Product review (1 stars): Don't waste your money on this
If I could give this zero stars I would. From the start the humidity was off significantly. It constantly read it at between 64-68%.  I live in Phoenix! The only time the humidity is that high is during a rainstorm. My weather apps and TV weather were all reporting the humidity levels to be 7. Also, the temperature is unreliable. Sometimes it is accurate and other times it is off by as much as 20 degrees. I have tried moving the receiver closer to the transmitter, taking out the batteries and letting it reload and moving the transmitter, but nothing helps. Don't waste your money on this!