OxyO
OxyO Color OLED screen, 6 different display modes
4 level brightness,2 kinds Spo2 wave display 
OxyO Color OLED screen, 6 different display modes
4 level brightness,2 kinds Spo2 wave display 
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Color OLED monitor, 6 different display modes
4 level brightness.
Pulse histogram and 2 kinds Spo2 wave display
Easy to use & high accuracy and repetition
Small in size, and easy to carry
Low voltage alarm display
Auto power-off after 4 seconds without signal
Light weight of 55g (batteries included)
Runs on standard AAA batteries and continuous working time is 30 hours

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