How to Use Zircon Wood Stud SuperScan Advanced Stud Finder

I just got this. One thing the video didn't mention is sometimes when it goes over something - all three green bars and the stop sign flash together. What does that mean?

it is so confusing in practice and does not act like this , it frantically goes off and when i return backwards I get different location and results , its is never as smooth as this

Honestly this was an expensive piece of crap. I've followed every instruction and every video, and drilled fifteen holes in the wall without finding one baton! To make matters worse it changed its mind several times as to where the baton is/was but it wasn't there anyway! At one stage I went across a full 6 meter wall and it didn't find one baton!

DO NOT buy this fucking garbage

This is the most inconsistent stud finder I have ever used. It's wild how BAD it is