DUAL SENSOR SMOKE AND FIRE ALARM

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Smoke alarms are designed to detect smoke, but different sensing technologies react differently to various types of fires. The First Alert Sa3210 dual-sensor, ten-year alarm utilizes both ionization and photoelectric sensors to provide the earliest possible warning, regardless of the fire's nature.

Smoldering fires, such as those caused by burning cigarettes in couches or bedding, can smolder for hours before erupting into flames. Photoelectric sensing technology is more sensitive in detecting these types of fires compared to ionization sensing technology. On the other hand, ionization sensing technology is generally more sensitive at detecting quickly erupting fires, such as kitchen grease fires or paper burning in a wastebasket.

The alarm is powered by sealed, ten-year lithium batteries, ensuring continuous protection for a decade without the need for battery replacement. A single test/silence button mutes unnecessary alarms and tests the alarm's functionality. An end-of-life timer sounds when it's time to replace the alarm.

The First Alert Sa3210 meets UL217 standards and complies with legislative requirements for 10-year battery-operated smoke alarms. The product includes mounting hardware and is backed by a 10-year limited warranty. The front cover design may vary, but the product's function remains the same.

The 10-year lithium-ion battery offers continuous power for the life of the alarm and provides continued monitoring even during power failures. The loud 85-decibel siren sounds to alert you to danger, and the hardwired alarm includes a battery backup for power outages.

To ensure complete protection, it is recommended to place one alarm on each level of your home and in each bedroom. The First Alert Sa3210 complies with all current 10-year legislation in U.S. states and cities where required.

First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958, according to a First Alert Brand Trust Survey conducted in February 2018.

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