Feature
•    Small and lightweight, very convenient to carry and use
•    LCD display with backlight
•    Intelligent fingertip probe with automatic finger detection and automatic power on/off
•    Accurately measure SpO2
•    Accurately measure for PR (pulse rate) with beep
•    PI (perfusion index) display available
•    Beep alarm for abnormal readings
•    2xAAA alkaline batteries power supply with low voltage indication