TESTO 552 Instruction Manual page 23

The testo 570 will only connect to the testo 552 once the Evacuation
mode has been activated. When used as a probe, the testo 552 cannot
be operated, all keys are deactivated.
In order to be able to use the readings from the testo 552 via the testo
570 in the EasyKool software, you need EasyKool software version 4.0
or later.
- Connect the connecting cable to the
1
MiniDIN probe socket of the testo
552.
- Connect the connecting cable to the
2
front-end MiniDIN probe socket of
the testo 570.
- On the testo 570 set Evacuation
3
mode.

The testo 552 switches to Slave
mode.

The keys of the testo 552 are
deactivated.

The readings are transmitted to the
testo 570.
- Remove the connecting cable.
4

The testo 552 exits Slave mode.
4 Operation
23