First Alert Smoke Alarm | Slim Design | 10-Year Battery | SM210 HOUSEHOLD Its laminated construction resists rough

Its laminated construction resists rough handling and break-in attempts

Molded Top with Tool Slots: Keeps tools and hardware within easy reach

backlit digital display ensures your weight is clearly visible even in dim lighting

Temperature Range: -40°F to 140°F

sleek finish

First Alert Smoke Alarm | Slim Design | 10-Year Battery | SM210 HOUSEHOLD Its laminated construction resists roughElevate safety in your home with the First Alert SM210 Smoke Alarm, featuring a slim design and worry free maintenance thanks to its integrated 10 year sealed battery. Designed to detect dangerous smoke quickly, it uses a reliable photoelectric sensor to respond efficiently to smoldering fires, offering early warning when you need it most. Measuring approximately 5. 1 inches in diameter and about 1 inch deep, this unit blends discreetly into ceilings