Product review (4 stars): Sensor bad due to Batteries
I have had this unit since July 2015.  I LOVE KNOWING THE TEMPERATURE AND, IN FLORIDA, THE HUMIDITY IS EVEN MORE IMPORTANT!

Worked great once i found a spot out of the sun and rain. Before...when the sun hit the sensor the temps were about 5 - 10 degrees too high.

Now after about 18 months the unit locked on a temp and humidity, I checked the sensor and it looks like the battery oozed out? Swapped in new batteries and now the sensor seems dead, maybe the batteries ruined it?  So I was about to buy a replacement sensor (model 00609A1TX - see Amazon AcuRite 06002M for $12.99), then I see the entire unit for $21.99...heck I figured I would get both receiver and sensor, maybe the new sensor can feed both the old receiver and the new receiver...one in the kitchen one in the bedroom.  We will see...