Been meaning to post this for a bit now.  On my sister's recommendation I purchased this Hart studfinder at Walmart.  I think it was about $35.

 

 

I gave it a whirl this summer while working in the garage and I have to say it performs great.  Without a doubt this is the best (of 3 or 4) studfinders that I have used.

The three center lights come on when you are centered over the stud.

 

 

And a yellow light comes on if there is an electrical run in the wall.

 

 

I found it easy to use and accurate.  I used it on both the wall and ceiling in the garage.

The directions say it will work with lath & plaster walls.  I've not tried it on that to know for sure or how well it might work on that.

Based upon my limited use this summer, for the price I give this two thumbs up.

That's a bit more reliably accurate than the tap tap tap method. 

Edited August 11, 20232 yr by Gene Howe

Thanks, Cal!