Highly adaptable monitoring technology Skin color non-discriminatory detection: Based on clinical data from 39 volunteers with different skin colors, it ensures that measurements in dark-skinned populations are consistent with light skin, eliminating traditional device bias. Hypoperfusion monitoring: Accurately measures patients with perfusion index (Pi) as low as 0.02% for extreme conditions such as shock and hypothermia. Motion-compensated algorithm: maintains data stability even with slight finger shaking, reducing repeated measurements. Intelligent Alarm and Safety Design Low Voltage Alert: Low battery icon is displayed when the battery level is below 10% to avoid data interruption due to power failure. Auto shut-off function: automatically shut off the device 10 seconds after the finger is removed from the finger cuff to extend the battery life (2 AAA batteries support about 20 hours of continuous use). Clinical application scenarios Family health management: monitoring daily blood oxygen level of COPD, asthma, heart disease patients, assisting in the adjustment of medication or oxygen program. Exercise and plateau protection: real-time tracking of blood oxygen changes during hiking, running and cycling to prevent plateau reaction or over-training. Post-operative and rehabilitation monitoring: nighttime blood oxygen monitoring for post-operative patients or the elderly to reduce the risk of sleep apnea.