Narigmed’s oximeter is suitable for various environmental measurements, such as high altitude areas, outdoors, hospitals, homes, sports, winter, etc. It is also suitable for various groups of people such as children, adults, and the elderly. Easily cope with physiological disorders such as Parkinson’s disease and poor blood circulation. Usually, most existing oximeters have difficulty in outputting parameters (the output speed is slow or ineffective) in cold environments and poor blood circulation. However, Narigmed’s oximeter can only quickly output parameters within 4 to 8 seconds.