X1805 Oxygen Saturation Detector Medical Monitoring Heart Rate Finger Clip Oximeter, Black, Blue

1. Measuring range: blood oxygen value: 70%-99%, pulse: 508BPM-200BPM
2. Accuracy: blood oxygen value +/-22%, pulse: +/-21% of measured value
3. Power supply: 2xAAA batteries (not included)
4. Purpose: measuring human blood oxygen saturation
5. Net weight: 35.5 grams
6. Dimensions: 60x35x37 mm
7. Applicable scenarios: home, hospital, clinic, etc