I bought one to use on a sewer line in my basement. You get what you pay for. Fixed focus, so you can only see stuff that's pretty close, I'd guess under 6 inches, maybe less. The camera is small, and the cord is very flexible, so you can't push it, and the little spring thing which is supposed to be used for stability is pretty much useless. I fastened the camera to a piece of stiff wire, which helped. Field of view and orientation was still a problem, but with care and practice you might be able to get some use out of it. It may be better as a borescope (for which it was designed, I suppose) where the field of view is less.