The fingertip oximeter is used to measure blood oxygen saturation levels and pulse rates, simple to operate, quick and accurate to get data.  It is small and portable, suitable for family use to care for body health. Features: Color l-ed display screen to display content clearly. Set alarms and beeps as needed, warn when the measured value exceeds the defined value. The silicone finger mold is comfortable to use and does not overwhelm fingertips. Low energy consumption and ecologically friendly, automatic shutdown after 5 seconds when not in use. Light weight and easy to operate.