OLED display, brightness adjustable.
2.SpO2 Measuring Range (0%~100%, (the resolution is 1%).

3. Accuracy70%~100%:±1% ,Below 70% unspecified
4.PR Measuring Range25bpm~250bpm, (the resolution is 1bpm)
5.Accuracy±1bpm or ±1% (select larger)
6. Measurement Performance in Weak Filling Condition
7.SpO2 and pulse rate can be shown correctly when pulse resistance to surrounding light
8. Power Consumption less than 25mA
9.VoltageDC 2.6V~3.6V
10. Power Supply1.5V (AAA size) alkaline batteries × 2