Feature
•    Small and lightweight, very convenient to carry and use
•    Bright 1.1” full color OLED display and 4 directions switchable
•    Automatic rotation by gravity sensor
•    Intelligent fingertip probe with automatic finger detection and automatic power on/off
•    Accurately measure SpO2, with anti-motion technology
•    Accurately measure for PR (pulse rate) with beep
•    Switchable to PI (perfusion index) percentage display
•    Real time pulse bar and plethysmogram display
•    Beep alarm for abnormal readings, with adjustable limit
•    2xAAA alkaline batteries power supply with low voltage indication