On 03/13/2016 03:48 PM, Don Y wrote:

[snip]

Batteries are cheap. If you wait until it starts chirping (every minute??)
to tell you of a battery failure, you will end up removing the detector
(to silence it) -- and be WITHOUT protection until you happen to
remember to buy batteries AND install them!

If I removed the battery from a detector, I know which one was beeping.
That's MOST of the work done already.

--
Mark Lloyd
http://notstupid.us/

"Most people are bothered by those passages of Scripture they do not
understand, but the passages that bother me are those I do understand."
-- Mark Twain