Product Features:

• Measure the percentage of oxygen in the blood and heart rate.
• Color OLED monitor with 4 different display modes.
• Pulse histogram and 4 kinds Spo2 wave display.
• Low voltage alarm display.
• Perfusion index indicator of the reliability of the pulse oximeter reading.
• Auto Switch-Off after 20 seconds without signal.
• AAA batteries and continuous working time is 30 hours.
• Alarm setting: (SpO2 Hi/Lo)   (PR Hi/Lo).
• Suitable for Adult & Children.
• Weight - 55 grams only.