I'm trying to think about the solution and that's what comes into my mind: To create additional group in the Thresholds console by icf/settings.conf

threshold category TemperatureSensor Temperature sensors threshold Configurations
match   IsManaged TRUE

Note: category matching class is "TemperatureSensor" and not "ICIM_UnitaryComputerSystem".
Then, to create different groups with filters by Description field and for each group apply settings with different threshold values.

But, I'm not sure that it should work :-)

Any ideas about how to realize this ?