Search  for anything...

Kidde Battery Powered KN-COSM-IBA Smoke and Carbon Monoxide Alarm

  • Based on 857 reviews
Condition: New
Checking for product changes

Buy Now, Pay Later


As low as $12.50 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 2 left in stock, order soon!
Fulfilled by OLR electriCID

Arrives Thursday, May 30
Order within 18 hours and 38 minutes
Available payment plans shown during checkout

Size: 1 pack


Style: Detector


Features

  • Smart Interconnect-Interconnects up to 24 Kidde devices (of which 18 can be initiating), Battery Backup (2-AA batteries included)-Provides protection during power outages.Front Loading Battery Door-Replace the backup batteries without disconnecting from mounting bracket
  • Humidity range:10%-95% relative humidity, non-condensing.Battery Lockout System-The battery door will not close unless the batteries are properly installed, Alarm Tamper Resist-Helps deter from tampering and theft, Adjustable Mounting Bracket-Makes installation fast and easy. Works with existing smoke and combination smoke and CO mounting brackets.
  • Peak Level Memory-Announces CARBON MONOXIDE PREVIOUSLY DETECTED if alarm has detected a CO level of 100ppm or higher since it was last reset, HushTM Feature-Silences nuisance alarms for approximately 9 minutes. (Smoke must be present before HushTM is activated)
  • Ionization Sensor Technology-Ideal for detecting fast flaming and other types of fires, est Button Functions: Tests the unit for proper operation - Peak Level memory - Resets the Carbon Monoxide alarm
  • Green LED-Illuminates to indicate the unit is receiving AC power. Flashes once every 60 seconds to indicate battery only mode. Flashes once per second during alarm to indicate initiating alarm. Flashes once every 16 seconds to indicate smoke or CO previously detected. Flashes every 2 seconds while the alarm is in HUSHTM mode
  • Voice Alert
  • Intelligent sensor technology
  • Front load battery door
  • Alarm tamper resist
  • Peak level memory

Description

120AC Direct Wire Carbon Monoxide and Smoke Alarm w Battery Back up Voice alert Intelligent Sensor Technology Front Loading battery door Peak level memory. From the Manufacturer 120AC Direct Wire Carbon Monoxide and Smoke Alarm w Battery Back up Voice alert Intelligent Sensor Technology Front Loading battery door Peak level memory

Brand: Kidde


Style: Detector


Power Source: Battery Powered


Color: white


Item Dimensions LxWxH: 5.6 x 1.8 x 5.6 inches


Item Weight: 0.75 Pounds


Alarm: Audible


Compatible Devices: Up to 24 Kidde devices (of which 18 can be initiating)


Upper Temperature Rating: 100 Degrees Fahrenheit


Sensor Type: Electrochemical


Brand: ‎Kidde


Style: ‎Detector


Power Source: ‎Battery Powered


Color: ‎white


Item Dimensions LxWxH: ‎5.6 x 1.8 x 5.6 inches


Item Weight: ‎0.75 Pounds


Alarm: ‎Audible


Compatible Devices: ‎Up to 24 Kidde devices (of which 18 can be initiating)


Upper Temperature Rating: ‎100 Degrees Fahrenheit


Sensor Type: ‎Electrochemical


Manufacturer: ‎Kidde Safety


Part Number: ‎OMER-OPN-872317


Item Weight: ‎12 ounces


Product Dimensions: ‎5.6 x 1.8 x 5.6 inches


Item model number: ‎KN-COSM-IBA


Batteries: ‎2 AA batteries required. (included)


Size: ‎1 pack


Voltage: ‎120 Volts (AC)


Item Package Quantity: ‎1


Included Components: ‎9V battery, User manual


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Average Battery Life: ‎4380 Hours


Warranty Description: ‎10 year


Date First Available: July 18, 2014


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Straight forward and easy to install
The installation of this CO2/smoke detector was a breeze. Clear instructions and a simple setup made it hassle-free. Highly recommended for an easy and quick installation.
Reviewed in the United States on November 3, 2023 by Amazon Customer

  • good product
Size: 1 pack Style: Detector
exactly what I needed
Reviewed in the United States on October 18, 2023 by Jacqueline Lubniewski

  • Just what I needed
Size: 6 packs Style: Detector
Bought a 6-pack of KN-COSM-IBA to replace mine after one shot craps and wouldn't shut up about it. It's only been 7 years and I think they say 10 - shocker! Arrived ahead of expected delivery date (in 4 days). Came in the manufacturer box only but no real damage to the exterior packing and individual boxes were fine. Everything included - exactly what I could have gotten at a big box store but $4-5 cheaper per unit. Still expensive but whatever. It was easier to just replace mine with the same old model and not have to redo the wiring. So far so good.....day 1 ... show more
Reviewed in the United States on July 19, 2023 by Amazon Customer

  • Worked with my current system
I bought these cause I had kiddie alarms that got too old and I was hoping they’d plug in to my current system without needing to do any wiring. Luckily they did. They came with backup batteries which is nice except the battery was dead I had to replace them immediately after installing the alarms. For the price of these alarms they should come with working batteries…. ... show more
Reviewed in the United States on April 15, 2023 by N. T.

  • Good replacement for old Kidd smoke detectors
Size: 1 pack Style: Detector
I bought 5 of these to replace 10 yr old Kidd smoke detectors. These are compatible and easy to install. We shall see how long these last. Only complaint is that these detectors came in a beat up boxes, I am not sure if they are really new or used.
Reviewed in the United States on March 26, 2023 by John L.

  • This Chick hates my cooking....
Great units easy to install, a little more sensitive than the last ones I had. They go off every time I use my oven! They do not respond to "Shut up you judgy nag!!" you actually have to push the button to hush it. Overall a good unit.
Reviewed in the United States on March 29, 2023 by Gindyman

  • Work well, good value
Size: 6 packs Style: Detector
I purchased these as a replacement for 6 of my 7 hardwired smoke detectors after the old ones malfunctioned. They were easy to install and have proven effective. The one closest to the kitchen accidentally triggers way more often than the previous ones, which never went off because of drips in the oven, but that's a good problem to have. The voice is loud, clear, and all the alarms consistently go off on every floor of the house when one is triggered. They give me great peace of mind. ... show more
Reviewed in the United States on March 25, 2023 by Rebecca Anderson Rebecca Anderson

  • Difficult to rate future performance.
Hopefully will last a long time.
Reviewed in the United States on April 8, 2023 by Vada Thomas

Can't find a product?

Find it on Amazon first, then paste the link below.