Conventional pulse oximeters are believed to measure oxygen concentrations accurately regardless of skin color. While companies who make these products claim they produce consistent results with all skin tones, recent studies have shown reduced accuracy in darker skinned patients during periods of hypoxemia. No commercial products have yet addressed this problem. The goal of this project is to create a more advanced pulse oximeter by integrating it with a spectrometer to address these inaccuracies. This will allow the device to obtain a quantitative value for the patient’s skin tone in addition to a pulse oximeter reading. This device will be tested on adults to see how different skin tones absorb light. By understanding these variations, the hope is to make the device more accurate for everyone, regardless of skin tone. Ultimately, this project should improve pulse oximetry to provide more reliable and precise readings for people of all skin tones.