The finger pulse oximeter (oximeter) is a noninvasive device designed to instantly measure oxygen saturation blood hemoglobin (SpO2) and heart rate (HR). Diagnosis is complete and fast: Pulse oximeter is a practical tool with a low energy consumption. The device is able to monitor hemoglobin saturation and heart rate through the patient's finger, providing an immediate result that can be easily read on the display. Diagnosis is for everyone Pulse oximetry can be practiced both by doctors and health professionals, also at home and not necessarily by specialized personnel. Based on the values, it is possible to determine if it is need to contact a specialist or not, in order to receive medical and precise instructions.