FIRST ALERT Dual Sensor Smoke and Fire Alarm, SA3210 , White

While all smoke alarms are designed to detect smoke, different sensing technologies react differently to certain types of fires. The fist alert Sa3210 dual sensor ten year alarm makes use of both ionization and photoelectric sensors to offer the earliest possible warning-regardlesss of the type of fire. Sometimes a fire can smolder for hours before erupting into flames. Photoelectric sensing technology is more sensitive than ionization sensing technology at detecting these sorts of smoldering fires, like those caused by cigarettes burning in couches or bedding. Other fires erupt into flames quickly, like kitchen grease fires or fires fueled by paper burning in a wastebasket. Ionization sensing technology is generally more sensitive than photoelectric sensing technology at detecting these sorts of flaming fires. This alarm is powered by sealed, ten year lithium batteries to provide continuous protection for ten year without battery replacement. Single test/silence button mutes unnecessary alarms and tests function. End of life timer sounds when it’s time to replace your alarm. First Alert Sa3210 meets UL217 standards and complies with legislative requirements for 10-year battery operated smoke alarms. This product includes mounting hardware and is backed by a 10 year limited . Intelligent sensing technology reduces non-emergency or nuisance alarms

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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
Loud 85 decibel siren sounds to alert you to danger
To ensure complete protection make sure to place one on each level of your home and in each bedroom
Meets UL217 standards and complies with legislative requirements for 10 year battery operated smoke alarms
Equipped with a dual photoelectric and ionization smoke sensor to quickly detect both fast burning and smoldering fires
First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)