Model # 21006373

Internet #100179554

Kidde Hardwire 120-Volt Inter-Connectable Smoke Alarm with Battery Backup (6-Pack)
0047871099702

Kidde

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

  • Direct wire
  • Hush button
  • Ionization sensor
$5400 /each

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Product Overview

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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.

  • 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)


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Name Hardwire 120-Volt Inter-Connectable Smoke Alarm with Battery Backup (6-Pack) Hardwired 120-Volt Inter-Connectable Ionization Smoke Alarm with Battery Backup (4-Pack) Hardwired 120-Volt Inter-Connectable Smoke Alarm with Battery Backup i12060 (6-Pack) Worry Free Hardwired Inter-Connectable 120-Volt Smoke Alarm with 10-Year Lithium Battery Back Up (3-Pack)
Brand Kidde FireX FireX Kidde
Ratings (333) (160) (99) (132)
Commercial / Residential Commercial / Residential Commercial / Residential Commercial / Residential Commercial / Residential
Alarm Type Smoke Smoke Smoke Smoke
Power Source Hardwired Hardwired Hardwired Hardwired
Alarm Sensor Type Ionization Ionization Ionization Ionization
Alarm/Detector Features Battery Back-Up,Hush Feature,Interconnected,Value Pack Battery Back-Up,Hush Feature,Interconnected,Value Pack Battery Back-Up,Hush Feature,Interconnected,Value Pack 10-Year Battery,Battery Back-Up,Hush Feature,Interconnected,No Additional Features,Tamper Resistant,Value Pack
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Customer Questions & Answers

in changing=== the alarms wires do you have to turn off the power

in changing=== the alarms wires do you have to turn off the power
Asked by: marvin
A friend who is knowledgeable about this told me it was not necessary to turn off the power as long as I just worked on one wire at a time and did not allow the different colored wires to touch each other with the caps off. He told me to unscrew existing cap, remove old wire, put end of new wire next to wire end of same color in ceiling, then screw cap back on tightly. Then move to the next color and repeat. It worked fine for me.
Answered by: PizzaG
Date published: 2017-05-13

Disconnect one alarm unit

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?
Asked by: Luke
I would not recommend calling Kidde. I made that mistake and was told that what I was describing was not there. Then I was told that some fire departments will come out and help with smoke detector issues. If that fails, I was advised to pay for a handyman to come out. Meanwhile, I have two chirping smoke detectors.
Answered by: jawjahpeach
Date published: 2017-04-26

Is the date on the back of these devices the date of manufacture or the date of expiration

I moved into this home on April 2014. The home was built in 2007-2008. I had a false alarm triggered by 1 of the 6 detectors featured here - yesterday. A friend of mine who is also a FF suggested that I simply replace the device instead of cleaning/vacuuming it. However, the date on the back of the detector reads, "2013 Nov 05". I would be surprised if the previous owner changed all the detectors last fall but if it is this new I am hesitant to have to replace this hardwired device as false alarms to happen for a number of reasons. Any feedback is appreciated.
Asked by: kpo123
those dates on the back are the manufacture date.
Answered by: Rafael
Date published: 2017-02-12

3 wires or 2?

Do these units have 3 wires or 2? In the picture it shows 3 wires with no connectors, a red, a black, and a white. The text description says 2 wires. Thats a bit confusing. I am replacing 6 existing hardwired units from a different brand called USI that have 3 wires, a black, a white, and a yellow. I'm going to have to splice the connectors off the old detectors and onto these new ones but want to make sure that these have 3 wires as well. Thanks.
Asked by: Daniel
These units have a THREE prong connector into which an assumed *three* hard wired prong provider in the ceiling are expected to connect. Because of the hassle of dismounting the unit(s) when the battery requires replacement (about once a year), the use of the plug in connector could be an advantage IF your three wires can be assembled into an appropriate provider of the required three prongs. In any event, YES these are in fact three wire units.
Answered by: bgrumbin
Date published: 2016-10-24
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Customer Reviews

Hardwire 120-Volt Inter-Connectable Smoke Alarm with Battery Backup (6-Pack) is rated 4.6 out of 5 by 332.
Rated 4 out of 5 by from If you need 6 smoke alarms this is a good cost/item deal. easy to install, they didn't exactly fi... If you need 6 smoke alarms this is a good cost/item deal. easy to install, they didn't exactly fit the same wiring or connector as my old units but were easy enough to change out. The only real downside to these units is that the battery cover is on the back side of the unit. You have to twist out the unit from the ceiling and remove the wires when replacing the battery. If that's not a problem for you then I would recommend them. My picture shows the backside of the alarm so that you can see the battery compartment.
Date published: 2016-12-21
Rated 1 out of 5 by from 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!
Date published: 2016-06-22
Rated 3 out of 5 by from The detectors are fine.....Don't install the batteries (Kidde Gold Peak 9volt, made in China) tha... The detectors are fine.....Don't install the batteries (Kidde Gold Peak 9volt, made in China) that come with the detector--use new alkaline 9V batteries and save yourself some extra work. I purchase 2 "six-packs" to replace all the detectors in my house one year ago from this review. (I needed 10, it was more economical to by two six packs). In the last year, out of 10 installed detectors, I've had replace batteries in 3 detectors. Approximate time lines for the low battery chirp are 1st battery replaced at 4 months, 2nd battery at 6 months and third battery replaced at 10 months.
Date published: 2017-04-26
Rated 4 out of 5 by from Fast shipping, easy installation Ordered from the store on a Sunday afternoon, and received it on Tuesday afternoon. Fastest shipment I ever experienced. Detectors used newer version of pigtail than my 12 year old Kidde system, but changeover was a simple matter, that took less than five minutes per unit. This revision of my former Kidde is a good one. Hush feature is more positive, alarm phasing to other units is much swifter. Alarm is much more sensitive to low levels of smoke, giving greater confidence. My only complaint is with the limited holes in mounting bezel, and that they were scored, but not pre punched! If I were an installer, I would be extremely frustrated with this totally unnecessary nuisance. Battery change is a bit more involved, but not difficult. Units are bright white, and more attractive than many detection products.
Date published: 2016-12-27
Rated 1 out of 5 by from Had to replace all 10 of the supposedly smoke detectors... Had to replace all 10 of the supposedly smoke detectors because the units would not work as a single unit. As in when one unit detects smoke all the alarms send a siren or signal. The red connection wire was hooked as it was suppose to (in series with each other but each unit acted independently)
Date published: 2017-05-16
Rated 5 out of 5 by from These were used to replace 5 year old ones in... These were used to replace 5 year old ones in my house. I had purchased a different brand at that time and had issues of them randomly going off. I have previously purchased this brand and same model for my daughters house and never an issue. Easy to wire in and install
Date published: 2017-04-18
Rated 5 out of 5 by from Excellent pack of smoke alarms. Interconnected with other Kidde brand smoke alarms and they all ... Excellent pack of smoke alarms. Interconnected with other Kidde brand smoke alarms and they all function flawlessly. Using FireX models in the basement and they had no problem connecting with these. They are easy to install and look great.
Date published: 2017-01-04
Rated 5 out of 5 by from I bought this 6 pack to replace my existing alarms that were hard wired in when we built our hous... I bought this 6 pack to replace my existing alarms that were hard wired in when we built our house 15 years ago. This was an easy swap. Replacement of all six took about 20 minutes.
Date published: 2016-11-02
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