Review on VIVREAL 4 In 1 Stud Finder Wall Scanner With LCD Display - Center Finding Beam Finder And Sound Warning For Wood, AC Wire, And Metal Studs (Black/Silver) by Jim Ledbetter

Depending on how accurate you want to hit the stud, this is just another cheaper product at a cheaper price.For hanging picture frame and low weight shelving, this works.Not every reading of dead on center is the same. Going back and forth over the same stud at the same height it gave me different readings. They were minor, but when it came to trying to hit a 2x4, which is actually only 1 1/2”, a half inch is kind of a big deal.Every time I use this, I go back and forth 3-4 times and then hit the center between each of the different "center” readings it gives me.When it came to mounting a heavy tv wall frame I bought a better one and paid a little more.