ACCURATE AND RELIABLE - InvoSpa's oximeter with pulse oxygen saturation monitor will determine your SpO2, Pulse Rate and Pulse Strength results in 10 seconds or less displayed on its large digital pulse oxygen finger monitor LED screen. The oximeter blood oxygen saturation monitor is very accurate and reliable! SPORT ENTHUSIASTS - Suitable for mountain climbers, skiers, bikers, aviators or anyone interested in measuring their SpO2 and pulse rate while on the move. NOTE: The fingertip oximeter device is for Sports & Aviation use only and is not a medical device. PORTABLE AND LIGHTWEIGHT - Weighing only 50 grams, the finger pulse oximeter comes with a lanyard so it's easily carried on its own or inside your gym bag or backpack. Attach the included lanyard to the case or directly to the spo2 pulse oximeter for easy reach anytime. READY TO USE OUT OF THE BOX - Fingertip Pulse Oximeter device, 2 AAA Batteries, User manual for oxygen monitor fingertip & a Lanyard for your convenience. Blood oxygen meter finger. LOW POWER CONSUMPTION - Pulse-oximeter with two AAA batteries, the pulse oximeter fingertip automatically powers off when not in use and delivers up to 24 continuous hours of battery life. Oximeter finger with pulse.