I think that you might want to do a bit more research on this, but I found that if you can find an insulated cooler to store your camera in it will be safe from the heat.
Check it here. Don't take my, or this guys word on it because cameras are expensive. I would think that this will work, but I would try and ask a specialist, if you can, contact your local camera shop and they will definitely let you know if this method will work.
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