Wellue Fingertip Pulse Oximeter, Blood Oxygen Saturation Monitor with Batteries, Carry Bag & Lanyard for Wellness Use

ACCURATE AND RELIABLE: Our fingertip oxygen accurately monitors measure O2 level and Pulse Rate in 8 seconds. Automatically powers on/off.
SPOT CHECK MODE: After 30s of measurement, the pulse rhythm analysis result will be displayed on the screen.
BUILD-IN MEMORY: Up to 12 groups data of O2 level and Pulse Rate in record list screen. Quickly view your last 12 times historical data with one click.
AUDIBLE & VISUAL ALERT: When measuring, if O2 level value or pulse rate value exceeds the preset limit, the device will alert with beep automatically and the value which exceeds limit will flash on the screen.
COME WITH ACCESSORIES: Includes 2 x AAA batteries placed and removed easily, a carry pouch to protect the device, 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.