Borescope Info ?

Hand held stand alone or smart phone compatible?

I have one for my smart phone it seems to work well. I think it was less than 15 bucks. IF you go that route, make sure it has the correct plug end for your phone. I have to use my old phone, because the plugs changed.

Mine also has a USB plug. And it also came with a wire that attaches to the end so you can fish something out of a small place. Has a light too.