Electronics would have to be rated for high operating temperatures this sort of device would see outdoors. That depends on local climate and on details of physical construction, of course, but, by and large, industrial temperature rated (-40C to +85C) electronics would have to be used.

Also, this (and the original LOSS proposal) would run afoul with the FCC and similar regulatory agencies outside of the US. This will make it yet another government agency to cross swords with.