The Beurer PO40 Pulse Oximeter is a compact medical device designed to measure blood oxygen saturation (SpO2) and pulse rate. It features a clear OLED display with easy-to-read numbers and a pulse wave display for accurate monitoring of vital signs. Key features: • OLED color display with bright readings • Measures SpO2 and pulse rate • Pulse wave display • Compact and portable design • One-button operation • Automatic power-off function This pulse oximeter is ideal for both home and clinical use to monitor oxygen levels and heart rate. The device operates on a simple finger-insertion method and provides quick, reliable readings. The automatic power-off feature helps conserve battery life when not in use. The silver-gray housing is durable and easy to clean between uses.