Key Features: Monitor Blood Oxygen Saturation (spo2) Monitor Pulse & Blood Flow (pi%) Non-invasive Finger Scan Dual-color Oled Display * Accurately And Quickly Monitor Your Blood & Circulation With The Deluxe Pulse Oximeter Blood Oxygen Level Monitor From Contec * This Pulse Oximeter Is Engineered To Give You Fast Measurements Of The Oxygen Saturation Of Your Blood (spo2) Your Pulse Rate And The Strength Of Your Blood Flow (perfusion Index) * It's An Ideal Instrument For Use During And After Workouts To Determine Their Effectiveness As Well As At Any Time During An Illness To Monitor Vital Statistics * The Device Is Small Portable And Measures These Attributes With A Simple Non-intrusive Finger Scan * It Can Accommodate A Wide Range Of Finger Sizes And Displays Data On A Vibrant Dual-color Oled Display * Additional Features: Adjustable Display Brightness Six Display Modes Low Battery Indicator Automatic Shutoff To Preserve Battery Life Runs On Only Two Aaa Batteries (included) Adjustable Neck Strap With Quick Release Lanyard * Constructed From Latex-free Materials * Fda Approved *