Yes, absolutely. 

Yes, but it requires extra adapters. 

You will see data from the outside sensor on your console. Look for rain, wind speed, wind direction, UV strength, temperature etc 

The display console unit can run on batteries only. However, without the a/c power cable, the display only stays on for seven seconds, and to get the display to come on, one has to press a button on the display console. Also, when running on batteries only, the unit will not maintain a wifi connection, so it won't reliably upload weather data to WeatherUnderground or other weather networks. 

You can use that for that too. I make videos with it and am satisfied. Sometimes the ring is reflected, depending on the surface.