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Kidde Quick Convert Firex Adapter - KA-F2 (1 Pack)

4.5 4.5 out of 5 stars 671 ratings
$8.50
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Purchase options and add-ons

Brand AAZV
Style simple
Color Red, White, Black
Sensor Type Ionization

About this item

  • Helps you to quickly replace Firex or wire-in smoke alarms. The KA-F2 can only be used when replacing Firex models: FADC, ADC, AD.
  • The KA-F2 can be used with all AC/DC Kidde smoke and combination alarms.
  • Kidde KA-F2 Quick Convert Adapter, AC Plug-In Adapter for Retro Fit from Firex to Kidde (Previous Model KA-F)
  • The quick convert adapter allows the installation of a new Kidde alarm to an existing competitive wiring harness.
› See more product details

Customer ratings by feature

Easy to use
4.5 4.5
Easy to install
4.4 4.4
Value for money
4.3 4.3
See all reviews
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  1. Kidde Smoke Detector, Hardwired Smoke Alarm with Battery Backup, Front-Load Battery Door, Test-Silence Button, 1 Pack
  2. Kidde FireX Hardwire Smoke Detector Alarm with Battery Backup | Model 21006931
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Kidde Quick Convert Firex Adapter - KA-F2 (1 Pack)

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Product Description

The quick convert adapter allows the installation of a new Kidde alarm to an existing competitive wiring harness. This allows for easy installation when replacing the specified smoke alarm brands with a Kidde product. The smoke alarm adapter also allows the specified approved brands and models to be interconnected with other Kidde product. This adapter can only be used when replacing Firex models; FADC, ADC, AND AD. These models have been tested for interconnect compatibility with the Kidde alarm models; 1235, 1275, 1276, 1285, i12020, i12040, i12060, i12080, i4618, PE120, PI2000, KN-COSM-IB, KN-COB-IC, KN-COP-IC, AND RF-SM-ACDC.

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Price$8.50$14.00-12% $64.99
Typical: $73.73		$35.00$48.56-16% $46.06
List: $54.99
Delivery
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Customer Ratings
4.54.5 out of 5 stars671
4.54.5 out of 5 stars512
4.64.6 out of 5 stars7,204
4.64.6 out of 5 stars7,204
4.64.6 out of 5 stars341
4.54.5 out of 5 stars1,056
Easy to install
4.4
4.3
4.5
4.5
4.2
3.8
Value for money
4.3
4.3
4.2
4.2
4.2
3.8
Battery life
—
—
4.0
4.0
3.6
3.9
Sold By
Zbeem
Supply House Market Place (s/n recorded)
Amazon.com
Amazon.com
Amazon.com
Amazon.com
power source
—
Corded Electric
Hardwired
Hardwired
Hardwired
Hardwired
sensor type
Ionization
Ionization
Ionization
Ionization
Electrochemical, Photoelectric
Photoelectric, Electrochemical
lower temperature rate
—
—
40 degrees fahrenheit
40 degrees fahrenheit
40 degrees fahrenheit
40 degrees fahrenheit
upper temperature rate
—
—
100 degrees fahrenheit
100 degrees fahrenheit
100 degrees fahrenheit
100 degrees fahrenheit
style
simple
simple
6th Edition Alarm
6th Edition Alarm
6th Edition Alarm
6th Edition Alarm
alarm
—
Combination
fire safety, ionization, wired, interconnected, tamper-resistant
fire safety, ionization, wired, interconnected, tamper-resistant
Smoke and Carbon Monoxide Alarm
Fire, Smoke, Carbon Monoxide
operating humidity
—
—
5% to 95% relative humidity, non-condensing
5% to 95% relative humidity, non-condensing
10%-95% relative humidity, non-condensing
10% to 95% relative humidity, non condensing
weight
—
—
0.5 pounds
0.5 pounds
0.53 pounds
0.45 pounds

Customer reviews

4.5 out of 5 stars
4.5 out of 5
671 global ratings

Customers say

Customers like the ease of installation using the wiring harness adapter. They say it's easy to connect and works great. They also appreciate the value for money and the ease with which it can replace older smoke detectors. However, some customers have reported issues with the adapter not fitting their alarms.

AI-generated from the text of customer reviews

27 customers mention27 positive0 negative

Customers find the installation of the gas smoke fire alarm to be easy and quick. They mention that it saves time and labor, and that it beats having to rewire.

