Two white plastic electrical connector housings linked by red and black insulated wires, their metal pins exposed, resting on a plain white background for product display.

Quick Convert Adapter - KA-B2

KA-B2

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.

  • For use with First Alert® and BRK® wire-in smoke alarms.

  • The KA-B can only be used when replacing First Alert® models: SA4121B, and BRK® models: 4120, 4919, 5919, 86RAC with plug in connector manufactured before June 1, 2003.

Helpful Resources
Two white plastic electrical connector housings linked by red and black insulated wires, their metal pins exposed, resting on a plain white background for product display.
Details
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Key Features
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Specifications
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Helpful Resources

Click on the links to learn more.

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Image of a person holding an adapter next to their new alarm.
A red fire extinguisher and three Kidde smoke/CO detectors (one boxed) stand arranged on a light wood tabletop against a pale wall, accompanied by a round "#1" safety-brand badge.

Why Kidde

As North America's #1 home fire safety brand,* Kidde has been working to help make your home the safest it can be for more than 100 years. Now, our latest smoke alarms and combination smoke + carbon monoxide (CO) alarms are bringing you the next level of fire and CO safety. Help protect what matters most in your life with features like cutting edge technology that send fast alerts to give your family more time to get out safely. And enhanced sensing technology that reduces false alarms often caused by cooking.

*Based on total household installations as of December 2023.