I bought a new 5 in 1. It is used from ebay, but a new generation with the replaceable thermo hygro sensor. It has only one solar panel, but is spot on with temperature, where my 4 year old sensor was off several degrees, especially in cold weather, it would read way too low at night, and a little high in the day. The humidity is also not way high when the fan is on. So far, this one is exactly the same as my beta Atlas. I did see the wind cups get stuck one time, like they are stiff, so some lube will likely be needed, and I will check the rain gauge this weekend.
Have any of you got this model? Is it accurate for you?