External SpO2 probe can be connected18.External SpO2 probe can be connected. Display of SpO2 value. Display of pulse waveform. Accuracy under low perfusion: low perfusion 0.4 %, SpO2 accuracy: ± 4 %; PR 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.
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