oximeter consists of ABS shell, acrylic panel, high-speed security chip. High quality materials and components make the oxygen sensor accurate and durable (thousands drop tested). Improved screen with bold red font allows you to comfortably read blood oxygen levels and real-time heart rate at a glance in any environment Easy to Use & Easy to Install: The finger pulse oximeter uses one-button measurement, and the measurement results are displayed on a large digital LCD display. Reading in both directions. You can change the display orientation each time you press the button. The springs are designed on the same side, allowing customers to safely remove the battery. Half cover type cover for easier installation Widely Applicable to People: The heart rate monitor finger oxometer is based on advanced MCU chip, oxymetre smart silicone finger sats probe, after most of the investigation and design, can be widely used in children (2+), adolescents, adults, elderly, Pregnant women, athletes or anyone interested. You can easily measure SpO2 and pulse levels after flying, skydiving, running, hiking, biking, swimming, mountaineering, skiing, high altitude climbing, eating, waking up and more