Wireless connection so when one alarm is triggered, all alarms sound
Exclusive voice warning with programmable location to help identify in which room alarm was initiated
Single button silence and test

Powered by sealed, ten year lithium batteries to provide continuous protection for ten years without battery replacement
Combination photoelectric smoke and electrochemical carbon monoxide sensors detect deadly smoke, fire, and CO hazards
Nuisance free photoelectric technology reduces false alarms that result from cooking and shower steam