A:AnswerAs long as your cameras are connected to a sync module and the internet, you can access them from anywhere that your phone as an internet connection.
A:AnswerThis is tough. Eero’s I believe can travel up to 50 ft if there is a wall in between. Longer depending on the speed as well if there is not. 100-150ft away is pushing it.
A:AnswerThey do use a type of infrared vision in the dark, which you can adjust the sensitivity of. At standard settings you will get a fairly nice black/white video or snapshot without any external lighting. You can play with it to get it to your liking.