Sunbeam CMS50DL Portable Fingertip Pulse Oximeter, Blood Oxygen Saturation and Pulse Rate Monitor with Batteries…

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FITNESS-FOCUSED – Quickly and accurately measures blood oxygen saturation (SpO2) and monitors pulse rate (heartbeats per minute) during exercise, sporting, and aviation activities.
CLEAR AND CONCISE – Large, digital screen with numerical pulse rate display and bar graph for quick reference and easy-to-read results.
ONE-TOUCH SIMPLICITY – Effortless one button operation with auto power off for simple use and convenience.
TRAVEL-FRIENDLY AND CONVENIENT – Portable, lightweight design comes with a lanyard, sweat-proof carrying case and batteries included, so it goes where you go.
SAFE AND RELIABLE – Features a non-invasive comfort grip finger chamber and battery level indicator; intended for 18 years and older.
DEPENDABLE AND DURABLE – 2 year limited warranty on the device; comes with a protective carrying case, lanyard, (x2) AAA batteries and instruction manual.