Finger pulse oximeter with an LED display that allows pulse values to be displayed, it contains large digits that make it easy to read. In addition to heart rate, it also measures arterial oxygen saturation (SpO2), which indicates the percentage of hemoglobin in the arterial blood that is loaded with oxygen. Its small and lightweight design makes it very easy to carry. The battery provides 36 hours of autonomy.Accurate and safe product. Suitable for home use.