BRK SMI110 — Ionization Smoke Alarm with 10-Year Sealed Lithium Battery Specifications

Specifications for the BRK SMI110 Ionization Smoke Alarm with 10-Year Sealed Lithium Battery — a self-contained smoke alarm requiring no battery replacements for the life of the unit.

Key Features

• 10-Year Sealed Battery for continuous protection — no battery replacements required for the life of the alarm
• Eliminates low battery chirps — no low-battery chirping for a decade
• 10-Year smoke sensor and end-of-life signal — provides an audible notice when the alarm itself needs to be replaced
• Test/Silence button — one-touch access to temporarily silence or test the alarm
• 10-year limited warranty

Architectural and Engineering Specs

• Ionization sensing chamber
• Self-restoring after alarm condition clears
• Powered by a sealed 10-year lithium powercell with a tamperproof design that prevents the powercell from being removed. A low-power warning causes the alarm to "chirp" at end of service life; upon end of life, the unit meets UL requirements for disabling the alarm and preventing reinstallation to the mounting bracket.
• Solid-state piezo horn rated at 85 dB at 10 feet
• Visual LED power-on indicator confirms the unit is receiving power or is in alarm
• Full-function test button — stimulates the sensing chamber to simulate smoke, triggering the alarm; also silences nuisance alarms
• Rated for operation between 40°F (4°C) and 100°F (38°C), 10–90% relative humidity
• Includes mounting hardware; listed for wall or ceiling mounting
• Meets applicable requirements of UL217, CSFM, NFPA 72, NFPA 101, and ICC

Installation

Installation must conform to NFPA 72. Always check local building codes. Follow placement guidance in the user's manual sections "Recommended Locations for Smoke Alarms" and "Locations to Avoid for Smoke Alarms."

Technical Specs

Indicator Lights / Sounds

Manufacturer

© 2024 Resideo Technologies, Inc. Manufactured by Resideo Technologies, Inc. and its affiliates. — brkelectronics.com