Model # 21010407-A

Internet #205422307

Store SKU #1000392327

Kidde Worry Free 120-Volt Hardwired Inter-Connectable Smoke Alarm with 10-Year Battery Backup
0047871114078

Kidde

Worry Free 120-Volt Hardwired Inter-Connectable Smoke Alarm with 10-Year Battery Backup

  • 10 year battery back up
  • ACDC installs
  • Ionization sensor
$29.97 / each
If you buy 6 or more
$25.47 / each
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Frequently Bought Together

Product Overview

Kidde 10 Year Worry Free Smoke Alarms protect your family for 10 years with a "sealed in" Lithium Ion Battery back up. 10 year Worry Free smoke alarms protect against tampering with a sealed in battery. 10 Year alarms provide an "End of Life" indicator at end of the product life alerting you to replace your smoke alarm.

Info & Guides

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Price
$17.97 /each
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Name Hardwired 120-Volt Inter-Connectable Smoke Alarm With Battery Backup Includes Universal Adapters Worry Free 120-Volt Hardwired Inter-Connectable Smoke Alarm with 10-Year Battery Backup FireX Hardwired 120-Volt Inter-Connectable Dual Sensor Photoelectric and Ionization Smoke Alarm with Battery Backup Hardwire 120-Volt Inter-Connectable Smoke Alarm with Battery Backup (6-Pack)
Brand Kidde Kidde Kidde Kidde
Ratings (357) (148) (93) (384)
Power Source Hardwired Hardwired Hardwired Hardwired
Alarm Sensor Type Ionization Ionization Dual-Sensor Ionization
Alarm/Detector Features Battery Back-Up,Hush Feature,Interconnected 10-Year Battery,Battery Back-Up,Hush Feature,Interconnected,No Additional Features,Tamper Resistant Battery Back-Up,Hush Feature,Interconnected Battery Back-Up,Hush Feature,Interconnected,Value Pack
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Specifications

Dimensions

Product Depth (in.)
1.75
Product Height (in.)
5.5
Product Width (in.)
5.5

Details

Alarm Sensor Type
Ionization
Alarm Type
Smoke
Alarm/Detector Features
10-Year Battery,Battery Back-Up,Hush Feature,Interconnected,No Additional Features,Tamper Resistant
Commercial / Residential
Commercial / Residential
Connector/Contact Type
None
Included
Batteries
Pack Size
1
Power Source
Hardwired
Returnable
90-Day
Voltage (volts)
120

Warranty / Certifications

Certifications and Listings
1-UL Listed

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Customer Questions & Answers

We replaced nine smoke detectors with this model in our home. One beeps about every 30 seconds. Is it a bad unit?

Tried flipping the breaker but did not help.
Asked by: MO
I would contact the manufacturer with model number. They will tell you the definitive answer.
Answered by: Jimma6
Date published: 2017-03-07

Are these smoke detectors ionazation or photoelectric?

Asked by: sophie
They have a lithium ion battery.
Answered by: MGN
Date published: 2017-04-30

I live in a 12 year old condo with 5 hard wired smoke alarms w/9 volt battery backup I periodical...

I live in a 12 year old condo with 5 hard wired smoke alarms w/9 volt battery backup I periodically replace the batteries. Do these devices wear out over time and do I need to replace my existing alarms?
Asked by: Poppop
All alarms have a life span. You can get that info from the manufacturer's website when you research the make and model.
Answered by: Jimma6
Date published: 2017-03-07

I just installed 8 of these and have since noticed a high pitch humming throughout the house-- l...

I just installed 8 of these and have since noticed a high pitch humming throughout the house-- loudest where alarms are in close proximity. Have I installed them wrong? It's an electrical sound, not the sound of the actual alarm, which is what makes me wonder if I need to change something. One was particularly bad, but I replaced it and it's now to the same sound as the rest.
Asked by: th15
Sounds like you have them to close together. My suggestion is try disconnecting a copy of them to see if you still have the noise. if that doesn't work then I suggest you contact an electrician.
Answered by: job
Date published: 2017-08-10
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Customer Reviews

