recommendable sensor!

I have me for Christmas last year requested a weather station and get the Oregon Scientific BAR 388 HG Wireless weather station silver. Since I am actually quite happy with it (I have to say I'm leaving anyway because more attention to what I see when looking out the window, as in any weather stations or services;)) and I have wanted me to further outdoor sensors ...
But apparently neither the station nor the sensor, which was about to buy are, I have some research that there's sensors can fit and they were a hit!
From the range I was very pleasantly surprised (I was afraid the sites that I chose, would be left unreachable because as walls and ceilings but relatively shielded in a new building there.) - I have a THGR sensor a stick diagonally above the station and the other many walls continue in the garage and they both work great!