The “BM1000D” PULSE OXIMETER enables an easy evaluation of the oxygen saturation in the blood and of the heart rate of a subject. The “BM1000D” PULSE OXIMETER is a user-friendly, painless and absolutely non-invasive tool, since the test is made on a finger by means of an infrared radiation. Using the pulse oximeter can be useful to evaluate and monitor breathing functions in hospitals, clinics and at home. The tool is particularly useful for patients suffering from heart failure or respiratory diseases like: pneumonia – bronchial asthma – chronic bronchitis – copd – other pulmonary and pleural diseases.