I thought about that brand a few weeks ago. I found out that a friend of mine has a Rostech Electronic. wireless barncam.com Model 900.
He has a color monitor, and installed three outdoor cameras to check his cow farm which is about 300 feet. The quality is pretty good. I have not found other models that can go farther like 300 feet. I also heard that many wireless cameras are not that great.
We will keep looking for one...