TESTO 400 Instruction Manual page 89


Information about Serial number,
Display number, App version and
Firmware version is displayed.
4
If required, activate
5 If required, activate
6 Check for
Click on

A dialogue box opens.
7 Click on Install update
or
Click on Later to do this at a later date.
If a cable probe with older firmware is connected to the testo 400, the
probe can be updated or removed (see Section 8.6.3).
We always recommend carrying out the probe update, since the
introduction of new firmware always serves a purpose or solves an
existing problem on the market.
Automatic probe update
Automatically check for updates
updates.
if an update is available.
10 Settings
with the slider.
with the slider.
89