"Omg this was extremely easy and worked perfectly! Beats having to rewire!" Read more

"Pretty simple, really. Had bought a new fire alarm to replace an old one. Did not realize that the two connections were incompatible...." Read more

"Easy quick connect for older generation wire connection to new device by same manufacturer" Read more

"...wiring harness adapter worked perfectly and I was able to easily install a new Kidde unit, upgrading from an outdated Firex unit!..." Read more

19 customers mention19 positive0 negative

Customers are satisfied with the performance of the wiring harness adapter. They mention that it works great, it's a simple plug-in solution that works, and it'll work for a quick installation.

"Omg this was extremely easy and worked perfectly! Beats having to rewire!" Read more

"...So, I ordered this adapter and it worked with no issues...." Read more

"This wiring harness adapter worked perfectly and I was able to easily install a new Kidde unit, upgrading from an outdated Firex unit!..." Read more

"Try is worked perfectly. I had a old detector with the straight 3 prong connector that went bad...." Read more

6 customers mention6 positive0 negative

Customers appreciate the value of the gas smoke fire alarm. They say it's worth the price, easy to install, and saves them time and money.

"...Excellent quality and worth the price when considering quality of construction and ease of use. HIGHLY recommended!" Read more

"Great idea reasonable price easy to plug the wires in...." Read more

"Easy to install, saved me time and money," Read more

"Good price but wrong size socket on the power point side, may be is my mistake never check properly" Read more

4 customers mention4 positive0 negative

Customers find the adapter quick and easy to replace their old, outdated Firex smoke detector. They also say it's a good product to replace older systems.

"With this adapter it is quick and easy to replace your old outdated Firex smoke detector with a Kidde Smoke Detector, Hardwired Smoke Alarm with..." Read more

"Good product to replace older systems..." Read more

"Great for replacing my older smoke detectors!..." Read more

"EASY REPLACEMENT of Smoke alarms..." Read more

13 customers mention3 positive10 negative

Customers are dissatisfied with the fit of the adapter. They mention that it didn't fit their alarms, the large connectors didn' t fit back into the junction box, and the new smoke detectors didn’ t work with the old wiring harness. They also complain about the size of the plastic housings, saying that it takes up space and is difficult to squeeze it all into the box.

"...three of them I did not use the adaptor because of the large connectors not fitting back into the junction box. I had to cut power and rewire." Read more

"...it with Kidde's current model 900-CUAR-V this adaptor does not fit the new product. Kidde has a part that will fit: 20-9003." Read more

"...plugs didn’t match with new plugs but with these connectors the fit was perfect!!" Read more

"...The new smoke detectors do not fit the old wiring harness in the ceiling but this adapter works fine so we didn't have to do any major electrical..." Read more

Success replacing Firex 120-1182 - with some work
5 Stars
Success replacing Firex 120-1182 - with some work
Wanted to use this adapter rather than rewiring the electrical box. It worked with some difficulty because the box was already pretty jammed with wiring. To get it all into the box, I had to use tin snips to cut off the large plastic tab that was at right angles to the connector. I could get the rest in "flat" but the tab at right angles had to go. The picture is before I cut that tab off. - signed 70+ year old DIYer.Will be doing more replacements -- one by one.Update: ended up replacing nine alarms -- three of them I did not use the adaptor because of the large connectors not fitting back into the junction box. I had to cut power and rewire.
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Top reviews from the United States

