It features a photoelectric smoke sensing chamber for optimal sensing smoke particles produced in smoldering fires. The First Alert SA710LCN likewise features an 85dB horn, a supervised 9-Volt Lithium battery power a single button test/silence switch, a silence feature to silence annoyance alarms, a red LED light indicates DC power or alarm.
Optipath 360 technology provides 360-Degree of direct access to the smoke sensing chamber
9-Volt Lithium Battery that will last the lifetime of the SA710LCN
Lithium battery good for entire life of alarm-never replace the battery
UL 217 Listed and Compliant with CSFM, NFPA 72, and NFPA 101