Without modification the Almond+ does not have an antenna connection that you can use. I DID use my Almond+ (and an Almond 3) with our camper in the past. I switched the mode so that it connected to the campground wifi and then provided my "home" wifi for my devices. This was more to try out some home automation in the camper than the wifi though. In the end, I just had our wifi devices connect directly to the campground wifi (the few times we absolutely had to) and used whichever Almond for the HA.
