Model # 21010408-N

Internet #205465967

Kidde Worry Free Hardwired Combination Smoke and CO Alarm with Voice and Lithium 10-Year Battery Back Up (3-Pack)
0047871259823

Kidde

Worry Free Hardwired Combination Smoke and CO Alarm with Voice and Lithium 10-Year Battery Back Up (3-Pack)

$162.55 /package

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Kidde Hardwired-Interconnected 10 Year Combination Smoke and Carbon Monoxide Alarm feature 2 sensors in 1 unit. The alarm is suitable as a single station and/or multiple station (24 devices) alarm. This alarm contains a 10-year lithium battery backup, removing the need to replace batteries in a hardwired unit and carries a limited 10 year warranty.

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Worry Free Hardwired Combination Smoke and CO Alarm with Voice and Lithium 10-Year Battery Back Up (3-Pack)
Worry Free Hardwired Combination Smoke and CO Alarm with Voice and Lithium 10-Year Battery Back Up (3-Pack)

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2 answers

Use in an attached garage?

This question is from Worry Free Hardwired Combination Smoke and CO Alarm with Voice and Lithium 10-Year Battery Back Up (3-Pack)
Asked by
Oak Ridge, TN
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September 26, 2016
Is this unit suitable for use in an attached garage? The temperature range of the garage (unheated) exceeds the range in the product specification. The previous owner disabled the alarm--it was a Kiddie 1276. Since the detector was hard-wired, I assume it was correctly placed, per the fire code.
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Answers (2)

September 26, 2016
Answer: 
Hello JMH. Per NFPA 72, smoke alarms can not go in garages. Smoke detectors will tend to have nuisance alarms and other issues due to the heat, cold, insects, dust, and exhaust from the car, as it sounds like the previous owner found out. The only thing we have for a garage is a heat detector, Model # HD135F, Internet #100594387, Store SKU #146421. We are Kidde Product Support at 1-800-880-6788.
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September 26, 2016
Answer: 
Yes, you can use this in an attached garage.
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1 answer

CA approved? Compatible with Kidde 1276 wiring harness & mounting bracket?

This question is from Worry Free Hardwired 120-Volt Interconnected Combination Smoke and Carbon Monoxide Alarm with 10-Year Battery Backup
Asked by
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September 6, 2016
Two questions:
1. Is this combo smoke + CO alarm on the current "List of California State Fire Marshal Approved Carbon Monoxide Alarms and Detectors and Smoke Alarms"? I couldn't find it on the list, but I'm not sure I have the current list.
2. I would like to replace all of my old Kidde 1276 interconnected smoke detectors. Are the wiring harnesses the same? Are the mounting brackets the same?

I recently replaced on of my 1276 smoke detectors with a combo KN-COSM-IBA unit and it was completely compatible (interconnected, same wiring harness, same mounting bracket). But, it's not on the CA list because it has AA battery backup.

Thanks.
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Answer (1)

September 7, 2016
Answer: 
Hello Roonie. Yes. This is listed with the Office of the State Fire http://osfmtraining.fire.ca.gov/BMLListingSearchPage/DisplayPDF.aspx?ListingID=3490ba9c-86b9-401a-99ce-da4cbcfb453a&number=7256-1610-0145&program=BML . Office of the State Fire Marshal listing 7256-1610:0145 Company: KIDDE SAFETY. Address: 4820 Centennial Blvd, Suite 145, Colorado Springs, CO 80919. Contact: Larry Ratzlaff. Date Read More
Hello Roonie. Yes. This is listed with the Office of the State Fire http://osfmtraining.fire.ca.gov/BMLListingSearchPage/DisplayPDF.aspx?ListingID=3490ba9c-86b9-401a-99ce-da4cbcfb453a&number=7256-1610-0145&program=BML . Office of the State Fire Marshal listing 7256-1610:0145 Company: KIDDE SAFETY. Address: 4820 Centennial Blvd, Suite 145, Colorado Springs, CO 80919. Contact: Larry Ratzlaff. Date Issued: 07/01/2016 Listing Expires: 06/30/2017. Description: Model *i12010S is an ionization type smoke alarm. The alarm is 120 VAC powered with a (3 volt lithium) sealed in 10 year backup battery. This model is equipped with alarm silence feature to deal with nuisance alarms, and has a 10 year end of life timer.. Category: SMOKE ALARM-IONIZATION TYPE (SINGLE/MULTIPLE). We are Kidde Product Support at 1-800-880-6788. Thank you for your interest. Read Less
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currently have lifesaver 1235... hardwire only. Does this one have the same 3 prong connection in the back or do I have to rewire.

