The RaeGuard meter is picking something up. It was reading 0.16 ppm in the morning. By evening, it was up to 0.19. When I got in this morning it was a 0.22 and now it is at 0.25. I'm developing a headache, although I don't smell anything.
Earlier today the RaeGuard PID meter outside 117 was reading more than 0.5 ppm. This should have triggered an alarm with campus police and EH&S. Did it? It is now reading ~0.25 ppm. It is not clear whether this indicates detection of chemicals in the air or a malfunction.
Rick, could you please post here whenever the monitor triggers an alarm?