WALABOTProtective Case and 8 Piece Accessory Kit for Android Smartphones, Black

This works way better than any stud finder I have ever used. Shows all studs and wires in the wall. I have only used it on drywall so I don't know if it works on concrete. The only thing I don't like about it is the cable connecting it to the phone comes un pluged easily.

I was sceptical about the walabot actually working, but after doing some test of my own it works great! Once its calibrated it pretty actuate! Great tool to have in the tool box!

It is so cool to locate the precise center of studs and mark them without being off in the slightest. Other stud finders of the past all sucked and had me making extra unnecessary holes in the walls. Seriously detest this and having to patch and paint. This product ends all that bs. Here's a tip though, do not hold a pencil you're using to mark the studs anywhere near it while locating because it is confusing the wood of the pencil with the wall stud and throwing it off. Sit the pencil down, in a pocket, behind your ear, whatever, use to mark, then get it away from the device again. I'm helping my mom flip a house and did an entire walk in closet with this gadget, made life so much easier! Make sure to get one of these whenever you need to secure things to studs, you will love it.

il faut le calibrer souvent !

Ok