This question is from Worry Free Hardwired Combination Smoke and CO Alarm with Voice and Lithium 10-Year Battery Back Up (3-Pack)
Asked by
Maine
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July 3, 2016
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Answer (1)

July 6, 2016
Answer: 
Hello Evans. Yes. And no. There is a plastic plate or surface on the back of our wiring harness that say "Warning, AC Power Present". On the old wiring harnesses from 2004 and before, the plate on the wiring harness is round and goes all the way around the plug. On the new wiring harnesses, the plate goes only behind the plug and is fan or mushroom shaped. This model of new hardwired worry free Read More
Hello Evans. Yes. And no. There is a plastic plate or surface on the back of our wiring harness that say "Warning, AC Power Present". On the old wiring harnesses from 2004 and before, the plate on the wiring harness is round and goes all the way around the plug. On the new wiring harnesses, the plate goes only behind the plug and is fan or mushroom shaped. This model of new hardwired worry free combination smoke and co alarm with 10 year battery will not work with the old plug. If you have the old plug, you will need to change out the plug. This involves undoing the wire caps and using the exact same wires in the exact same place on the new wiring harness. If you are not sure of what you are doing, the safest way to replace the plug is always to get a licensed electrician. If you have the newer plug already, it should not be an issue and your current plug then would work with this alarm. Either way, you will have to change out the bracket, but that just takes a screwdriver to change out. We are Kidde Product Support at 1-800-880-6788. Thank you for your interest. Read Less
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Hello I have this 3 pack instalked last November..I see that one on the first floor doesn't hhave the green light lit

This question is from Worry Free Hardwired Combination Smoke and CO Alarm with Voice and Lithium 10-Year Battery Back Up (3-Pack)
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June 30, 2016
And it blinks every so often it us hardwired too....Please advise thanks!!
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Answer (1)

July 6, 2016
Answer: 
Hello Luckie1111. This could be an indication that the alarm is in alarm memory mode. This means at some point in the past the alarm went off and set off all of the others. Try pressing the test button. This could also be an indication that the alarm is just running on battery alone and that a wire may have come out of the wiring caps in the ceiling. If pressing the test button does not result in a Read More
Hello Luckie1111. This could be an indication that the alarm is in alarm memory mode. This means at some point in the past the alarm went off and set off all of the others. Try pressing the test button. This could also be an indication that the alarm is just running on battery alone and that a wire may have come out of the wiring caps in the ceiling. If pressing the test button does not result in a solid green light, try having this alarm trade places with one of the others. If every alarm has a problem in this location, you will need to get an electrician in. If it is just that this alarm has a problem in every location in the house, call us at Kidde Product Support at 1-800-880-6788 with the alarm in hand. Read Less
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Customer Reviews

