Hi. Does anyone have any recommendations on stud sensors that would be able to "read" through plaster walls? I have tried the Zircon brand and have been unsuccessful. Much Thanks.

 

Good luck. Sometimes the Zircons work, sometimes not. I have almost as much luck with a compass finding the nails in the studs, or just rapping with a knuckle. The fastest way is to drill a small hole and use a wire feeler. I use a piece of aluminum welding rod or a cut up coat hanger, whatever is handy. Once yo find the pair on each side of the hole, you are usually in pretty good shape, but many older homes where not very precisely built and stud spacing often wanders a few inches, let alone the warp from old rough cut 2x4s. At least they really measure 2x4.