Worry Free 120-Volt Hardwired Inter-Connectable Smoke Alarm with 10-Year Battery Backup is rated 4.4 out of 5 by 144.
Rated 2 out of 5 by from If you love being awakened with false alarms at 2 a.m., this is the alarm to install! I bought e... If you love being awakened with false alarms at 2 a.m., this is the alarm to install! I bought eight (8) of these, with the idea that I wouldn't have to change batteries once a year and perhaps save some money. The reality is that after 3 months of installation, I have had 3 false alarms on 3 different devices. My research elsewhere now discloses that this is a characteristic of this alarm, as they are very sensitive to dust, insects, etc., all of which will trigger a false alarm. The company's suggestion to cure this? Use compressed air monthly to clean the units. So much for convenience and cost savings. Don't waste your money.
Date published: 2017-06-14
Rated 1 out of 5 by from Not happy with this product. I bought the product because of the maintenance free aspect of not h... Not happy with this product. I bought the product because of the maintenance free aspect of not having to change the battery for 10 years. However, the green light that glows solid also glows outside the unit around the entire perimeter of the base. It lights up the ceiling in a dark room and is very annoying, especially in the bedrooms. I am returning the product (all 6 of them) and going back to the older style with the 9v backup battery. I contacted Kidde customer support online a week ago and have not heard anything back from them. Poor customer support and relations. Would not recommend this product.
Date published: 2017-04-27
Rated 5 out of 5 by from I replaced three old hardwired inter-connected Kidde smoke detectors with the new worry free hard... I replaced three old hardwired inter-connected Kidde smoke detectors with the new worry free hardwired inter-connect 10-year lithium back up battery detectors. The switch out was easy. Disconnect the old smoke detector, remove the old base plate, install the new base plate and connect the new detectors. I did not have to rewire the new detectors because the original wired connector worked with the new detectors. They worked great look good and now I don't have to worry about changing the 9 volt battery every year. I guess I'll do this again in 10/11 years.
Date published: 2017-03-01
Rated 5 out of 5 by from I used this to replace a 20 year old hard wired smoke detector (yes, I know, 20 years. I bought t... I used this to replace a 20 year old hard wired smoke detector (yes, I know, 20 years. I bought the home with it). It is very easy to install with the pigtail plug that you are hard wire, install the mounting plate, then plug it in before you twist it into the locked position. I like that it comes with a 10 year battery, but it did worry us as it beeped a few times a couple of days after I installed it. It sounded like a low battery beep. We were not cooking at the time and it hasn't happened since. Another thing that we like about it, is the silence button when cooking does set it off. It silences it for a few minutes then resets. I will probably be changing out a few other detectors that we have for this, when the low battery alarm goes off on them.
Date published: 2017-04-10
Rated 5 out of 5 by from These smoke alarms were purchased to replace the original ones that came with my home when it was... These smoke alarms were purchased to replace the original ones that came with my home when it was built 10 years ago. These were easy to install given that the existing wiring and and boxes were already in place. I had to replace 7 of them and it took me about an hour to complete the entire job. Looking forward to not replacing batteries twice a year for quite a while. Only wish it had come with a way to send in the old alarms which need to be recycled due to the materials inside.
Date published: 2017-04-25
Rated 5 out of 5 by from The units came with clear instructions,BUT, nowhere in the get started guide did I see the interp... The units came with clear instructions,BUT, nowhere in the get started guide did I see the interpretations of the blinking pattern for the red and green LEDs. That is on the back of the unit and when it is mounted unavailable to the user. It was very easy to mount and the 10-year guaranteed Lithium battery is a real plus as I needed a 10 foot ladder to install the units. That will more than pay for the units over the 10 year period.
Date published: 2017-05-30
Rated 5 out of 5 by from So far excellent.I did not realize this came with a plug in harness similar to the one on my old ... So far excellent.I did not realize this came with a plug in harness similar to the one on my old Kidde 1275 that I was replacing. I had to change one but it just meant turning off the power at the panel and twisting some wire nuts off and then on. I found the Kidde web site a bit confusing on this point but it worked out and one doesn't have to call an electrician to use these as a replacement.
Date published: 2017-05-02
Rated 5 out of 5 by from Peace of Mind I was replacing 11 year old Kidde smoke alarms. I appreciated the ease of installation because the new ones fit perfectly onto the old base. I travel frequently for extended periods of time to enjoy my grandchildren and am happy not to have to worry that the alarm beeping it's low battery warning while I'm away.
Date published: 2017-02-22
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