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