**This alarm replaces the SA350B alarm**
BRK First Alert SMI110 (1046858) features a dual ionization smoke sensing chamber, an 85 dB horn, a sealed 10-year lithium power cell power supply that is permanently installed, a single button for test/silence and a red LED that blinks to indicate unit is receiving power. The tamperproof design will not allow the powercell to be removed. The low power warning indicator will cause the alarm to “chirp” when it reaches the end of its service life and needs to be replaced. Upon end of life, the unit meets UL requirements for disabling the alarm and non-reinstallation of unit to mounting
bracket. Designed for surface mounting, the SMI110 (1046858) includes mounting anchors and screws. Includes a gasketless base for easy installation and a new mounting bracket that keeps the alarm secure over a wide rotation range to allow for perfect alignment.
10-Year Battery Smoke Alarm
- 10-Year Sealed Battery, for continuous protection. No battery replacements required for the life of the alarm.
- Eliminates low battery chirps. No low battery chirps for a decade.
- 10-year smoke sensor and end of life signal. Provides audible notice when the alarm needs to be replaced.
- Test/Silence Button, temporarily silence or test the alarm with one-touch, easy access button.
- 10 Year Limited Warranty
- Listed to UL217 8th Edition Standard














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