Kidde KA-F Quick Convert Adapter, Allows Installation of Kidde Smoke Alarm in Firex Wiring Harness (6 Pack) – Check Compatibility

Price: $30.99
(as of Oct 20, 2026 13:43:18 UTC – Details)


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.
Quick convert adapter allows the installation of a new Kidde alarm to an existing competitive wiring harness
The smoke alarm adapter also allows the specified approved brands and models to be interconnected with other Kidde product
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 on all AC/DC Kidde smoke and combination alarms.
Customers find the adapter easy to install, taking about 30 minutes, and appreciate its functionality, with one customer noting it works perfectly with older Firex systems. Moreover, the product saves significant time, with one customer completing the whole house installation in 40 minutes. However, customers disagree on the fit, with some reporting it doesn’t work with newer Kidde models. Additionally, opinions vary on compatibility, ease of use, and value for money, with some finding it worth the cost while others consider it expensive.