Product review (5 stars): It seems pretty accurate, I'm in a cold climate but was ...
Wanted  something basic, it got decent reviews and is a bestseller.  It seems pretty accurate, I'm in a cold climate but was having high humidity issues and am trying to work that out.  This is a very basic devise and only required the included battery for setup, I pushed a button to change to Fahrenheit and that was it.  A smiley face tells me I'm in the comfort zone.  The company sent me an email to make sure I was happy with this device...very nice for a small purchase!