Hey folks,

I just finished talking with a co worker who is recovering from a carbon
monoxide scare. she had been sick for the past while and found out recently
when they checked out her basement and found CO at 700 ppm. She had been
sleeping with the door and window closed and it was making her perpetually
ill. Here's the scary part, she said she had these 1/2 smoke 1/2 CO
alarms in her house. even though the basement was at 700 ppm. (which
according to the specs on my kidde alarm should make it sound in 4 minutes)
none of her alarms sounded. ( I don't know what brand she had)

This made me question my own alarm. I tested it, and it seems to function
correctly.
however, I'm not sure where it should be placed. Reading online some say
that the detectors should be placed on the ceiling, because the CO is mixed
in with the warm furnace air that rises. However, the person who checked
out my co workers house said that the CO generally falls, and so the
detectors should be lower to the ground.

what do you all think?

This is the alarm I have
http://www.kidde.com/utcfs/ws-384/As...O5%20sheet.pdf


Dave