I've started having problems with my third uei gas detector and even if they will replace it again I don't want it. There is nothing more embarassing then having your fancy test equipment malfunction in front of the customer. What is everyone else using and how does it hold up? Three failures in less then a year is too much, I don't think I'm being rough with it. It stays in the foam lined box that I keep my combustion analyzer and manometer in and both of those are fine, and they all come inside where its warm at night. So now I figure its just the low quality made in tiwain crap and I'm looking to replace it preferably with something made in usa.