2 to 5 business days
Display mode: 1.1 inch color OLED screen display. Display resolution: 96*64. Pulse rate measurement range: 30bpm ~ 250bpm (resolution is 1bpm). Accuracy: ±2bpm or ±2% for large values. Error under weak perfusion: When the pulse filling degree is 0.4%, the oximeter can correctly display the blood oxygen saturation and pulse rate values, the blood oxygen saturation error is ±4%; the pulse rate error is ±2bpmor ± 2% takes a large value. Resistance to ambient light interference: The measured value of blood oxygen indoor natural light and existing illumination source is less than ±1%compared with the measured value under darkroom conditions.