Great - works as expected!

Eventually got them all up and tested them--all work great.

Great price and works fantastically!

A very good product, work perfect, it can safe life, I will buy it

Alert, however these seem to be working well.

These work excellent

Tested and works perfect.

Cheaper than new battery each year and replacement is a great way to make sure you have best working detectors.

Got 2nd degree burns on my legs, but these worked great

Replaced old alarm and this one works well

This works well as it has sounded off at least more than once when my husband has been cooking

These work great, maybe even a little too great

This one worked well the night I burned dinner!

Arrived in a timely manner, in perfect working order.

Installed easily and have worked well for several months now.

Seems to be working great.

GreAt for the price, easy g o install, easy to turn off as it is very sensitive, you just have to remember to turn it back on