Beurer Oximeter BT PO60 backpack 3614227748323 The Lego Creator Off 3614227748323 combining a delicate design with a touch of tropical flair Health control the oximeter is suitable for controlling and regularly monitoring oxygen saturation respiratory diseases such as asthma COPD and other lung diseases can lead to a drop in oxygen saturation Brightness Function To adjust the desired display brightness press and hold the function button during operation If you change the settings of the display format and brightness the basic setting will be displayed again when you turn it on The display format and brightness must be re entered after each turn on the device