On Tue, 15 May 2012 02:50:22 -0700, mike wrote Re
How Much CO is too much?:

So, took it outside and it reads 28PPM.
There's a light breeze, so any local source oughta dissipate??

It looks like you have a CO source upwind of you. Bad news.

I wonder what it would read at ground level in Hong Kong?
--
Work is the curse of the drinking class.