Product review (5 stars): This unit has some nice features for a great price
I bought this to monitor the temperature and humidity in my chicken coup, I've been using it for about one week.  This unit has some nice features for a great price.  I have the remote unit about 60ft away and the signal is strong, even when I take the head unit into the basement.  The features:

Records High and Low temps and humidity since last reset
Indicates temp and humidity trending - increasing or decreasing using arrows
Completely wireless with no set up
Controls are easy, only three buttons on the back to control all functions