Select the measurement type Flue
gas with [▼] and [▲] and confirm
the selection with [MENU/ENTER].
Carry out the measurement
If required, the measurement device can manually be zeroed in fresh
air.
Start measurement: select [Start] with the right function key.
The measurement is started.
Quit measurement: select [Stop] with the right function key.
The measured values are shown on the display.
In case the measurement device is connected with the testo Smart App,
the measured values can be saved in the app with the right function
key.
Remove flue gas probe from the flue gas duct and purge with fresh
air.