ChoiceMMed MD300C63 Unbreakable Fingertip Pulse Oximeter:
Dual Color OLED Displays SpO2, PR, PI, And Pulse Bar.
Adjustable Brightness; 6 Display Modes.
Real-time Prompt For Battery Status.
2pcs AAA-size Batteries; Automatically Power Off.
Weak Or Unstable Signal Mark Provides More Accurate Measurement.
SpO2 Measurement Range: 70% - 100%
Resolution: 1%
Measurement Accuracy: 70% - 100%, ±2% ≤69%:
Pulse Rate Measurement Range: 30 - 250bpm.
Resolution: 1bpm.
Measurement Accuracy: 30 - 99bpm: ±2bpm 100 - 250bpm: ±2%.