USA stock  We ship USPS mail to U.S address.  (seller from Oversea takes up to a month) 

ACCURATE & RELIABLE: Blood oxygen accuracy is ±2%, pulse rate is ±1%, SpO2 measurement range is 70% to 99%, PI measurement range is 0.2%-30%, (PR)BPM measurement range is 30 bpm - 250 bpm . CE  and FDA approved.

SUITABLE For EVERYONE: sports enthusiasts such as climbers, skiers, cyclists, runners, aviation use or anyone interested in measuring their SpO2 and pulse rate, recording breathing or sleeping.

PORTABLE & LIGHTWEIGHT: Each oximeter weighs only 40g  so you can use the portable oxygen sensor at any time.

EASY READ FUNCTION: Our SPO2 sensor will check and display blood oxygen SPO2 value, pulse PR value, blood oxygen bar graph

AAA batteries required (not included)

Package included: