Product review (2 stars): Eats batteries!
I purchased this in April 2016.  The first 6 months it worked well.  Then it started needing batteries more often.  The past 3 months it has been using batteries at an increasing and alarming rate.  I am replacing the batteries in the outdoor unit at least once every 7 to 10 days.  The indoor unit needs new batteries about once a month.  This didn't happen when it was new, and it isn't due to the weather.  It started happening when the weather was still mild and the unit is not damaged.

I plan to notify AcuRite about this for resolution to the problem.  The unit has a one year warranty, but it sure didn't last that long. I like the layout and size of this product but I shouldn't have to buy a replacement.