Check your pulse on the fly with this amazing Fingertip Pulse Oximeter by Dagamma. The number one pulse oximeter - unmatched performance with revolutionized technology. This authentic fingertip pulse oximeter is used by pilots and sports enthusiasts to accurately measure pulse rate and blood oxygen saturation levels quickly. The large LED display clearly shows the heart rate in BPM and the blood oxygen saturation level. It is super easy to use. Pop the batteries in and off you go. Simple, sleek, and effective. Single button for ease of use. It is very small and can fit in your pocket or handbag easily. Comes with everything you need to get started. Suitable for use at home or on the go.