Product review (4 stars): Nice
So much nicer and easier to read than my old AcuRite which used AAA batteries and I had to replace about once a month.  The outside sensor is hanging from a tree branch so it get wet on a regular basis.  So far it has not failed and never seems to loose the connection with the base station.  I've had it a couple of months now and have yet to change the batteries.  So far so good.