Temperature when drying filament

I have set my 2 Pro to dry some PETG, it is telling me the temperature has reached the target of 65 deg C, however i placed a thermometer in inside the AMS and its only showing 48 deg. Not sure what the temperature refers to, maybe the air blowing into the filament is at 65, but not the actual chamber itself ?.
Anyone else checked this ?

Are you sure your thermometer is not in fahrenheit??

Nope, it’s Def C, it would massively wrong for F, 65 C is 149F !

Try putting in a support ticket, see if its a user error or machine error.