Has anyone else seen extremely high EMF readings- 333 milligauss- on their EMF-390? I've seen spikes up to 50mg since I've owned this meter; but this morning, I woke up and heard my meter alarming snd found a maximum reading of 333 +/- 5 milligauss. I've walked around the neighborhood and am seeing this same general high reading. I drove in my car around the adjacent neighborhoods- 2 mile radius- and saw the same high readings. I'm thinking there has to be a problem with my meter. Any ideas?