0047871099702

Kidde

Model # 21006373

Internet # 100179554

Hardwire 120-Volt Inter Connectable Smoke Alarm with Battery Backup (6-Pack)

$54.97 /each
  • Direct wire
  • Hush button
  • Ionization sensor

Frequently Bought Together

Product Overview

The Kidde i12040 contractor 6 pack is sold as one master pack that contains 6 individual units. These alarms are 120-Volt hardwired ionization smoke alarm with 9-Volt battery backup and Hush feature. Smoke alarms have the ability to function as single units or in an interconnected system.

  • Test button, tests unit's electronic circuitry, horn, and battery function
  • Hush feature - temporarily silences nuisance alarms
  • Quick connector - makes installation fast and easy
  • Tamper resist locking pin - helps deter alarm tampering and theft
  • 9-Volt battery back up (21025830)


Info & Guides

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Specifications

Dimensions

Product Depth (in.) 
10.7 
Product Height (in.) 
6.5 
Product Width (in.) 
6.6 

Details

Alarm Sensor Type 
Ionization 
Alarm Type 
Smoke 
Alarm/Detector Features 
Battery Back-Up,Hush Feature,Interconnected,Value Pack 
Commercial / Residential 
Commercial / Residential 
Connector/Contact Type 
3-Wire 
Included 
Batteries 
Power Source 
Hardwired 
Returnable 
90-Day 
Voltage (volts) 
120 

Warranty / Certifications

Certifications and Listings 
1-UL Listed 

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Customer Questions & Answers

46 Questions85 Answers

Customer Questions & Answers

Hardwire 120-Volt Inter Connectable Smoke Alarm with Battery Backup (6-Pack)
Hardwire 120-Volt Inter Connectable Smoke Alarm with Battery Backup (6-Pack)

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4 answers

Disconnect one alarm unit

This question is from Hardwire 120-Volt Inter Connectable Smoke Alarm with Battery Backup (6-Pack)
Asked by
Limerick, PA
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May 14, 2016
I currently have six interconnected smoke alarms installed. One of them repeatedly gives the low battery indication (chirping) even with new batteries. Can I remove or disconnect this one unit without compromising the performance of the other alarms?
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Answers (4)

May 20, 2016
Answer: 
Hello Luke. Yes, you can disconnect this one and the others will not be affected. Please call us at Kidde Product Support at 1-800-880-6788 with the alarm unplugged and in hand and with both the new and old battery in hand and we will see what we can do to help you with this alarm.
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Asked by
Alburtis, PA
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Home Improvement Profile: DIYer
May 20, 2016
Answer: 
You can just disconnect it if it is the last one from the power source. Just make sure you wire nut the wires as they will still be hot. If not, you may still disconnect it, but you must still continue the power and red link wires to the next smoke alarm, which would only entail wire-nutting the wires....white to white...black to black and red to red. And of course codes require the use of a blank plate Read More
You can just disconnect it if it is the last one from the power source. Just make sure you wire nut the wires as they will still be hot. If not, you may still disconnect it, but you must still continue the power and red link wires to the next smoke alarm, which would only entail wire-nutting the wires....white to white...black to black and red to red. And of course codes require the use of a blank plate over wire nutted wires. Read Less
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Asked by
Mooresville NC
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Home Improvement Profile: DIYer
May 16, 2016
Answer: 
i had the same issue and only replaced the broken one. However, a few months later, another one went bad. In the end, I bought the six pack and replaced all. With the $ savings on the six pack, I recommend replacing them all at the same time. These do "expire" with recommended replacement every 5 years. I question if 5 years is correct, but for the money, a very inexpensive way to protect your family in Read More
i had the same issue and only replaced the broken one. However, a few months later, another one went bad. In the end, I bought the six pack and replaced all. With the $ savings on the six pack, I recommend replacing them all at the same time. These do "expire" with recommended replacement every 5 years. I question if 5 years is correct, but for the money, a very inexpensive way to protect your family in the event of fire. Read Less
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Asked by
Great American Desert
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May 16, 2016
Answer: 
Yes, it's part of how to deal with the ultimate "long term" failure of single units. After numerous years, it is the radioactive *sensor* that goes bad and the one unit needs to be entirely replaced. The "low battery indicator" in such cases is only a "not willing to work any more" indicator. I've had to do the same "disconnect one alarm unit" and remove it until I got the replacement unit.
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3 answers

I have 3 kiddie hardware combination smoke/carbon detector I need 5 more just smoke det. will they talk to the combo?

