Does anyone recognize what is pictured below? I mentioned in another thread that my County is doing a full reconstruction of one of the County roads, about 3 miles worth. Today 5 of these appeared dispersed along the project on the sides of the road, they don't seem to be equidistant. What I do know is the solar panel charges the 12 volt battery and there is an antenna on it. What I don't know is what's in the mailbox. I wasn't comfortable touching it not knowing anything about it and it not being mine. Is it some kind of guidance system for machines?