Ok WTF is this thing? I saw it a couple weeks ago at Home Depot, and I have not been able to find anything about it other than stuff that looks like it was written by them. There's nothing on the box or in the manual that gives any indication about how it works, it just says that it 'detects tornadoes' with "NASA proven methodology".. It looks like snake oil along the lines of magnetic balance bracelets and magic fuel savers to me.. Anyone else seen it?