Switching Background Illumination On And Off; Setting Units And Autooff - TESTO 552 Instruction Manual

4.3 Switching background illumination on
and off
- Switch the instrument on.
1
- Press

The background illumination switches
on or off.

4.4 Setting units and AutoOff

The set-up menu must always be completely navigated through, even
if only one parameter needs to be changed.
- Switch the instrument on.
1
- Press
2
.
to change settings.
4 Operation
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