Braun Pulse Oximeter 1 (Oxygen Saturation, Blood Oxygen Levels, Clinically Accurate, Certified Medical Device) YK 81CEU health_selected_Apr2026 False Teeth Brushes Have Large pets_Jan2025_BestSellers False Teeth Brushes Have Large No need to re apply numerous times like regular block chalk or ball chalk pneumonia or sleep apnea then go to the hospital without delay for an exact diagnosis The SpO2 or PR value reading is unstable > Reposition the finger > Stay still Oximeter won't turn on > Replace batteries > Reseat batteries Device is off > Normal > Replace batteries Low battery indicator > Replace batteries Manufacturer Contact Information