Hey Chris,
I haven't had any issues with either band.
I have had mixed luck with them in general.
On one job, we just couldn't use it because there were crazy temperature swings being shown.
We even installed a different model next to it, and that one acted completely normal.
We went through all of the goofy HZ-THSTAT stuff with TB ... wall insulation type, no drafts in the hall, wait half an hour for it to settle in, etc.
Maybe the device is just overly sensitive to other interferences (RF, psychic mind waves, gamma rays, alien rays).
One recommendation ... resist the urge to punch it through the drywall when it just decides to wait minutes to respond to touches on its screen.
Just breathe and walk away shaking your head.
I want to love them, I really do.
Good luck,
Brian
