BRK First Alert SM310 (1046767) Dual Sensor Smoke and Fire Alarm with 10-Year Sealed Battery

Protect your home with the BRK SM310 Dual Sensor Smoke Alarm, designed for superior safety with dual sensor technology. Equipped with both photoelectric and ionization smoke sensors, this alarm offers optimal detection for both slow smoldering and fast-flaming fires. Featuring a sealed 10-year lithium battery, the SM310 provides continuous, maintenance-free protection—no battery changes required for the life of the alarm. A built-in end-of-life signal alerts you when it's time for a replacement, ensuring you're never left unprotected. Features: Dual Sensor Smoke Detection: Combines photoelectric and ionization sensors for faster, more accurate detection. 10-Year Sealed Lithium Battery: No battery replacements needed—ever. Test/Silence Button: Easily test functionality or silence false alarms with one touch. Tamperproof Design: Prevents removal of the power cell for enhanced safety. LED & Audible Alerts: Includes visual power indicators, loud 85dB alarm, and end-of-life notifications. Certified & Compliant: Meets UL217 standards and is compliant with NFPA 72, NFPA 101, ICC, CSFM, and HUD. Technical Specifications: Dimensions: 5.02" Dia. x 2.11" H Weight: 0.47 lb Alarm Volume: 85dB at 10 feet Operating Temperature: 40°F to 100°F Humidity Range: 10% to 95% RH Whether you're upgrading your home safety system or outfitting a new property, the BRK SM310 delivers peace of mind with long-lasting, reliable performance.