BRK®First Alert® Hardwired smoke alarm featuring photoelectric detection. 
 • AC 120V Interconnectable with Silence, Enhanced Interconnect and Latching features. 
 • Includes a 10-year sealed battery backup for streamlined installation and maintenance. 
 • Features enhanced LEDs for easy diagnostics, SoftCue™ Replacement Reminders, and optional Trim Ring. 
 • MFG # SM6W10A