[. . . ] Radio range 100 to 300 meters outside depending on the associated equipment (the range can be altered depending on the installation conditions and the electromagnetic environment) Product compliant with directive R&TTE 1999/5/CE 1) You can select the permanent display of the room temperature or the set-point temperature. [. . . ] 5°C, then press the MODE button to confirm and move on to the next setting. 3) You can lock the keypad, in which case you cannot change the set-point or the mode. To change the current selection, press the + button, then press the MODE button to confirm and move on to the next setting. The MODE button is used to select the different operating modes of the thermostat ((2)Comfort *, (3) Economy *, (4) Frost protection , (5) AUTO, (6) Shutdown ). Briefly pressing the + or - buttons will give you the room temperature, and pressing the + or - buttons a second time enables the set-point temperature to be changed by steps of 0. Auto Mode The thermostat only displays the room temperature, this mode enables the other associated transmitters (remote controls, programmers, etc. [. . . ] As soon as the battery level indicator is lit, you have approximately one month to change the batteries. [. . . ]