FIRST ALERT Dual Sensor Smoke and Fire Alarm for Home

The First Alert Sa3210 dual sensor ten-year alarm utilizes both ionization and photoelectric sensors to provide the earliest possible warning, regardless of the type of fire. This is because while all smoke alarms are designed to detect smoke, different sensing technologies react differently to certain fire types.

Photoelectric sensing technology is more sensitive than ionization sensing technology at detecting smoldering fires, such as those caused by cigarettes burning in couches or bedding. These types of fires can smolder for hours before erupting into flames. Conversely, ionization sensing technology is generally more sensitive than photoelectric sensing technology at detecting quickly erruptive fires, like kitchen grease fires or fires fueled by paper burning in a wastebasket.

Powered by sealed, ten-year lithium batteries, this alarm offers continuous protection for a decade without the need for battery replacement. A single test/silence button mutes unnecessary alarms and checks the alarm's functionality. Additionally, an end-of-life timer sounds when it is time to replace the unit.

The First Alert Sa3210 meets UL217 standards and complies with legislative requirements for 10-year battery-operated smoke alarms across relevant U.S. states and cities. This product includes mounting hardware and is backed by a 10-year limited warranty.

It is important to note that the front cover design of the alarm may vary, but the product function remains consistent. To ensure complete protection, it is recommended to place one alarm on each level of the home and in each bedroom.

Trusted for home safety since launching the first residential smoke alarm in 1958, First Alert is the brand consumers rely on most (based on a First Alert Brand Trust Survey in February 2018). The 10-year lithium-ion battery provides continuous power for the life of the alarm and ensures continued monitoring even during power failures.

Equipped with a dual photoelectric and ionization smoke sensor, the First Alert Sa3210 is designed to quickly detect both fast-burning and smoldering fires. Its loud 85-decibel siren sounds to alert occupants of any danger, and the hardwired alarm includes a battery backup for power outages.

In summary, the First Alert Sa3210 dual sensor ten-year alarm offers comprehensive fire detection and protection, meeting the highest industry standards and legislative requirements. Its advanced sensing technology, long-lasting power source, and trusted brand reputation make it an ideal choice for ensuring the safety of your home and loved ones.

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