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  • Kidde i12040 120V AC Wire-In Smoke Alarm with Battery Backup and Smart Hush
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Kidde i12040 120V AC Wire-In Smoke Alarm with Battery Backup and Smart Hush

by Kidde
| 6 answered questions

Price: $12.30 & FREE Shipping on orders over $35. Details
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
  • Hush feature temporarily silences nuisance alarms
  • One touch test button tests unit's electronic circuitry
  • Battery backup 9V battery included
  • Tamper resist locking pin helps deter alarm tampering and theft
  • Kidde smoke alarms meet the UL requirements
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$12.30 & FREE Shipping on orders over $35. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

Kidde i12040 120V AC Wire-In Smoke Alarm with Battery Backup and Smart Hush + Kidde KN-COSM-IBA Hardwire Combination Carbon Monoxide and Smoke Alarm with Battery Backup and Voice Warning, Interconnectable + Kidde KA-B, KA-F Universal Smoke Alarm Adapters, 2 Different Units for different types of Alarms
Price for all three: $54.79

Buy the selected items together

Product Information

Technical Details
Item Weight1.6 ounces
Product Dimensions7.2 x 6 x 3.5 inches
Size1 Pack
ColorWhite
  
Additional Information
ASINB00PC5SKS2
Best Sellers Rank #803 in Home Improvement (See top 100)
Shipping Weight1.6 ounces (View shipping rates and policies)
ShippingCurrently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
Date First AvailableNovember 7, 2014
  
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Product Description

Amazon.com

The AC-powered, hardwired Kidde i12040 ionization smoke alarm is designed to protect you and your family from the dangers of smoke and fire. This smoke alarm's trademarked hush feature allows you to silence nuisance alarms, while an indicator LED and test feature let you easily confirm that the alarm is working. This wire-in smoke detector also has a battery-backup feature (with included 9-volt battery). Kidde i12040 Keep your family safe with this hardwired Kidde i12040 smoke alarm. At a Glance Kidde i12040 Wire-In Ionization Smoke Alarm At a Glance: Ionization sensing technology detects invisible fire particles Battery backup for continuous protection in case of power outage (battery included) Smart hush feature silences nuisance alarms Pre-stripped wiring harness with tinned strands 10-year limited warranty At a Glance Features The Kidde i12040 smoke alarm offers a tamper-resistant feature to deter vandalism or theft and a smart interconnect system that connects with up to 24 Kidde devices--including other smoke alarms plus carbon monoxide and heat alarms. The battery-backup feature (9-volt battery included) provides protection even during power outages when many CO incidences occur. It has a large mounting base that helps protect surface paint from dirt and covers imperfections, and its pre-stripped wiring harness has an easy-off cap and tinned strands to increase conductivity. By pressing the hush button, you can easily and safely silence nuisance alarms caused by non-emergency situations, such as overcooked dinners. This feature desensitizes the alarm for approximately seven minutes. During this time, the alarm chirps every 30 to 40 seconds. If the smoke is too dense, the hush feature is overridden and the alarm still sounds, and the alarm automatically resets at the end of the seven minutes. This convenient safety measure eliminates the temptation to remove the alarm's battery, which creates an unsafe situation. The Kidde i12040 smoke alarm uses ionization sensing technology, which may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms. Kidde recommends that both ionization and photoelectric smoke alarms be installed to insure maximum detection. What's in the Box One Kidde i12040 120V AC wire-in smoke alarm, one 9-volt battery, and operating and installation instructions. Kidde i12040

Customer Questions & Answers

Customer Reviews

Great product, easy install and works great.
Walter Rock
These new units used the same wiring, connectors, and mounting frames as the old units which was perfect -- installation took less than a minute per unit.
Rich
These are great replacements to the Kidde Smoke Alarms originally installed when the house was built.
T.O.

Most Helpful Customer Reviews

182 of 186 people found the following review helpful By Rich on August 26, 2009
Product Packaging: Standard PackagingColor Name: WhiteSize Name: 1 Pack Verified Purchase
The purpose of a smoke alarm is to alert you to a fire in your home. Thankfully I have never been able to test this unit, and I hope I never have the chance. So I'll just review the other reasons I bought this product.

I bought two of these units to replace older Kiddie model 1275 units that were malfunctioning and going off regularly for false alarms. My main concern was compatibility since I have 10 units in my house and did not want to replace them all. These new units used the same wiring, connectors, and mounting frames as the old units which was perfect -- installation took less than a minute per unit. The new units work with the old units perfectly -- pushing the test button on the new ones set off all the alarms in the house, just as they should.

