
This item is unusable. You can stick a screwdriver in the wall to find the studs with the same success. No matter what settings you use, they will give zero or false readings on anything other than a perfect wall of 1/2 thick drywall and pristine putty. If you have any violations, forget it. It also responds to the pressure you put on it during the scan. Forget it.

β Stainless Steel L-Square, Size 3-Inch x 4-Inch, Zona 37-434
8 Review

π Johnson Level and Tool 400EM-S 12-Inch Heavy Duty Metal Combination Square for Professionals, with Inch/Metric Measurements, Silver - 1 Square
8 Review

Kapro 307-08-TMS Try And Mitre Layout And Marking Square With Stainless Steel Blade, 8-Inch Length
18 Review

π² Johnson RAS-1B Johnny Square: Professional Aluminum Rafter Square, 7'', Silver - Top Quality with 1 Square
8 Review