Model # 21006374

Internet #100189792

Kidde Hardwire 120-Volt Interconnectable Smoke Alarm
0047871403790

Discontinued Kidde

Hardwire 120-Volt Interconnectable Smoke Alarm

  • Hardwired alarm
  • Ionization sensor smoke alarm
  • Battery back up(included)

Frequently Bought Together

Product Overview

Basic AC powered ionization smoke alarm with hush and test features. Alarm uses ionization sensing technology. Ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric sensing technology alarms. It also has a tamper resist locking feature to deter alarm theft. Alarm memory flashes red LED indicating which unit was the initiating alarm in interconnected system.

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.

Compare Similar

Price
$10.19 /each
$13.97 /each
$14.97 /each
$29.97 /each
Name Hardwired 120-Volt Inter-Connectable Smoke Detector with Battery Backup Hardwire 120-Volt Interconnectable Smoke Alarm Hardwired 120-Volt Inter-Connectable Smoke Alarm with Battery Backup Worry Free 120-Volt Hardwired Inter-Connectable Smoke Alarm with 10-Year Battery Backup
Brand Code One Kidde FireX Kidde
Ratings (41) (10) (305) (121)
Alarm Sensor Type Ionization Ionization Ionization Ionization
Alarm/Detector Features Battery Back-Up,Hush Feature Hush Feature Battery Back-Up,Hush Feature,Interconnected 10-Year Battery,Battery Back-Up,Hush Feature,Interconnected,No Additional Features,Tamper Resistant
Power Source Hardwired Hardwired Hardwired Hardwired
Commercial / Residential Commercial / Residential Commercial / Residential Commercial / Residential Commercial / Residential
Alarm Type Smoke Smoke Smoke Smoke
View Product View Product View Product View Product

Specifications

Dimensions

Details

Warranty / Certifications

More Products With These Features

Search

Customer Questions & Answers

Since this is discontinued, which new model inter-work with this one?

I have a few i12020's and the equivalent with battery, all connected to each other. One of the electric-only is beeping, and I need to replace it. Since the exact model i12020 is discontinued, what should I buy, short from replacing all of them? Thanks!
Asked by: Oz
Hello Oz. The alarm that replaces the I12020 is the i12040A or the P12040. 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 I12040A, the P12040, and the I12080A all have the same mounting bracket as the I12020. 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 very early 2000'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 except for the KN-COSM-IBA, I12010S, and the I12010SCO. 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. Speaking of the I12010S, the I12010S has a built-in 10 year battery that will last the life of the alarm, if you want to avoid changing batteries. We are Kidde Product Support at 1-800-880-6788. Thank you for your interest.
Answered by: Kidde Expert
Date published: 2016-06-02

Replacement for model 1275????

Need to replace 5 existing model 1275 detectors. Will the model 21006 wiring harness and mounting bracket interchange?
Asked by: jimbo
Hello Jimbo. The alarm that replaces the 1275 is the i12040A or the P12040. This alarm you have chosen is the I12040A. 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 I12040A, the P12040, and the I12080A all have the same mounting bracket as the 1275. 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. If you have further questions about this, we are happy to answer your questions at Kidde Product Support at 1-800-880-6788. Thank you for your interest.
Answered by: Kidde Expert
Date published: 2015-10-17

fireX MODEL H

WILL THE KIDDE FYR21006374 REPLACE FIREX MOD.H
Asked by: TIM
Hello Tim. There is no direct replacement for the model H. The new alarms will have a different wiring harness plug that will have to be wired in and a different bracket. The new alarms will come with new plugs and new brackets. If you have further questions about this, you can call us at Kidde Product Support at 1-800-880-6788. Thank you for your interest.
Answered by: Kidde Expert
Date published: 2015-09-29

I HAVE A 25 YEAR OLD FIREX MODEL G6 THAT SEEMS FAULTY, WITH FREQUENT CHIRPING.

