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    Kidde Battery Operated Combination Smoke and Carbon Monoxide Alarm with Voice Alert
    Set your store for local inventory & pick up options.
    • Description
      KN COSM BA
      Store SKU:

      Combination alarms offer protection from two deadly threats in one unit. This model offer an exclusive voice warning system that eliminates confusion and clearly warns you and your family of a fire or carbon monoxide danger. Voice responds: Fire when smoke is detected, and Warning Carbon monoxide when CO is present. Operated by 3 AA batteries (included) and carries a 5-year limited warranty.

      • Voice alarm - announces the threat type detected thereby helping to speed up the correct reaction to the danger detected
      • Combined carbon monoxide and smoke alarm - a single unit can be installed where previously, two were needed and reduces installation time and helps to keep home decor attractive
      • Test/reset button - tests alarm circuitry and triggers the voice announcement
      • Battery safeguard - ensures the unit cannot be accidentally mounted without batteries installed
      • Contains a hush feature to temporarily silence false alarms
      • Product not available for sale in the state of California.
      • Note: product may vary by store
    • Specifications
      Alarm Sensor Type :
      Alarm Type :
      Carbon Monoxide,Smoke
      Alarm/Detector Features :
      Hush Feature,Voice Alert
      Commercial / Residential :
      Commercial / Residential
      Connector/Contact Type :
      Included :
      Power Source :
      Product Depth (in.) :
      Product Height (in.) :
      Product Width (in.) :
      Returnable :
      Voltage (volts) :
    • Reviews
      • Saved My Life and Property!
      • September 24, 2013
      • Verified Purchase & Recommended Product

      I was just buying a few more detectors for our NEW home, after a serious fire in 2010 badly damaged our little cabin. A combination of the breaking glass and the smoke detector woke me up at 12:30 a.m. to find our home ablaze from a broken porch light (my review of THAT product is very poor!). Thank God it woke me up and it also scared all of our pets safely out the doggie door, too. I was able to turn on a nearby water hose and battle the fire until help arrived. It wasn't a total loss, thanks to these wonderful detectors, that also detect CO2, as well.

      Pros: Easy to Use, Loud, Great Sound Quality, Compact, Stylish, Easy Replacement, Battery Length, Lots of Features, Clear Instructions, Nice Design, Easy Installation
      • DIY


      Trinity, TX 75862, USA
      45 to 54,Female
      25 out of 25 people found this helpful
      more details...
      By: KatG
    Special Buy 

    We’ve priced this item below the manufacturer’s suggested retail price, so you’ll have to add it to your cart to view this very low price . If you don’t want to purchase the item, you can remove it from your cart.

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    • Shipping & Delivery Options

      Most orders process within 1 business days

      Cost Saver Shipping includes initial transportation by small parcel service, with final delivery made by U.S. Postal Service. Tracking information may be limited.

      Other Delivery Options:

      Standard Shipping includes delivery by small parcel service. Processing time varies by product.

      If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.

      This item is also available for pick up in your local store (FREE) within 4-7 business days, plus order processing time.


      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):CA,GU,VI