First Alert SA3210 Dual Sensor Smoke and Fire Alarm

First Alert began when three friends set out to create a commercial smoke alarm. In the five decades since, we have continued to create innovative products, from the first residential smoke alarm to the first battery operated carbon monoxide alarm. By leading the home safety category through reliability, quality and innovation, we follow in the footsteps of our founders and make the world a safer place - One home, one family, one life at a time.

Complies with all current 10 year legislation in U.S states/cities where required The 10 year lithium ion battery offers continuous power for the life of the alarm and provides continued monitoring even if there's a power failure To ensure complete protection make sure to place one on each level of your home and in each bedroom Equipped with a dual photoelectric and ionization smoke sensor to quickly detect both fast burning and smoldering fires Loud 85 decibel siren sounds to alert you to danger