Cargo Hold Temps

[Coochycool]

I was hoping that one of our learned Dogs could advise on a query from a Facebook group to which I subscribe.

Someone hoping to ship a piece of delicate medical equipment asks at what temperature is it likely to be air freighted? Which moreover made me wonder, what are the normal max and min temps achievable aboard a standard modern freighter?

My very limited knowledge tells me that whilst some bays will be pressurised, therefore potentially heated to tropical temps if necessary, others are not, and so presumably left to reduce to ambient temps, be that minus 50 or lower. Am I right? And does variable pressurisation play a part in this equation?

Thanks in advance

Cooch