Yeah, I have ordered the one you recommended in another thread on this topic (well, its drop-in successor). I guess I'll just wait for it to arrive.
The 005 did give me one reading initially, first thing. Just one. 30% humidity, 27 degrees Celsius. Since then, it's been all zeroes no matter what I do. But that very first reading gives me a glimmer of hope that it could be done. Probably not worth the hassle, though.