Peace of mind is so gratifying it is hard to describe. I feel so much better having these installed. Not a big deal but was unexpected.

From day 1 it flashes which drives me nuts at night. Pretty sure they are deliberately programmed to wake up people at 3am randomly. First alert has only a tiny hole for each, so you have to look through the unit rather than at the unit to see them.

Two of these miserable products were installed, one upstairs and one downstairs. Even though they’re hardwired in, they burn through batteries in less than a year. Don't buy any product from first alert/brk.

Amazon has a no refund policyon his product. It is not returnable. That plan never materialized.

The firex and kidde battery drawers slide straight open and shut. Unfortunately, it sticks up far enough to keep the battery from actually going into the drawer. They go off just from opening the oven door.

It is now almost 1 month now and they are chirping incessantly (about every 60 seconds) just as the old units were. The third one chirps every few seconds. Even when you eventually get the brand spanking new battery in there, there's no guarantee that...  Read More