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    First Alert   Battery Operated Carbon Monoxide Alarm with Battery Backup

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    • Description
      • Quick plug-in power connector
      • Superior carbon monoxide sensor with battery backup
      • Hardwired with battery backup
      Model
      CO5120BN
      Internet/Catalog:
      204357249

      The BRK hardwire carbon monoxide alarm detects dangerous CO gas and allows you peace of mind with its battery backup. This alarm features a controlled microprocessor for few were nuisance alarms and quick plug-in power connector for easy installation. This BRK electronics carbon monoxide alarm is listed to UL safety standards.

      • Superior carbon monoxide
      • Simple to use silence/test button
      • 9-Volt battery included
      • 7-year limited warranty
      Info & Guides
    • Specifications
      Alarm Type :
      Carbon Monoxide
      Alarm/Detector Features :
      Battery Back-Up
      Battery Back-Up :
      Yes
      Commercial / Residential :
      Commercial / Residential
      Connector/Contact Type :
      None
      Included :
      Batteries
      Power Source :
      Battery
      Product Depth (in.) :
      5.6
      Product Height (in.) :
      5.6
      Product Width (in.) :
      1.9
      Returnable :
      90-Day
      Voltage (volts) :
      120
    • Reviews
      (7)

      Ratings & Reviews

      86% of customers recommend this product
      4.4
      Out of 5:
      5
      [4]
      4
      [2]
      3
      [1]
      2
      1
      QUALITY:
      VALUE:
      4.3
      4.0
      • CO Monitor
      • October 22, 2014
      • Verified Purchase & Recommended Product

      This is a replacement unit for one that finally bit the dust. I've got several in my home, and only one failed, after over 10 years. Since they still make the same model, all I had to do it plug it in to the existing frame and wiring. One note: the unit is AC operated (not battery) with battery backup.

      Pros Easy Replacement, Easy Installation
      • DIY

      Customer

      Nashua, NH
      65 or over, Female
      2 out of 2 people found this helpful
      more details...
      By: Customer
    • Shipping & Delivery Options

      Shipping options for [zipcode] (change)

      Arrival dates and shipping costs shown above are estimates.See exact dates and costs and select your preferred shipping option during checkout.


      EXPRESS DELIVERY FROM STORE:

      Express Delivery from Store is available for items currently in stock at a The Home Depot store within a delivery ZIP code. A driver from a local store will deliver the item(s).


      Outside Delivery:  Service includes delivery to area outside the house which is accessible by delivery equipment.


      Threshold Delivery: Service includes delivery across your first doorway or threshold (ie. garage, backyard, deck, first room of the home).


    This item cannot be shipped to the following state(s): AK,GU,HI,PR,VI

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