John,
Quote
I also found an interesting note:
"seven years after the initial power-up, the unit will (signal) it is time to replace the unit. The unit will NOT detect CO in this condition.
That's rather un-usual, I can't see why they only have a "life" of 7 years.
How much do one of these detectors usually cost?.
As far as placement goes, I'd want the thing as close to the bed as possible.