ACCURATE & RELIABLE: Plethysmograph wavefom provides a visual representation of heartbeat and the amount of blood flowing through the blood vessels; perfusion Index corresponds to pulse strength; both of them help determine the accuray of readings

BUILT-IN MEMORY: Store up to 12 sets of O2 level and Pulse Rate on the device; Quickly view your last 12 times historical data with one click on finger pulse oximeter

SPOT CHECK MODE: After 30s of measurement, the Spo2 pulse rhythm analysis result will be displayed on oxygen meter finger pulse oximeter

AUDIBLE & VISUAL REMINDER: When measuring, the oximeter will remind with beep automatically and the value will flash on the screen if oxygen level value or pulse rate value exceeds the preset limit

AUTO ON&OFF: After putting finger inside the clip, this finger pulse oximeter will automatically power on and start measurement in 8 seconds; when finger is out, it will automatically power off in 3s

COME WITH ACCESSORIES: Includes 2 x AAA batteries placed and removed easily, a carry pouch to protect the oxygen meter, and a lanyard for convenient carry

Note: It's not a medical device; This device is for Sports and Aviation use only and not intended for medical use

It is recommended that the Oximeter should not be applied to the same location for longer than 2 hours; If any abnormal condition is found, please change the position of Oximeter