Product review (5 stars): Accurate!
Most accurate humidity reading according to my tests.

I already owned 2 Oregon Scientific devices and 1 Accurite.  The readings did not match.  Used the salt test and found that neither was 100%.  The Oregon Scientific's were off by crazy %'s.  Accurite was only by a couple of %.  Purchased this little Vicks guy thinking that since it's for health maybe it would be the most accurate.  Tested and this was almost right on the nose accurate.  Guess it's confirmed, when you want accurate humidity go Vicks.