CO Detectors

Anyone know if there is any problem in buying a battery operated "home" CO
detector and mounting it under your seat or somewhere inconspicuous? What
is the difference between a "home" unit and an "aviation" unit?

Now before you get crazy and call me cheap...I know that the credit card
pill type is only a couple dollars, but it does not provided an audible
alarm and a problem may go undetected for some time. Any other "aviation"
detector with an audible alarm is near or over 180 smackers. This is in
contrast to a "home" battery operated CO detector that you can buy for 6 to
12 dollars. What is the difference other than one is marketed to aviation
consumers and the other is targeted to home-owners?

Kobra