I bought the weatherproof, battery operated DVR with the color camera for my research on birds. Everything works very well. The system was running without any problems in 105 degree temperatures. The various settings allow me to use the system in many different areas. I did have to buy a wide angle lens, but those are inexpensive. I recommend using electrical tape to tape the connectors onto the wires for the batteries as those do tend to fall off easily. I also bought the portable monitor (a small, portable TV), which allows me to check that the camera is in the correct position and the settings are correct. This is a great system and I plan on buying another soon.
Emily from Tucson, AZ