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Alarm Type	Smoke & Carbon Monoxide
Power Source	Battery Operated
Sensor	Electrochemical
Battery Type	AA Alkaline
Voice	Yes

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Product Description

BRK CO511B: Advanced Wireless Interconnect Carbon Monoxide Alarm

The BRK CO511B is a cutting-edge carbon monoxide (CO) alarm designed for residential and institutional applications. It offers wireless interconnectivity for up to 18 compatible devices, ensuring a robust Mesh Network for reliable communication on a 915 MHz frequency. The alarm features an electrochemical CO sensor, a loud 85dB horn, and voice alerts with 11 pre-programmed location options. Its tamper-resistant design and extended battery operation ensure durability and compliance with safety standards.

Key Features

Wireless Interconnect: Supports up to 18 devices with secure 915 MHz frequency and Mesh Network.
Voice Alerts with Location: Announces danger and a pre-programmed location when alarmed.
Electrochemical CO Sensor: Industry-leading accuracy in detecting carbon monoxide.
Tamper-Resistant Design: Locks prevent unauthorized removal of the alarm or batteries.
User-Friendly Features: Low battery chirp silence, mounting hardware included, and intuitive test/silence functionality.

Category	Details
Product Name	BRK CO511B
Detection Sensor	Electrochemical CO Sensor
Power Source	3V (Two 1.5V AA Batteries)
Wireless Frequency	915 MHz with 65,000 security codes
Alarm Volume	85 dB at 10 feet
Voice Alerts	11 pre-programmed locations
Operating Temperature	40°F (4°C) to 100°F (38°C)
Humidity Range	10% to 95% Relative Humidity
CO Sensitivity	70 PPM: Alarms within 60–240 minutes 150 PPM: Alarms within 10–50 minutes 400 PPM: Alarms within 4–15 minutes
Wireless Connection	Supports up to 18 interconnected alarms and devices
Test/Silence Functionality	Nuisance Alarm Silence Low Battery Chirp Silence (up to 8 hours)
Tamper-Resistant Features	Locks alarm to mounting bracket Locks battery drawer to prevent unauthorized removal
Dimensions	5.0” Diameter x 2.0” Height
Weight	8.4 oz
Certifications	UL2034, CSFM, NFPA 720, NFPA 101, ICC
Installation	Wall or ceiling mount with mounting hardware included
Additional Features	Mesh Network Communication End-of-Life Signal with temporary silence

The BRK CO511B offers top-notch carbon monoxide detection, enhanced with wireless interconnectivity, voice alerts, and a tamper-resistant design, bringing reliable safety to residential and institutional spaces.

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 Carbon Monoxide Alarm
1 Mounting Bracket
1 Dust Cover
1 English/ Spanish Instructions Manual

Info & Guides

User Manual	Download
Specification Sheet	Download

BRK CO511B Wireless Talking Carbon Monoxide Alarm