Bests & Worsts Reviews from Amazon

For $90 this thing better do a damn good job. It doesn't do any job, at least not on anything besides 1/2" drywall. In other words, it works about as well as a $5 stud finder, for $90. I wanted it to work on concrete walls as it says it does, but it lies. It couldn't find a stud if you hit it in the face with one.