Bests & Worsts Reviews from Amazon

I should have listened to other reviews. I am a builder hoping this might solve some issues, but if failed in every way possible except that it found studs in new drywall. Tried it on different walls in a home with new additions and old 60's wall board. Did not find anything but studs and heat signatures. Using it is mostly impossible as it needs to be held against the back of your phone and in one mode you need to hold down a button... Dont waste your time on this. It's a good idea that was brought to market to fast.