Product review (3 stars): Good when working
Have had this unit for about a year and a half and have been pleased until recently when the outside readings stopped working.  I have the outside unit mounted on the inside of my front porch eve - completely protected from elements. Changed batteries in both units which didn't seem to help.  Was about to throw it away but decided to open up the outside unit and discovered that one of the leads to the battery was detached and somewhat corroded looking.  Quick soldering job solved the problem and I'm back up and working now.  Like the overall appearance and seems relatively accurate when working, rating reflects my disappointment in overall quality.