TESTO 550s - Backlight Brightness

8 Using the product
38
2
Press [▲] / [▼] to select the
backlight duration and press
[Menu/Enter] to confirm.
3
Press [ESC]: 1x main menu view, 2 x measurement menu view.
8.4.2 Backlight brightness
Set the brightness for the display.

The Settings menu is activated.
1
Press [▲] / [▼] to select Backlight
brightness and press [Menu/Enter]
to confirm.
-
Menu properties are displayed.
2
Press [▲] / [▼] to select the
brightness value (25%, 50%, 75%,
100%) and press [Menu/Enter] to
confirm.
3
Press [ESC]: 1x main menu view, 2 x measurement menu view.