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

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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.

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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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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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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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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 168 reviewers.
Rated 5.0 out of 5.0 by Smooth Upgrade/Install 6-Pack Smoke Alarm Installed 6 new hard wire, interconnected, smoke alarms. The install went smoothly without some of the issues mentioned in other posts. About 45min for all 6, less than $10/ea, great value! ***These smoke alarms require power to each alarm, black, white and Common(red) lines. Otherwise they will beep when just on battery power. Product comes with 6 sets of instruction, smoke alarm, mounting bracket and connector (battery already installed). The i12040 is almost a direct replacement for the 11 year old Fire 2040s that were there. The mounting bracket and power connector are different from the older version, so each bracket had to be replaced as well as the power connector. The new bracket went over the hole perfectly and the smoke alarm mounted securely. NOTE: No screws or anything for the mounting bracket, I reused the ones from the old alarms. The smoke alarms started to beep and I removed the yellow tag marked "remove after connecting power and mounting to ceiling", then no beep. Tested all units, when one goes off, they all go off. Done. August 16, 2016
Rated 3.0 out of 5.0 by Eh Not sure if the ones that aren't working are because of the product or an issue with our wiring. Half of the units aren't functioning though. August 16, 2016
Rated 5.0 out of 5.0 by Install of smoke alarm Shipped to my home as advertised. Easy install. Maybe twenty minutes for all six.Even a caveman can do it. August 16, 2016
Rated 1.0 out of 5.0 by If you want to sleep unless there is a real fire, DON"T BUY THESE!!!! replaced 7, old Kidde alarms in my home with new p12040 models form Home Depot. The old ones were 14 years old and the old issue was they would chip when the battery was low. No big deal, but to be safe we got new ones. The new ones have had TWO false alarms in less than 4 months. I would avoid these! Kidde and parent company UTC apparently changed something to save a buck. If you want to stress test your heart, then get these. If you want to sleep DO NOT BUY THEM!!!! August 8, 2016
Rated 5.0 out of 5.0 by Great value for replacement smoke detectors!!! A great value for replacing older smoke detectors. Was easy as plug and play! August 16, 2016
Rated 5.0 out of 5.0 by Even came with batteries! Worked exactly as described and even came with 9V batteries from the recommended brand already installed in each unit. Plug and play. Replaced all of my older Kidde units in 30 minutes, including the mounting bracket (which still fits, but my old ones were discolored so I replaced them). Would definitely recommend. August 9, 2016
Rated 5.0 out of 5.0 by best Buy excellent product and also economic best Buy al the Home Depot August 2, 2016
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
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