I have a Davis Weather Wizard that my wife gave me for my birthday. The positive thing I can say is that it usually works. The negatives are that it's not well made and the display freezes up from time to time. To fix the display requires unplugging from the wall charger and removing the battery. Davis customer service confirmed that this is a problem and recommended a surge suppressor on the wall charger...didn't make any difference.If I had it to do over again, I'd look for a better made system.