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Alarm Type	Smoke Alarm
Power Source	Hardwired
Sensor	Ionization
Interconnects	Yes
Battery	9V Alkaline Battery Backup

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Product Description

Power-Packed Protection with AC Power and Battery Backup

The BRK SMI100-AC provides reliable fire safety powered by a 120V AC supply with a 9V battery backup for protection during power outages. Featuring an ionization sensor for detecting fast-flaming fires, this hardwired alarm ensures responsive detection when seconds matter.

Seamless Installation and Versatility

Designed with a Perfect Mount bracket for hassle-free installation, the SMI100-AC allows precise alignment every time. With interconnectivity for up to 18 alarms, it is perfect for multi-room homes or larger spaces that require comprehensive coverage.

User-Friendly Features

From the latching alarm indicator helping pinpoint the source of an alert to its test/silence button for reducing false alarms, this smoke alarm combines convenience and advanced safety. An included dust cover ensures cleanliness during construction.

Key Features

Dual Power: AC power for reliability and 9V battery backup for outages.
Perfect Mount Technology: Secure, easy installation with wide rotation range for alignment.
Interconnectivity: Connect up to 18 compatible alarms (12 smoke alarms max).
Latching Alarm Indicator: Identifies the initiating unit after an alarm or low battery event.
Test/Silence Button: Simplifies testing of functions and silences nuisance alarms.

Category	Details
Power	Hardwired 120V AC with 9V Battery Backup
Sensor Type	Ionization Smoke Sensor
Interconnectivity	Supports up to 18 Devices, Including 12 Smoke Alarms
Alarm Sound	85dB at 10 Feet
Indicator Lights/Sounds	AC Power: Constant Green DC Power: Flashes Green Every Minute Smoke Alarm: 3 Beeps, Flashes Red Latching Alarm: Flashes Red (2 sec on/2 sec off) After Alarm Low Battery: 1 Chirp Per Minute – Replace Battery Malfunction: 3 Chirps Per Minute – Replace Alarm End of Life: 5 Chirps Per Minute – Replace Alarm
Test & Silence Features	Test All Functions or Silence Nuisance Alarms
Operating Conditions	Temperature: 40°F to 100°F (4.4°C to 37.8°C) Humidity: 10% to 95% RH
Dimensions & Weight	Dimensions: 5.58" Diameter x 1.99" Height Weight: 0.47 lbs
Installation	Must be installed by a qualified electrician. Includes Perfect Mount bracket for secure installation and plug-in connector.
Additional Features	Dust Cover to Protect During Construction Tamper-Resistant Locking Mechanism Self-Restoring Capability
Compliance	Certified to UL217, CSFM, NFPA 72, NFPA 101, ICC

All BRK Electronics smoke alarms meet UL 217 standard and are listed with the California State Fire Marshal. They use the new UL mandated repeating 85-decibel alarm horn pattern. 10-year limited warranty. For a full list of states and cities requiring 10 Year alarms click here.

Don't know what type of smoke and carbon monoxide alarm is right for your home? Check out our guide on how to choose the right smoke detector for your home.

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In The Box

1 Smoke Alarm
1 Mounting Bracket
1 Dust Cover
1 9V Alkaline Battery
1 English/ Spanish Instructions Manual

Info & Guides

User Manual	Download
Specification Sheet	Download

BRK SMI100-AC Smoke Alarm – Hardwired with Ionization Sensor, Battery Backup, and Replaceable Battery