I had a CO monitor and it came on at 1/10th the unsafe level, so I returned it and it did the same, so returned that and bought one that plugs in with a 9VDC battery for when I shut off my inverters. It was more accurate but still came on at 1/4 the safe 8 hr. threshold and the battery only lasted on night!!!.. I gave it to my relative. Now Colorado has mandatory CO alarms to sell unless going "as is". Still the same old inaccurate expensive power hogs that do not belong in a solar house like mine.
Then there is where much is produced, and in still day traffic jams can build up to over 50ppm and strat hostility as a poinoning early effect, then tiredness and lack of coordination after 2hrs of 100ppm. Road rage!!!
My Mariner hybrid cares, and shuts off at lights stopping over speeds level ground below 41mph.
I wonder how many road rage incidents, and crashes, are REALLY from CO exposure in heavy traffic.
Another good reason to go with all electric and hybrid ASAP, everywhere.
](./images/smilies/eusa_wall.gif "Brick wall")
