Dashcams….

I got mine from Amazon. The picture is great, day or night, and it's got a G-sensor for things that go "bump" in the night, lol. There are plenty of choices. . . Mine is over 6 months old so it's probably obsolete!

 

I just bought the cobra CD-R 810. Works great during the day but the night view seems a little weak. It also has a motion detector built into it. Reasonably priced also

 

I ordered a Powerucc Panorama G
My Christmas present lol. Haven't used it obviously.

Review for an older Version Panorama II or Panorama S
https://dashcamtalk.com/powerucc-panoramaii/

 

Check microcenter.com

 

Dieselboss has some good products. where he has had knowledge of the trucking industry, he wont be trying to steer you into a unit that wont perform well.
*note: I am not affiliated with diesel boss, nor am I friends or an employee (tho I do need a job). I am merely plugging for him in his absence.

http://www.dieselboss.com/

 

Thanks.

I have a system that does his requirements.

But the OP refers to two different systems that are miles apart in price. "A camera or two"

"A camera" in the windshield with motion detect is simple and cheap. "Two cameras" with one being weatherproof outside, both with motion detect and night capabilities is also available, and not cheap.

And always keep in mind that you cannot put cameras with IR night beams in them behind flat glass or they just bounce back off the windshield at night and ruin the image anyway.