Display of SpO2 value. External SpO2 probe can be connected. SpO2 accuracy: ± 4 %;. Display of pulse waveform. Display of PI value(selection function). Display of pulse rate value and bar graph. Accuracy: ±2 bpm during the pulse rate range of 30 bpm ~ 99 bpm and ±2% during the pulse rate range of 100 bpm ~ 250 bpm.
eBay