In my case Extech did solved my problem, I got this meter from a local auction site from a person unopened box and leads in a sealed package, Extech could always say go back to your seller like most manufacturers do, and I would be stuck with a meter full problems, so I am happy with the solution.
But, I don’t want to sound selfish I think Extech would do that to anyone and that’s not a thing you see now days, of course the meters they sell are not cheap, after sales care is nothing more than normal and that still doesn’t make up with the problem these meters are showing so I really like to believe Extech is taking this seriously and considering to review their business with the manufacturer they hire to make these meters, this very same model had also a recall on first series because they were showing problems with low battery.
Like Bored@Work said Extech won’t go public and tell their steps against the manufacturer, but what company does that? At this point the best thing would be a clarifying message against the buyers of these meters, one bad news grows a lot faster than good news.