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Alarm Type	Smoke & Carbon Monoxide
Power Source	Hardwired
Sensor	Electrochemical, Ionization
Interconnects	Yes
Battery	9V Alkaline Replacment Battery

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Product Description

Advanced 2-in-1 Protection with 10-Year Battery Backup

The BRK SMICO105-AC Smoke & Carbon Monoxide Alarm combines advanced smoke and CO detection for enhanced protection in your home. Powered by 120V AC with a sealed 10-year lithium battery backup, it ensures uninterrupted safety even during power outages. The alarm is equipped with ionization and electrochemical sensors, latching and interconnect features, and advanced technology for early warnings with reduced false alarms.

Top Features

10-Year Battery Backup: Lithium battery provides continuous protection without needing replacement.
Advanced Sensors: Ionization for smoke detection and electrochemical sensor for CO detection.
Smart Interconnect: Links with up to 18 BRK or First Alert alarms, creating a whole-home safety system.
Latching Indicators: Visually signals the source of alerts, from low battery to the unit initiating an alarm.
Easy-to-Use Features: One-press test/silence button for alarms, with dust cover protection during installation.

Category	Specification
General Details
Model	SMICO105-AC
Type	Combination Smoke & Carbon Monoxide Alarm
Operating Voltage	120V AC, 60Hz
Battery Backup	10-Year Sealed Lithium Battery
Detection Features
Smoke Sensor	Ionization
CO Sensor	Electrochemical
Audio Alarm	85 dB at 10 feet
CO Alarm Levels	Activates at: - 400 PPM CO (4-15 minutes) - 150 PPM CO (10-50 minutes) - 70 PPM CO (60-240 minutes)
Indicator Lights	Constant Green (AC Power), Flashing Green (Battery), Flashing Red (Smoke/CO Alert)
Interconnection and Installation
Interconnection	Up to 18 units (12 Smoke, 6 CO or Heat Alarms)
Installation	Requires qualified electrician; supports wall or ceiling mounting
Dust Cover	Yes (for protection during installation)
Dimensions and Weight
Dimensions	5.12" Diameter x 1.97" Height
Weight	0.55 lbs
Additional Features
Latching Features	Low Battery Latch & Alarm Latch
Silence Options	Alarm Silence & Low Battery Silence (8 hours)
End-of-Life Indication	5 Chirps/Minute
Malfunction Warning	3 Chirps/Minute
Operating Temperature Range	40°F (4°C) to 100°F (38°C)
Humidity Range	10% to 95% RH
Compliance	UL217, UL2034, NFPA72, CSFM, 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 & Carbon Monoxide Alarm
1 Mounting Bracket
1 Easy Adapter Plug for installation
1 Dust Cover
1 9V Alkaline Backup Battery
1 English/ Spanish Instructions Manual

Info & Guides

User Manual	Download
Specification Sheet	Download

BRK SCMICO105-AC Smoke & CO Alarm – Hardwired with Ionization Sensor and Battery Backup