I don't know too much about "loose" airplanes and am surprised to find out that the Voltwatch can predict weather. But I stand by my conclusion that it is nearly worthless when used for it's stated purpose. After finding out that it is based on the National Semiconductor LM 3914 chip or a clone, I may have been too generous in my earlier assessment of it's accuracy.

If I wanted to watch flashing meaningless lights, I'll buy a color organ and hook it up to a stereo.