Model # KN-COSM-XTR-BA

Internet #202026789

Store SKU #622269

Store SO SKU #198092

Kidde Intelligent Battery Operated Combination Smoke and Carbon Monoxide Alarm with Voice Alert
0047871074501

Kidde

Intelligent Battery Operated Combination Smoke and Carbon Monoxide Alarm with Voice Alert

  • Combo Smoke and CO detector
  • Easy to install / setup
  • Alarm has two methods of warning for danger
$38.97 /each

Frequently Bought Together

Product Overview

Intelligent combination alarm offers you and your family protection from fire and carbon monoxide. The intelligent combination alarm uses breakthrough technology to offer a fast response to real fires, including smoldering and fast-flaming, as well as protect you and your family from carbon monoxide. Voice warning alerts you to the type of danger present. The Intelligent Alarm combines the detection capabilities of an ionization smoke sensor - which is more likely to detect smaller, less visible fire particles, like those produced by flaming fires - with that of an electro-chemical sensor, which is used to detect CO. 10 Year Warranty.

  • Provides protection from smoke and carbon monoxide in one device
  • Voice alarm announces the hazard "Warning, carbon monoxide" or fire, fire, fire
  • Test/reset button checks the unit's functionality and hush false alarms
  • Hush mode activated and hush mode cancelled voice announcement
  • Battery safe guard, unit cannot be mounted without batteries installed
  • Low-battery warning alerts you when the battery needs replacing
  • Combination Smoke and Carbon Monoxide Alarm
  • Available in a 2 pack THD online 204830114
  • Replace with Kidde AA battery model# 21025831
  • Ionization Smoke Sensor
  • Product not available for sale in the state of California





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Customer Questions & Answers

23 Questions36 Answers

Customer Questions & Answers

Intelligent Battery Operated Combination Smoke and Carbon Monoxide Alarm with Voice Alert
Intelligent Battery Operated Combination Smoke and Carbon Monoxide Alarm with Voice Alert

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1 answer

does it give a loud beep signal or just voice

This question is from Intelligent Battery Operated Combination Smoke and Carbon Monoxide Alarm with Voice Alert
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October 6, 2016
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October 7, 2016
Answer: 
Hello james. This alarm gives a voice AND beeps both for the alert for smoke, the alert for carbon monoxide, and the alert for low battery. We are Kidde Product Support at 1-800-880-6788. Thank you for your interest.
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1 answer

Will this fit the older model bracket I have which is the Kidde Nighthawk Model # KN-COSM-B

This question is from Intelligent Battery Operated Combination Smoke and Carbon Monoxide Alarm (2-Pack)
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October 26, 2016
Will this fit the older model bracket I have which is the Kidde Nighthawk Model # KN-COSM-B
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October 26, 2016
Answer: 
Hello Heavenlyms. Yes, this alarm will fit your old bracket. We are Kidde Product Support at 1-800-880-6788. Thank you for your interest.
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1 answer

Will this thing start boarding off if I smoke a cigarette

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September 2, 2016
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September 6, 2016
Answer: 
Hello Kae. The extinguisher is not designed specifically for cigarette smoke and is made to avoid going off for a small amount of smoke, say, if the toast burns in the toaster. However, if there is enough thick smoke on the ceiling that the smoke flows into the back side edges of the alarm, the alarm will go off. We are Kidde Product Support at 1-800-880-6788. Thank you for your interest.
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3 answers

Are these white or off white?

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September 26, 2016
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October 26, 2016
Answer: 
They are white, but matte and blend in with my beige walls quite well.
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September 27, 2016
Answer: 
Hello Katie. This alarm is an off-white white, a very very pale shade of beige. We are Kidde Product Support at 1-800-880-6788. Thank you for your interest.
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September 26, 2016
Answer: 
Yes, the smoke alarms are true white.
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Customer Reviews

Intelligent Battery Operated Combination Smoke and Carbon Monoxide Alarm with Voice Alert is rated 4.5 out of 5 by 162.
Rated 5 out of 5 by from Excellent product My last one lasted as long as it should have, something like 8 or 10 years. And then started chirping. Very pleased with the new alarm. Tested it and it worked fine. The best part is, I was able to pop off the old Kidde alarm and pop on the new one without having to install the base, saving me some difficulty.
Date published: 2016-03-22
Rated 5 out of 5 by from 7 yr lifespan, worth price mine just went out last week, after 7 years of faithful service, with no malfunctions along the way. Kiddie makes a great detector, and they have never let me down. This is a great buy, but they do have an even better model out now. This time around, I will be upgrading to the li-ion battery version with a 10 year lifespan ... that's three extra years of expected life, and no batteries to change, plus you get to keep all the same features. And at about $10-$15 more than the standard AAA version, the "higher" price really just buys all those AAA's that you won't need to install... saving you time, and putting less batteries in a landfill!!
Date published: 2013-02-04
Rated 4 out of 5 by from One out of two ain't bad No problem with the product. However, I had ordered two of them online, only to find that one was defective (broken battery contact). This necessitated my having to go to the store for an exchange, which is exactly what I was hoping to avoid by ordering online!
Date published: 2016-06-21
Rated 5 out of 5 by from Love the voice alarm which distinguishes between a fire/smoke alert and a carbon dioxide alert! V... Love the voice alarm which distinguishes between a fire/smoke alert and a carbon dioxide alert! Very easy to install and to change the batteries. Test/silence button works well. Also, they arrived very quickly.
Date published: 2016-10-26
Rated 5 out of 5 by from Combination Smoke and Carbon Monoxide Alarms needed for Certificate of Occupancy Had to add carbon monoxide capability to the old units installed. Easy installation. Was actually able to use the screw locations from the old smoke detectors being replaced. Made it a very quick and easy job.
Date published: 2016-09-13
Rated 3 out of 5 by from Easy to install and test, only problem was that I should have checked box before I left store as ... Easy to install and test, only problem was that I should have checked box before I left store as the batteries had been removed!!!!
Date published: 2016-11-01
Rated 5 out of 5 by from Combination Smoke and Carbon Monoxide Alarm with Voice First Installed this Kiddie M/N# KN-COSM-B combo smoke/CO alarm in October of 2004. It worked fine the entire time it was installed. it uses (3) AA batteries not the typical 9V. The voice prompts (when testing and low battery) are clear and loud enough to hear easily. On the negative side, It hit it's built in expiration date the night before last at 3AM. (7 years and 1 month after the initial installation) Would be nice if they could build it to last 10 years - but then i guess they'd sell less of them because I plan to buy another.. Excerpt from the owners manual about built-in end-of-life countdown timer included below... (from page 5) • After seven (7) years of cumulative power up, this unit will “chirp” every 30 seconds. This is an "operational end of life" feature which will indicate that it is time to replace the alarm.
Date published: 2011-11-23
Rated 5 out of 5 by from great product Put one of these units in 5 years ago. Last month the carbon monoxide alarm went off. Called the gas company they came and couldn't find a problem, suggested the alarm was bad. So I bought a new one. That one went off too and after they returned again they found the the heat exchanger on my furnace was cracked and putting co2 into the house. So the sensor saved my family. If you don't have one in your house, get one.
Date published: 2014-01-14
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