Universal Security Instruments Hardwired 10 Year Tamper Proof Permanent Power Sealed Battery 2-in-1 Universal Smoke Sensing Smoke and Fire Smart Alarm, Model MI106S

Universal Security Instruments Hardwired 10 Year Tamper Proof Permanent Power Sealed Battery 2-in-1 Universal Smoke Sensing Smoke and Fire Smart Alarm, Model MI106S2-in-1 Universal Smoke Sensing Technology (USST) responds quickly to both fast-flaming and slow-smoldering firesFully interconnectable with up to twenty-four USI-compatible devicesBrackets mount to any standard wiring junction boxIncludes 10 Year Permanent Power Alkaline Batteries. Alkaline batteries are safer and more eco-friendly dispose than lithium batteriesSuitable for houses, apartments, and mobile homesComes with a ten-year limited warranty