Respiratory diseases are often accompanied by reduced lung function, which can lead to lower oxygen levels in the blood. If measuring blood oxygen levels is important to you, the Braun Pulse Oximeter 1 is practical, clear, and convenient. Effortlessly and accurately measure with the simple finger clip. Results can be read instantly on the rotating OLED display with backlighting. With the handy strap, you can always have it with you. It measures oxygen saturation (% SpO2), pulse rate, and pulse amplitude. Reliable results clinically validated to meet European standards (CE marking). It conveniently clips onto your finger. Clear results are displayed on the rotating backlit screen. The practical strap makes it suitable for on-the-go use. Ideal for adults (>18+) suffering from chronic obstructive pulmonary disease, pneumonia, or sleep apnea. Also perfect for athletes.