BRK CO5120BN, 120V AC/DC, Hardwired, Carbon Monoxide Alarm, 9V Battery Backup
BULK ORDER Quote.
How Bulk Order Discounts Work
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1) Add everything you need to your cart
Shop the site and add all the products and quantities you want — just like a normal order.
2) Open your cart drawer and submit your cart
When you open the cart drawer, you’ll see a Cart Whisper section that looks like this:
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Click “Submit Cart to Support” to send your cart to our team.
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Short message (what you want / any special notes)
✅ Important: Include your shipping address in the message.
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4) We review and send your custom quote
Once we receive your cart submission, we’ll:
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Review your cart items and quantities
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Apply any eligible bulk discounts
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Send you a custom quote with final pricing (and shipping/tax if applicable)
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Notes / Special requests:
BRK CO5120BN: 120 Volt AC/DC hardwired Carbon Monoxide alarm with electrochemical sensor, 9V alkaline battery backup, 85dB alert, interconnectable up to 18 devices, UL listed.
- Manufacturer: BRK Brands, Inc. (a subsidiary of Resideo Technologies, Inc.)
- Brand: BRK
- UPC: 029054856173
- Model Number: CO5120BN
- Alarm Type: Carbon Monoxide Alarm
- Sensor Type: Electrochemical
- Power Source: 120 Volts AC, 60Hz Hardwired
- Battery Backup: 9V Alkaline (included)
- Alert Sound Level: 85 dB at 10 feet
- Interconnectable: Yes, up to 18 compatible devices (12 can be smoke alarms)
- Operating Temperature: 40°F to 100°F
- Humidity Range: 10% to 95%
- Mounting: Wire-in
- Dimensions: Diameter: 5.4 in; Height: 1.9 in
- Weight: 0.4 lbs
- Features: Intelligent Sensing Technology, latching alarm indicator, dual silence functions, end-of-life signal, tamper-resistant locking pin
- Certifications: UL Listed to UL 2034 Standard, complies with NFPA 720
This BRK CO5120BN hardwired carbon monoxide alarm provides reliable electrochemical sensor detection with 9V battery backup for continuous protection during power outages. With 85dB alert and interconnectable capability for up to 18 devices, it ensures comprehensive safety for residential and institutional applications.
New Condition
- Products in new condition are unused and in their original state.
- Backed by our 24-month warranty, ensuring reliability and peace of mind.
Reconditioned Condition
- Products in reconditioned condition are previously owned but have been professionally tested and inspected to ensure full functionality.
- May include minor repairs, such as replacing damaged screws, but are not fully refurbished.
- Covered by our 12-month warranty, guaranteeing performance.
Free Shipping on Orders Over $250
Enjoy free standard shipping on all orders over $250!
- Applies to the contiguous United States
- Excludes Alaska, Hawaii, U.S. territories, and oversized items
- No promo code needed—free shipping is automatically applied at checkout when your order total is $250 or more.
For full details, please refer to our Shipping Policy.
30-Day Hassle-Free Returns
Your satisfaction is our priority!
- Free returns within 30 days of purchase
- If you're not completely satisfied, we've got you covered!
For complete terms, please refer to our Return Policy.
