Horrible! I replaced my older models with these, and it's very difficult to change the batteries. One of my units was defective and ALL the alarms go off in the house. I think I have hearing loss from the noise. Do not buy these. I can't believe I spent good money on these pieces of junk.

Install these to replace a different brand that had met their 10-year life in less than a year I have already had to replace six of these and I have three others that I have to change the batteries in about every 3 months these are horrible product

[This review was collected as part of a promotion.] Have ease in your home with KIDDE MODERN DETECT SMOKE ALARM that is battery operated with 2 AA batteries and self -testing alarms. Rest assured with peace of mind even during short term power outages. Batteries should be replaced every 6 months for constant safety. Simple to install with just a twist and click in the mounting bracket. Use anywhere in your home or where you want smoke detector coverage. The KIDDE DETECT SMOKE ALARM has reduced nuisance alarms which include enhanced sensing technology. Add to your home today for a comprehensive safety solution!

[This review was collected as part of a promotion.] I got this product complimentary and would say i like that it uses alkaline AA batteries which is more efficient instead of the more usual 9V battery. Being a cook the sensors are strong and will detect smokey, red blinking and loud alert sounds which goes unnoticed. I am satisfied with the CO2 detection too which helps when the doors are locked more. Must have as the installation is easy too.