TESTO 557s - 8.4.8 Restore factory settings

8 Using the product
44
8.4.8 Restore factory settings
The instrument is reset to the factory settings.

The Settings menu is activated.
1
Press [▲] / [▼] to select [Factory
Reset] and press [Menu/Enter] to
confirm.
-
Menu properties are displayed.
2
Start
[Factory Reset]
: Press [▲] /
[▼] to select
[Do a factory reset]
and press
[Menu/ESC]
to confirm.
Press [Back] to quit the process.
-
[Factory Reset]
is carried out.
3
See Setup Wizard.