wrote in message
...
On Tue, 15 Mar 2016 13:57:09 -0400, "(PeteCresswell)"
wrote:

I've got Home Depot's fanciest-schamanciest stud finder: "Zircon HD 70".
This one claims to find the center of the stud and has a precise-looking
display.
But I am getting significantly-different "center' locations each time I
locate the same stud... especially when coming in from the left vs right
and vice-versa.
My workaround is to take a bunch of measurements, take the center of the
resulting cluster as the center of the stud, and then drill little pilot
holes starting 7/8" to the left/right and working inwards until I hit
wood.
The Question: Is this about all I can expect from this thing, or might
I be missing something?

This one doesn't require any movement ; and can also locate things
besides studs - if they are not too deep into the wall cavity

http://www.leevalley.com/en/wood/pag...28&cat=1,43513

I thought that looked interesting, and I had never seen one like that
before.

But, one thing that I noticed in the photo of the device in action is that
it detected the pipe on the right that is behind the wall. We can see that
it is a pipe because the wall is open. But, in real life, without being
able to see what is behind the wall, would the readings look like there were
two studs behind the wall? And, couldn't that lead to someone thinking the
place on the right was a good place to nail or screw into the wall because
it looked like it was a stud location and not a pipe location?