Check your blood oxygen level and pulse rate at home with the HoMedics® Premium Pulse Oximeter. It provides measurement accuracy of ±2% oxygen saturation levels, monitors your heart rate while exercising, checks your pulse rate, and measures blood oxygen levels with one-button operation. Soft silicone comfort fit with an auto-adjustable display features 5 levels of brightness and a low battery indicator. Intended for adults and children for sports or recreational use only.