Fast/Accurate : One-button measurement of PI PR SPO2, oximeter accurate relative readings displayed within 4 seconds (SpO2 accuracy: ±2%, PR accuracy: ±2bpm) Continuous monitoring for >24 hours, real-time calculation of blood oxygen statistics, assess your health anytime, anywhere. Small size/light weight: oxygen monitor fingertip Lightweight and portable, suitable for outdoor sports enthusiasts, climbers, skiers, cyclists, etc., allowing you to assess your SpO2 value anytime, anywhere,finger oxygen monitor and protect the health of yourself and your family when you are out and about. Humanized design:The fingertip pulse oximeter features a silicone finger sleeve design. Simply insert your finger into the device, and the smart sensor will automatically detect it. The results will then be displayed on the LED screen.o2 pulse oximeter finger If no finger is detected within 8 seconds, the device will automatically shut down. Features motion interference resistance performance: pulse ox During motion, the tolerance is (SpO₂ ±3%, PR ±4bpm (0-4Hz)), with random motion or fixed-frequency motion within 0-3cm, spo2 pulse oximeter ensuring reliable data even during motion. You will receive: 1 fingertip pulse oximeter, 1 user manual Note: athletic & aviation pulse oximeters , This device is for sports and aviation use only and is not intended for medical use. Fingertip Pulse Oximeter - Accurate Blood Oxygen Monitor (SPO2) & Heart Rate Monitor With Anti Motion Interference -Suitable for home/outdoor use