This question is from Hardwire 120-Volt Inter Connectable Smoke Alarm with Battery Backup (6-Pack)
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June 5, 2016
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Asked by
Alburtis, PA
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Home Improvement Profile: DIYer
June 8, 2016
Answer: 
From what I have read they are compatible as long as they are the Kidde brand. I would double check with Kidde before purchasing just to be sure.
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June 7, 2016
Answer: 
Hello Scott. Yes, all Kidde hardwired interconnected alarms are compatible if wired together on the same 3 wire circuit. See our owner's manuals for wiring diagrams. If the combo units go off for smoke, all of the alarms will go off in the interconnected circuit. However, if the combo units go off for carbon monoxide, the smoke-only alarms are made to ignore the signal for carbon monoxide and will not Read More
Hello Scott. Yes, all Kidde hardwired interconnected alarms are compatible if wired together on the same 3 wire circuit. See our owner's manuals for wiring diagrams. If the combo units go off for smoke, all of the alarms will go off in the interconnected circuit. However, if the combo units go off for carbon monoxide, the smoke-only alarms are made to ignore the signal for carbon monoxide and will not go off. Only other hardwired combination units or hardwired carbon monoxide units will go off. For this reason, we would recommend at least one smoke/co alarm per floor. If we can help you further on this, we are Kidde Product Support at 1-800-880-6788. Thank you for your interest. Read Less
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Asked by
Great American Desert
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June 6, 2016
Answer: 
Kidde Customer Service is available at 1-800-880-6788, Hours are from 8:00 a.m. - 5:00 p.m. EST Monday through Friday, Except Holidays. They're the totally knowledgeable source to answer that question.
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3 answers

Hi.I need to replace 6smoke alarms model #1276. What is compatible with this number?

This question is from Hardwire 120-Volt Inter Connectable Smoke Alarm with Battery Backup (6-Pack)
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February 5, 2016
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Asked by
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February 18, 2016
Answer: 
Thank you both for the answers
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Asked by
Las Vegas, NV
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Home Improvement Profile: Professional
February 16, 2016
Answer: 
Not sure what detector is model# 1276, but if you're utilizing hard-wired smoke detectors (as opposed to a battery only powered smoke detector), these will do the trick. If your residence is wired for interconnected smoke detectors just make sure to hook up the red wire also. If your residence is not so wired, just leave the little "cap" on the red wire and hook up the black and white wires as Read More
Not sure what detector is model# 1276, but if you're utilizing hard-wired smoke detectors (as opposed to a battery only powered smoke detector), these will do the trick. If your residence is wired for interconnected smoke detectors just make sure to hook up the red wire also. If your residence is not so wired, just leave the little "cap" on the red wire and hook up the black and white wires as instructed.
As always when working with electricity, make sure to turn the power off at the breaker panel first.
When using these smoke detectors be aware that the keyholes (screw holes) in the mounting plate are not pre-punched out. When you punch them out be sure to place them on a solid surface with an opening under the keyhole. This will support the base and prevent it from cracking should you hit the keyhole wrong. The top of your ladder works well by placing the keyhole over one of the tool holes in the top of the ladder. There are 3 sets of keyholes, depending on the spacing between the mounding screws in your ceiling box. If you punch out the wrong set, just re-punch out the right set.
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February 8, 2016
Answer: 
Hello WD. The alarm that replaces the 1276 is the i12060A. However, all Kidde hardwired alarms are compatible with all other Kidde hardwired alarms, and all Kidde hardwired alarms use the same wiring harness. If you used an alarm of a different model, the only thing you would have to change is the plastic mounting bracket. The I12060A has the same mounting bracket as the 1276. The new alarms do come with Read More
Hello WD. The alarm that replaces the 1276 is the i12060A. However, all Kidde hardwired alarms are compatible with all other Kidde hardwired alarms, and all Kidde hardwired alarms use the same wiring harness. If you used an alarm of a different model, the only thing you would have to change is the plastic mounting bracket. The I12060A has the same mounting bracket as the 1276. The new alarms do come with a wiring harness that is slightly different than the wiring harness of the much older models from the 90's and is made to be easier to take out of the back of the alarms, but the old wiring harnesses will work with the new alarms. The wiring harnesses can get brittle as they age and the plastic or the wires can break. Best practice is to change out the wiring harnesses every 10 years to avoid that from happening. We are Kidde Product Support at 1-800-880-6788. Thank you for your interest. Read Less
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3 answers

What does inter connectable mean?

