Product review (1 stars): Note sensor installed under an eave with no sun and good air flow exactly according to instructions
AcuWhat????. Followed directions exactly and used fresh batteries.  Worked OK for 1 day.  Second day outside humidity went to 1% on display and stayed in single digits even though actual humidity over 20%.  Note sensor installed under an eave with no sun and good air flow exactly according to instructions.  Will probably just throw this useless thing in trash and go back to Google weather..