I did have some hesitation about buying new Kiddie units since the old Kiddie units were malfunctioning. (To be fair, only one was malfunctioning, but I was tired of messing with troubleshooting and decided to replace the last two options.) However, only 1 in 10 of my existing units was malfunctioning, and they are 6 years old (out of a reported 10 year lifetime). The smoke alarms were installed when I bought the house, so I can't be sure the failing unit was not dropped or otherwise abused before installation. So far the new units have not produced any false alarms and are working well.
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70 of 74 people found the following review helpful By S. Kinkead on August 8, 2009
Product Packaging: Standard PackagingColor Name: WhiteSize Name: 1 Pack
I bought 7 of these as replacements for an older model that Kiddie no longer makes. Within 3 months of installation, I have had 3 false alarms (twice in the middle of the night). The false alarms came from 3 different rooms, so I have 3 defective units out of the 7 I installed.

Our home is very clean, we do not smoke, and the units that failed were in bedrooms (not the garage or kitchen). So, I can not see any reason for the false alarms.

I would not recommend this model, they are not reliable.
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29 of 29 people found the following review helpful By DavidW on May 9, 2008
Product Packaging: Standard PackagingColor Name: WhiteSize Name: 1 Pack
I needed to find a replacement for the older hard wired "Lifesaver"smoke detectors that were installed in my two 20 unit apartment buildings. It took me only 1 minute to punch out screw hole placement to existing set up. Rewired using the same set up and done. It works great and my tenants love the "Smart Hush" control to temporarily silence nuisance alarms. These will be my choice for all future replacements throughout each unit as needed.
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15 of 15 people found the following review helpful By macts473 on July 23, 2011
Product Packaging: Standard PackagingColor Name: WhiteSize Name: 1 Pack Verified Purchase
The 11 year old detectors currently in my house are Kidde Model 1275. Looking to replace them (Manufacturer and most Fire codes recommend new every 10 years), I found that the Model 1275 is no longer made and it really was not clear from the product description if the i12040 was an EXACT replacement. It is. It was REALLY easy to install. In fact, the base of the old 1275 and the new i12040 were the same as were the wiring connectors. I replaced the mounting bases on mine (Took about three minutes each) only because the originals had discolored over time. Each old detector out and new one installed, including changing the base, in about five minutes with just a screwdriver to remove and replace the base mounting screws. It took me longer to get my ladder out that it took to do the switch.
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59 of 70 people found the following review helpful By John Z. on November 28, 2009
Product Packaging: Standard PackagingColor Name: WhiteSize Name: 1 Pack Verified Purchase
I had a house full of Kidde 1275 smoke alarms, and after several malfunctions (including one electrical problem causing it to literally "go up in smoke"), I replaced them with the i12040 ... only because I wanted something that would "drop in" with the current mounting system and wiring. That they did, and I've had no false alarms in the month they've been installed.

Why the 2 stars? Previous to purchasing, I contacted Kidde (via their customer service web page) to ensure the i12040 units had the same mounting system as the old 1275's and to ensure the wiring would be compatible with all the Kidde alarms on the system. Kidde never responded. I found out from a do-it-yourself web forum that these would work fine.

Kidde's customer support is notoriously poor. The old 1275 units were deficient in design and/or manufacture - and Kidde refused to acknowledge this. I won't give high marks to a company that won't respond to customer service issues.
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15 of 15 people found the following review helpful By Smileyface on December 15, 2010
Product Packaging: Standard PackagingColor Name: WhiteSize Name: 1 Pack Verified Purchase
I replaced my 1275's with these i12040's a/c the 1275's were 7 years old and after I had chg'd batteries and cleaned all 5 units I still got intermittent chirps(2am lol)So after some investigation I read on Amazons reviews these were replacements for the 1275's(and i didn't have to change out the mounts) Ive had them installed now for a couple of months and I'm completely satisfied
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19 of 20 people found the following review helpful By R.A. on October 29, 2009
Product Packaging: Standard PackagingColor Name: WhiteSize Name: 1 Pack
My house is about 10y and had the Kidde 1275's. Never had any issue with them, but it was that time to replace them as they are coming of age.

These used the same connectors, so all I did is change the mounting ring, since the others were discolored with age and plugged them in. No more than 5 min each. Had to change 8 of them out.

Kidde makes good products that are reliable!
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12 of 13 people found the following review helpful By Amazon Customer on July 25, 2011
Product Packaging: Standard PackagingColor Name: WhiteSize Name: 1 Pack Verified Purchase
Replaced the older model as everyone else and was happy with how easy it was. Then, the false alarms started coming about a month later. Going to try to switch to a different brand and hope I can use existing wiring some how.
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Kidde i12040 120V AC Wire-In Smoke Alarm with Battery Backup and Smart Hush
This item: Kidde i12040 120V AC Wire-In Smoke Alarm with Battery Backup and Smart Hush
Price: $12.30
Ships from and sold by Amazon.com