This question is from Hardwire 120-Volt Inter Connectable Smoke Alarm with Battery Backup (6-Pack)
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October 20, 2015
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Asked by
Alburtis, PA
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March 6, 2016
Answer: 
It means there is a third wire that runs between the units. That way when one goes off , any other one connected to it by the third wire will go off also. Just buy what they call 3-wire and you will have 3 wires plus a ground. That will give you a hot wire, a neutral wire, and a third wire to go from one unit to the next, plus of course you have the ground wire which does not connect to the smoke alarm Read More
It means there is a third wire that runs between the units. That way when one goes off , any other one connected to it by the third wire will go off also. Just buy what they call 3-wire and you will have 3 wires plus a ground. That will give you a hot wire, a neutral wire, and a third wire to go from one unit to the next, plus of course you have the ground wire which does not connect to the smoke alarm and sometimes is not needed. Also note that the 3-wire is only needed after the first smoke alarm. Going to the first smoke alarm you only need the standard house wire which is two wires plus a ground. Read Less
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Asked by
on the lam
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October 28, 2015
Answer: 
Interconnected means ,When one smoke detector senses smoke it sends a signal (via hard wiring with a cable ) to the other smoke detectors it is connected to making all the smoke detectors connected together sound the alarm. So no matter where you are you will hear the alarm.
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October 21, 2015
Answer: 
Hello Chuck. Interconnected means that if one alarm goes off, it sets off all of the other alarms on the circuit. This unit is a hardwired alarm. For the alarms to be interconnected, the alarms have to be wired up on a 3 wire 120 volt circuit with 1 HOT wire, usually black, 1 NEUTRAL wire, usually white, and one INTERCONNECT wire, usually red and has no power on it and just jumps from alarm to alarm. A Read More
Hello Chuck. Interconnected means that if one alarm goes off, it sets off all of the other alarms on the circuit. This unit is a hardwired alarm. For the alarms to be interconnected, the alarms have to be wired up on a 3 wire 120 volt circuit with 1 HOT wire, usually black, 1 NEUTRAL wire, usually white, and one INTERCONNECT wire, usually red and has no power on it and just jumps from alarm to alarm. A wiring diagram can be found in any of our owner's manual for any of our hardwired alarms and our manuals can be found at www.kidde.com . We would be happy to explain this further at Kidde Product Support at 1-800-880-6788. Thank you for your interest. Read Less
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Customer Reviews

Rated 4.5 out of 5 by 161 reviewers.
Rated 1.0 out of 5.0 by Cheap price, poor product At first, I thought this was a great deal, even though I had to purchase adapters separately to make these units compatible with my older-model alarms. (I bought two packs.) Units were relatively easy to install. (I wish they had battery compartments on the underside instead of inside, which means you have to unscrew the unit to get at the battery compartment.) Unfortunately, only about six weeks after my installation of ten alarms, they began malfunctioning—going off without provocation, usually blasting us in the middle of the night. I have since had to remove two units, including one in our bedroom so that we can sleep. (There are three other units just outside the door.) There is no way to predict when the alarms will go off again, so we're feeling very nervous about continuing to use these units. Other reviewers have had similar experiences. July 14, 2016
Rated 4.0 out of 5.0 by Smoke alarms I ordered them on line and they came very quickly.. Installed them and there working great July 19, 2016
Rated 5.0 out of 5.0 by Best value for replacement smoke detectors! We had to replace all 4 smoke detectors in our home. Shopped around--these were by far the best value we could find--6 for less than the price for 4! Very good quality brand, came with the back-up batteries also. Now we have 2 extra smoke alarms if the need should arise. Definitely would recommend this product! July 19, 2016
Rated 5.0 out of 5.0 by Kidde alarms Replacements for 2007 dated alarms, plugged in up and runnning in 5 rooms, only time involved was moving tha ladder July 13, 2016
Rated 1.0 out of 5.0 by Kidde: aptly named These babies will wake you up in the middle of the night for no reason, just like a Kidde–er. kid. There's a reason they're only $5 a piece. The good reviews here don't outweigh the risk you'll take of loosing sleep. Do yourself and your loved ones a favor and get a different model, or at least add earplugs to your cart. Absolute garbage. July 19, 2016
Rated 1.0 out of 5.0 by False alarms galore! Can't get enough of replacing 9V batteries? Are you dying to be jolted awake every time someone lights a cigarette in Bangladesh? Then the Kidde 12040 is the smoke detector for you! Equipped with Kidde's proprietary SMD (single molecule detection) technology, a simple speck of dust or a 0.003 degree change in room temperature will bring these babies to life, scaring all your pets and costing you hours of shut-eye. And when the battery is exhausted from all these false alarms, Kidde's patented "nano-chirp" alert system will completely prevent your brain from using triangulation to narrow down which detector is chirping, ensuring hours of fun detective work! Before long, you too will be bringing your Kidde 12040s outside to smash them with a sledgehammer. Fun for the whole family! June 22, 2016
Rated 5.0 out of 5.0 by Nice units Very easy to install. Base units has multiple mounting holes. Great unit for the price. Hope I never have to use them. July 12, 2016
Rated 5.0 out of 5.0 by these smoke detectors work great and are easy to install these smoke detectors work great and are easy to install, they are replacements for my 10 year old smoke detectors , BTW all smoke detectors are designed to last 8 to 10 years MAX so YES replace them for your family's safety... and remember to not put them in spider alley (typically 8" from the celling) since a spider will crawl inside and give false readings or make it not work at all. July 12, 2016
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