Product review (1 stars): a neo luddite fights the brave new world
  from snooder dog on August 9, 2017

this thing worked reasonably well until the day that it just quit dead. screen goes blank, battery changes do nothing. out 28 bucks. in my case it lasted under a year. sick of high tech mirage solutions to life's common problems? go retro, shun new age technology (made in china of course), go back to the tried and true from yesteryear. in this case, get and old fashioned metal coil outdoor thermometer (round, 6 - 12 inch diameter). 6 to 9 bucks here, much cheaper in junk stores. they last forever.  if its out of calibration, just live with that, made the adjustment in your head.  then get some light finish lumber, long brads, thin - bit drill, small screws, etc. this doent not require a degree from m.i.t.  mount this thing on a wood arm lightly on the outside of your window where it will be easy to see, about 6 inches plus from the window. get a mini flashlight to see it if necessary. you should have a flashlight like this around anyway. .............. voila! a second separate simple indoor thermometer, and your all set. it won't break down, and nobody has ripped you off.