-Dual color OLED display
-Four directions with six display modes.
-High accuracy and durability
-Battery capability indication.
-SpO2, PR, SpO2 bar graph and pulse waveform display.
-Power supply: two 1.5V AAA batteries.
-Operation menu for function setting.
-Automatic switch-off function for power-saving.
-Power consumption: below 30mAh
-Dimension: 58mm*35mm*30mm

Specification:

Standard Configuration: SpO2, PR

1.SpO2

Measurement range: 70%~99%
Accuracy: ±2%(80%~99%), ±3%(70%~79%), 0%~69% unspecified
Resolution: 1%
Low perfusion:<0.4%

2.PR

Measurement range: 30bpm~240bpm
Accuracy: ±1bpm or ±1%
Optional Configuration: USB, Menu function
Color: Black, White, Golden