sch911 is absolutely right. This is an indoor camera and totally unsuitable for RV applications. There are outdoor wifi cameras available that can interface with a smart phone via a router however they cost about the same as a full wireless system consisting a dedicated wireless camera and monitor (see innotechrv.com). In my opinion it is far better having a dedicated setup rather than having to connect your phone each time you want to use it. Additionally the smart phone screen really isn't big enough and you have to consider where you put it while you are trying to back up. A permanently mounted unit allows you to use it as a rear vision mirror while you are driving as well as providing back up view when parking.