I tried to find it on your Amazon but German was kicking my butt. I did find this one which I liked the look of. It has indoor and outdoor for temp and humidity. Seem to get good reviews but I couldn't read them.

http://www.amazon.de/TFA-30-5013-ele...05136&sr=1-177

This is the one alot of us use. Maybe you can have better luck searching your Amazon than I did. I have one and really like it.


http://www.amazon.com/gp/product/B00...ls_o01_s00_i00