Review on 5-in-1 Electronic Stud Finder Wall Scanner by M MARSIAN - Auto Calibration, LCD Display, Sound Warning - Beam Finder for Center Finding Wood & Metal Studs, AC Wire Detection by Don Taniguchi

This product is the big brother of the TH240. I compared two devices side by side (top and bottom) to see if the same rack positions and different rack types could be detected. This product has a natural grip to hold the wall tripod finder and it feels more comfortable. I've only tried 1/2" wall thickness and metal as that's common in my house. The only downside is that you have to hold down the button to turn the unit off. I'm sure there will be a shutdown later on function, but be careful!