WV
5.0 out of 5 stars Worked perfectly!
Reviewed in the United States on February 7, 2024
Verified Purchase
Omg this was extremely easy and worked perfectly! Beats having to rewire!
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MC
5.0 out of 5 stars Came in very handy for hard wired fire alarm
Reviewed in the United States on November 21, 2022
Verified Purchase
Pretty simple, really. Had bought a new fire alarm to replace an old one. Did not realize that the two connections were incompatible. So, I ordered this adapter and it worked with no issues. Only trouble was shoving the combined plugs into the fire alarm socket, but with a bit of elbow grease, it was fine.
2 people found this helpful
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John Smith
5.0 out of 5 stars Easy
Reviewed in the United States on July 28, 2023
Verified Purchase
Easy quick connect for older generation wire connection to new device by same manufacturer
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flyguy
4.0 out of 5 stars Aggravation Relief
Reviewed in the United States on May 18, 2023
Verified Purchase
With this adapter it is quick and easy to replace your old outdated Firex smoke detector with a Kidde Smoke Detector, Hardwired Smoke Alarm with Battery Backup and Front-Load Battery Door. My Firex detector finally quit after 12 years, continual chirping signaling it’s demise even with a new battery. I purchased a new Kidde smoke alarm and this adapter and got up the nerve to climb a ladder up to the 16 ft high ceiling in my bedroom, took off the old device, loosened the mounting screws and removed the ceiling mounting plate and put the new mounting plate right back in it’s place, then attached the wiring adapter to the house wiring, then plugged it into the new smoke detector, pushed the wiring back up into the receptacle and twisted the new Kidde detector onto the mounting plate. Voila, major success and little aggravation! My only complaint is that I found the same adapter at a local big box store for almost half the price I paid!
6 people found this helpful
Helpful
 Report
Gargoyle Bill
5.0 out of 5 stars Success replacing Firex 120-1182 - with some work
Reviewed in the United States on January 23, 2022
Verified Purchase
Wanted to use this adapter rather than rewiring the electrical box. It worked with some difficulty because the box was already pretty jammed with wiring. To get it all into the box, I had to use tin snips to cut off the large plastic tab that was at right angles to the connector. I could get the rest in "flat" but the tab at right angles had to go. The picture is before I cut that tab off. - signed 70+ year old DIYer.
Will be doing more replacements -- one by one.
Update: ended up replacing nine alarms -- three of them I did not use the adaptor because of the large connectors not fitting back into the junction box. I had to cut power and rewire.
Customer image
Gargoyle Bill
5.0 out of 5 stars Success replacing Firex 120-1182 - with some work
Reviewed in the United States on January 23, 2022
Wanted to use this adapter rather than rewiring the electrical box. It worked with some difficulty because the box was already pretty jammed with wiring. To get it all into the box, I had to use tin snips to cut off the large plastic tab that was at right angles to the connector. I could get the rest in "flat" but the tab at right angles had to go. The picture is before I cut that tab off. - signed 70+ year old DIYer.
Will be doing more replacements -- one by one.
Update: ended up replacing nine alarms -- three of them I did not use the adaptor because of the large connectors not fitting back into the junction box. I had to cut power and rewire.
Images in this review
Customer image Customer image
Customer imageCustomer image
6 people found this helpful
Helpful
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Njt
5.0 out of 5 stars Saves Time and labor
Reviewed in the United States on February 7, 2023
Verified Purchase
This wiring harness adapter worked perfectly and I was able to easily install a new Kidde unit, upgrading from an outdated Firex unit! A little pricey but worth it in terms of time and labor savings. Highly recommend this product!
One person found this helpful
Helpful
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Jason Bruce
5.0 out of 5 stars If I Had To Do It Again....
Reviewed in the United States on March 25, 2023
Verified Purchase
I'd just rewire the damn thing. Like most of the other reviews say, there's very little room in the jbox. Because the connectors are so close together on the adapter, there's no flex with the adapter. I'm the kind of guy that has to make sure I finish what I start, so rather than twist two wire nuts, cut and strip two wires and twist back together, I resorted to using a lot of foul language and spent 3x longer using an adapter than doing it the right way.
4 people found this helpful
Helpful
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R. Tifau
5.0 out of 5 stars Exactly as described!
Reviewed in the United States on May 31, 2022
Verified Purchase
I had previously rewired changing detector brands. This is all you need and what you need to do exactly that! Excellent quality and worth the price when considering quality of construction and ease of use. HIGHLY recommended!
One person found this helpful
Helpful
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Top reviews from other countries

Geoff Bedford
4.0 out of 5 stars Plug in ends were wrong configuration.
Reviewed in Canada on January 10, 2024
Verified Purchase
A good looking product but the plug in ends did not match up.
One person found this helpful
 Report
katw
1.0 out of 5 stars Not a 2 pack, deceptive label!!!
Reviewed in Canada on March 31, 2024
Verified Purchase
One 1 item in package even though lists 2 pack, overpriced wouldn’t recommend
One person found this helpful
 Report
Fred W.
1.0 out of 5 stars wrong quantity
Reviewed in Canada on December 20, 2023
Verified Purchase
Description and packaging clearly stated 2 units. Only received one.
One person found this helpful
 Report
Marilyn G Dennis
3.0 out of 5 stars not a 2 pac
Reviewed in Canada on June 3, 2021
Verified Purchase
Not as advertised only one K A F2 connector should change the description would like a credit only received one .
3 people found this helpful
 Report
Susan
1.0 out of 5 stars Not a 2 pack
Reviewed in Canada on June 21, 2023
Verified Purchase
Although it states it is a 2 pack - it is only 1 unit
2 people found this helpful
 Report