Worry Free Hardwired Combination Smoke and CO Alarm with Voice and Lithium 10-Year Battery Back Up (3-Pack) is rated 4.2 out of 5 by 71.
Rated 5 out of 5 by from Great product The item may be a bit pricey, but as far as I'm concerned, this should be the only kind of smoke detector in existence. Considering how many homes that have the type of alarms that need to change batteries every six months, the millions of batteries that then get thrown away every six months, is just ridiculous. If you already have hard wired smoke detectors, just replace them with these (but make sure you get these that are also hard wired adaptable). Then just leave them alone until it's time to replace the whole unit in ten years!
Date published: 2016-07-26
Rated 1 out of 5 by from 66% failure rate? I bought 9 of these to replace all of the existing Firex smoke detectors in my house. They were 15 years old, and way past their design life. I chose these for 3 reasons: 1) They were hardwired, which I prefer for long lasting detectors, 2) They have 10 year sealed lithium batteries that never need replacement (I despise 2am battery beeps) 3) They said they were dual sensor and included a CO detector. They get a 1-star rating for a few reasons: 1) The first I installed gave me a low battery warning 1 minute after the first test. I reset the alarm, and it did it again. I checked the codes in the manual, and this indicated a faulty detector, and said I should call Kidde to get a replacement. I wasn't going to do that on a brand new purchase. 2) I replaced the first installed unit with one of the 8 remaining I had. It worked fine, so I packaged up the faulty unit with the mounting disc and wiring harness from the first. 3) I installed 2 more. Both gave the low battery alarm. Multiple resets got one of them working... for now. I used another spare to swap out the 2nd faulty unit. At this point, I had 3 working and 2 faulty units. 4) I installed the next two units. Both faulty, despite repeated resets. Ditto with the 2 I tried to swap in. Ditto with the next two, despite repeated resets and tests. 5) More research let me see that despite the Home Depot comment that they are "Dual-Sensor", that referred to "smoke and CO", not "photoelectric and ionization". That's my bad... I should have figured that out. So, the real reason for the rating is the 66% failure rate. 6 out of 9 were bad. I searched for a better option at the local Home Depot and found none. At this cost per unit, I expected better. I ordered 3 Nest 2.0 hardwired detectors online, and will try those. They are much more expensive, but they do photoelectric, ionization and CO, and despite needing battery replacements, they will tell you before 2am, and you can hush them with your phone if needed. I really wanted to like these Kidde detectors, but there is a serious QA problem.
Date published: 2016-02-07
Rated 1 out of 5 by from Failures Installed five of these. Two kept beeping no matter what we did (returned them). 1 went off for no reason, a day after installation (12 feet up in the middle of the night). Two seem to be working, but for all we know they'll go off at some random time like the first one. Other reviewers had similar troubles, but we took a chance on these because this model seems to be the only one that combines 10-year, smoke and carbon monoxide, plus hard-wired. Home Depot needs to find another brand or pressue Kidde to improve this dud.
Date published: 2015-08-11
Rated 1 out of 5 by from Battery DOA Purchased 2 of these unit, one of the packages was beeping non-stop (still in packaging). Once I installed it, which a bit of a trail because of where the old alarm was, the unit said battery something or other. According to the packaging this battery should have a 10 year life, will it didn't even have a few minutes. The other unit so far so good but I'm wary of the unit, again too much of a pain to remove if not absolutely necessary. Notice other feedback says units batteries are also DOA. This one of the most expensive units available at HD. Battery should be protected until actually installed then activated, pull-tab or something like that.
Date published: 2015-01-22
Rated 5 out of 5 by from I replaced an existing Kidde hard wired smoke only alarm with the combination unit. The replaceme... I replaced an existing Kidde hard wired smoke only alarm with the combination unit. The replacement was an exact plug & play fit for the existing smoke only unit . Both Smoke and Carbon Monoxide alarms tested fine and there were no negative effects to the other smoke only units located in other areas of the house. This was an easy upgrade and I will start replacing the other smoke only alarms were needed.
Date published: 2016-12-06
Rated 5 out of 5 by from This product is a good value in that you get two alarms in one. Easy to install and I like the i... This product is a good value in that you get two alarms in one. Easy to install and I like the idea of not having the annoying chirping noise every few years due to spent batteries. I installed two alarms in my condo and within ten minutes one alarm starting giving a low battery indication. I exchanged this item to Home Depot and the replacement alarm works just fine.
Date published: 2016-12-06
Rated 1 out of 5 by from Already have returned 7 with low battery I was replacing all 3 of my smoke detectors. As soon as I installed them I got the low battery warning. So got 3 more and all of them were low battery. So I figured it was a bad batch and went to another home depot 2 hours away where I was visiting friends. 2 of those worked. Went yo install 3rd one and got low battery. Now I will have to go back again ugh. I don't want to have to rewire for a different brand but now I wish I did.
Date published: 2015-07-31
Rated 5 out of 5 by from I would guess that most people only review this smoke alarm if they have issues so after a month ... I would guess that most people only review this smoke alarm if they have issues so after a month of having three installed I am happy to say that these are great. No false alarms. Easy to wire in myself. Trusted company. 5/5 would recommend.
Date published: 2016-11-08
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