[amerkhalid]

I bought a thermal camera as a fun toy, it is great at finding studs especially for walls that face outside. Also you can see pipes easily when hot water is running through them.

But it was not cheap, cost about $300.

If you just want to just find studs, use magnetic stud finder. Cost about $10. Very easy to use and accurate.

[mrgoldenbrown]

Cheap stud finders are only accurate for some wall construction types. They do not work on my older style plaster and lathe walls, for example.