Portable spot-check monitoring for healthy active living. This Pulse Oximeter is ideal for sports and fitness enthusiasts to spot-check their blood oxygen saturation and pulse rate on the go as well as reliable for monitoring during air travel. This unit is reliable and easy to use and apply. With the simple press of the button, quickly know your blood oxygen saturation (SPO2) and pulse rate (BPM)&; from any finger. The smooth interior and spring-hinge allows for adult and child size digits without pinching or squeezing fingers.