Without a seperate enclosure?
Not an expert in this space. Did check Moxa, who I believe specializes in this area. They rate their 'industrial computers' at a max of 75C (167F).
To give a honest answer "all of them will operate in those temps, till they burn up shortly after."
where are you trying to install an NVR? can you move it to a cooler environment? Most electronics wont operate in those temps in general.
Seneca | IPVMU Certified | 12/15/15 01:52pm
To go along with what Eddie said...the electronics will not go that high.
The issue you are facing is the ambient environment that the system is in plus the heat that the system generates while running. They combine to set a max internal temp.
A typical electronic device will top out at 50C....and the military class ones will be up in the 70-85C ranges. You are asking for a 121C top end.
The equipment will need some sort of active cooling environment to be able to survive.
Sure. Put a bullet camera with edge storage in one of these.
Bring the heat!
Either way, you're not going to find an electronic device that works directly at 250F, the solution will involve a cooled enclosure of some sort.
Certainly I would have though so as well but, I guess they are making progress on high-temp electronic technology, now with IC's and discrete components able to function at over 300F:
Many applications, both established and emerging, require components that function in very high-temperature environments. In the past, it was challenging to design such systems reliably due to the lack of devices rated for these kinds of harsh environments. Now, ICs and supporting components designed and qualified to operate in these environments are available, saving engineering time and lowering the risk of failure. Leveraging this new technology and following high-temperature design practices will enable high-performance systems to operate reliably in even more extreme environments than were previously feasible.
Whether there is actually a NVR made like this is another story.
Interesting micro controller that goes to 150C from Infineon.
There's also imaging recorders on space computers... Like they use on solar probes:
But they may out of your budget.