I HAVE TWO OTHERS ON THE CIRCUIT. SHOULD ALL BE REPLACED? IS THERE A BATTERY BACKUP? IF NOT WHAT IF THE ELECTRICAL SYSTEM GOES DOWN?
Asked by: TOMKING
Hello. In reference to your question, this alarm shouldn't chirp. You can try vacuuming out the alarm around the side edges of the alarm to get out any dust or debris. If you still get chirping, then they should be replaced. If your alarms are over 10 years old, they should just be replaced. None of our current alarms will work with your alarms or will use this wiring harness or mounting bracket. You will have to change out the mounting brackets and wiring harnesses when you purchase new alarms and you will need to take down all of the old alarms that are interconnected with this alarm before putting up any new alarms. We make adaptors for some of the older FireX wiring harnesses but in this case they will not work for you. If you have any further questions about this, please call us at 1-800-880-6788 and we would be happy to answer your questions. Thank you for your interest.
Answered by: Kidde Expert
Date published: 2015-09-20
  • y_2017, m_4, d_24, h_24CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_7
  • loc_, sid_100189792, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=BEST_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=POSITIVE_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 105ms
  • QUESTIONS, PRODUCT

Customer Reviews

Hardwire 120-Volt Interconnectable Smoke Alarm is rated 4.4 out of 5 by 10.
Rated 5 out of 5 by from Shipping in 48 hours Ordered 2 kiddle smoke detectors Monday evening. Found the box when I come back home from work today (Wednesday). Less than 48 hours. Detectors are exact same as the one installed by builder, but with longer life, from 10 years to 12 years. The installed base can be reused without replacing, as well as the power cable. Very simple work for replacing 2 detectors in 5 minutes.
Date published: 2016-11-10
Rated 1 out of 5 by from FALSE ALARMS!!!! I was happy with this alarm when I first purchased it to replace all of my old discolored in my home due to the universal plug & quick installation. However, less than 48 hours after installing all 13 of them in my house I have had false alarms going off every 4-18 hours at random times & in the middle of the night (not much fun when you have a 5 month old that just started sleeping through the night).Now, I have about a 8 hour testing & troubleshooting process to go through to find out how many of them are actually bad. I would strongly recommend to spend a few extra bucks, get a better unit even if it requires some rewiring. Naturally, I don't have the boxes anymore so returning them is out of the question.
Date published: 2011-06-26
Rated 5 out of 5 by from Best simple smoke alarm out there Best simple smoke alarm out there Hardwired with battery backup
Date published: 2016-09-10
Rated 5 out of 5 by from Perfect alarm for a home with a battery back up system. If your home has a battery back up system for your hard wired fire and alarm systems this unit is the perfect choice. No separate unit battery to maintain or replace. Hush feature is a must and the green/red LED light lets you know immediately if your unit is working or which unit initiated the alarm. Easy install.
Date published: 2011-05-28
Rated 5 out of 5 by from Just what the doctor ordered Perfect fit and most importantly, they work wonderfully. I didn't even have to replace the base, just plug in and test. They were also very economical.
Date published: 2013-11-12
Rated 4 out of 5 by from Easy to install, no false alarms This was an easy retrofit due to the wiring harness it comes with plus the mounting plate had several hole width options, so it was an easy replacement of the unit I was replacing.
Date published: 2013-10-30
Rated 4 out of 5 by from Replacements for 10 year old originals Direct replacement. I have 7 tied together. The two I have replaced have a red light that flashes periodically that I don't find in the instructions. Maybe when I get them all changed out the red light will stop. For now it's not a problem. They do work with the old units.
Date published: 2014-10-17
Rated 5 out of 5 by from six were not enough it wasn't clear in the write up but these detectors have no battery. This was actually good because two of the detectors I replaced were so high up I had to bring in my extension ladder to get to them--a real pain when the battery starts chirping.
Date published: 2015-08-05
  • y_2017, m_4, d_24, h_2
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_10
  • loc_, sid_100189792, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 107ms
  • REVIEWS, PRODUCT