Suggestions For Below Zero Outdoor Camera

hi all,

i'm hoping i can get some guidance. i'm looking to build a multi camera system with these kinds of requirements:

- outdoor day/night use

- license plate capture ability

- hoping to have about 4k resolution

- below freezing temperatures at over 8,000 ft above sea level

- PoE distance of up to 1,000 meters

my big concern is that lots of cameras say they can handle below freezing temperatures, but just because a vendor lists it doesn't mean that it will give me reasonably clear images in the middle of winter.

to see clear images in winter for an outdoor camera, do i need an active heater? do many cameras come with these?

also, it seems like it's difficult for me to find DC voltage requirements on cameras, which is a concern for long haul PoE.

thanks for any guidance/advice!

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