Logostar 300 Temperature Probe settings.

Open c:\program files\logostar 300\settings.ini with notepad 
on the logostar 300 player.

scroll down to [TempProbe] section.

Default values:

[TempProbe]
Model=Original
Location=COM2

model: has 2 possible values. 
Original - default value
SensaTronics Model F - if temp probe is attached.

Location:  this is the com port the temperature probe is connected to.
Examples:
COM1 - typically this is where the temp probe is connected to, may differ on SDI systems.
COM2 - default value for no temp probe.