Product review (5 stars): Great Product, low price, EXCELLENT Customer Service
When I unpacked and inserted the supplied battery, the unit showed Humidity at 10%. Three days later, it was still stuck on 10%. I called the number included in the user booklet. A very professional "real person" answered the phone directly. I told her the problem, and she immediately offered to send a free replacement right away. When I asked how to return the defective unit, she said to just throw it away (I kept the battery). She also reminded me to Register my purchase online for a free extended 3 year warranty. The new Unit arrived a couple of days later, and worked fine out of the box. Now, over a week later it still agrees with three (more expensive) competitors' Units stationed in different areas of the house.