Oxygen level indicator in the ox blood

Function: measurement of arterial saturation in oxygen (SPO2) and heart rate (pulse). It is particularly suitable for people suffering from the following diseases: - Heart insufficiency - Chronic obstructive bronchopneumopathy - bronchial asthma it can also be used during high altitude sports with adjustable brightness screen display of the small and light, compact - at home and in movement Automatic Displacement Display of battery replacement with the button reverse ! The battery is not included!