---
product_id: 15893705
title: "BRK ADF-12 BRK Smoke Alarm Adapter Plug for Firex Hardwire Smoke Alarms, White/Black, Pack of 12"
brand: "first alert"
price: "₩63261"
currency: KRW
in_stock: true
reviews_count: 8
url: https://www.desertcart.kr/products/15893705-brk-adf-12-brk-smoke-alarm-adapter-plug-for-firex
store_origin: KR
region: South Korea
---

# No rewiring needed Pack of 12 adapters Universal 3-pin connector BRK ADF-12 BRK Smoke Alarm Adapter Plug for Firex Hardwire Smoke Alarms, White/Black, Pack of 12

**Brand:** first alert
**Price:** ₩63261
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your fire safety—no rewiring, no hassle, just peace of mind!

## Quick Answers

- **What is this?** BRK ADF-12 BRK Smoke Alarm Adapter Plug for Firex Hardwire Smoke Alarms, White/Black, Pack of 12 by first alert
- **How much does it cost?** ₩63261 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/15893705-brk-adf-12-brk-smoke-alarm-adapter-plug-for-firex)

## Best For

- first alert enthusiasts

## Why This Product

- Trusted first alert brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bulk Convenience:** Includes 12 adapter plugs—perfect for whole-home or facility-wide upgrades.
- • **Cost & Time Saver:** Eliminate rewiring costs and downtime with simple plug-and-play installation.
- • **Effortless Retrofit:** Swap outdated Firex alarms with First Alert or BRK models—no electrician required.
- • **Compact & Lightweight:** Slim 3x1x1 inch design fits discreetly behind alarms without bulk.
- • **Universal Compatibility:** Works seamlessly with 10+ Firex, First Alert, and BRK hardwired alarm series.

## Overview

The First Alert BRK ADF-12 Smoke Alarm Adapter Plug pack of 12 enables quick, hassle-free replacement of hardwired Firex smoke alarms with First Alert or BRK models. Designed for retrofitting, these compact adapters use a universal 3-pin connector compatible with multiple alarm series, eliminating the need for rewiring and reducing installation time and costs.

## Description

First Alert ADF-12 BRK/Fire Smoke Alarm Adapter Plugs take the hassle out of replacing 120-volt hardwired Fire smoke alarms that are outdated or expired. Ideal for retrofitting, these convenient smoke alarm adapter plugs eliminate the need for rewiring when replacing an existing Fire detector with a BRK or First Alert alarm. Simply insert the three-pin male connector into your existing Fire ceiling plug, insert the female connector into your First Alert or BRK smoke alarm, and secure the smoke alarm into place. Compatible with a wide range of hardwired First Alert, BRK, and Fire smoke alarms, these adapter plugs can help you save time and installation costs when you're updating the fire safety system of your home or facility. The package includes 12 adapters--enough to install 12 smoke detectors. Package dimensions 1.85 x 8.39 x 5.24 inches, individual unit dimensions are 3 x 1 x 1 inches

## Features

- Easily replace hardwired Firex smoke alarms with First Alert or BRK smoke alarms
- Ideal for retrofitting jobs, Package dimensions 1.85 x 8.39 x 5.24 inches, individual unit dimensions are 3 x 1 x 1 inches
- Compatible with SC9120B, 4120-series, 9120-series, 7010-series, 5919, 2002RAC, SC6120B, HD6135FB, and RM3 First Alert or BRK alarms
- Compatible with 406 (G-6), 4518 (ADC), 4618 (FADC), 484 (PG-40), 4480 (PAD), 5700 (ADH), and 499 Firex alarms
- Includes 12 smoke alarm adapter plugs.Refer to the PDF attached below in Technical Specification for User Manual for compatible models and brands

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | First Alert |
| Style | Hardwired |
| Power Source | Corded Electric |
| Color | White/Black |
| Product Dimensions | 2"D x 5.25"W x 5"H |
| Item Weight | 0.01 Ounces |
| Alarm | Audible |
| Compatible Devices | compatible_devices |
| Global Trade Identification Number | 00029054000040 |
| Material | Plastic |
| Number of Items | 1 |
| Manufacturer | First Alert / BRK Brands, Inc. |
| UPC | 029054000040 |
| Part Number | ADF-12 |
| Item Weight | 0.01 ounces |
| Item model number | ADF-12 |
| Size | Pack of 12 |
| Item Package Quantity | 1 |
| Number Of Pieces | 12 |
| Included Components | 12 adapter plugs |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** First Alert
- **Style:** Hardwired
- **Power Source:** Corded Electric
- **Color:** White/Black
- **Product Dimensions:** 2"D x 5.25"W x 5"H
- **Item Weight:** 0.01 Ounces
- **Alarm:** Audible
- **Compatible Devices:** compatible_devices
- **Global Trade Identification Number:** 00029054000040
- **Material:** Plastic

## Images

![BRK ADF-12 BRK Smoke Alarm Adapter Plug for Firex Hardwire Smoke Alarms, White/Black, Pack of 12 - Image 1](https://m.media-amazon.com/images/I/719xHvWwmLL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked Perfect ~ Safety & Simplicity!
*by G***D on March 27, 2018*

These worked perfect! I replaced our original builder interconnected 18 year old FireX 120-1182 Ionization (Flame) Fire Detectors with BRK/First Alert 7010B (Photoelectric Smoke) Detectors. The thought of rewiring each detector in the ceilings was more than unpleasant since I am still recovering from hip replacement surgery and teetering on a step ladder made me very uneasy. I saw these on Amazon, read numerous reviews (thank you everyone) and decided to try them. They worked great! After replacing all the units, I had the conversion time down to 5 minutes each (Hint:Using an inexpensive power screwdriver definitely helped working overhead!).First: I removed the 9V Eveready Heavy Duty Non-Alkaline batteries that came inside each detector and replaced them with a new 9V Alkaline battery (probably not necessary...just a personal thing), I then 'push tested' each before climbing the ladder to install the new wiring adaptor (why put up a detector that may be a factory dud?).After finishing all the replacements, just to make sure both the 'interconnectivity and the smoke detection alarm really worked in a real life situation', I lit a paper fire in a pail (in a safe non-flammable area), then put it out after it got going strong so it would smoke a lot, then held it about 12" below the detector. GREAT! All our new alarms went off at virtually the same time. So now I'm confident my family is safe in a real life situation and not just relying on a simple 'push' alarm test to hear a beep! Additional Note....I then also installed (6) BRK/First Alert Battery 'Family Gard' Model FG200 Ionization (Flame) Detectors as I felt we should have two different types of detection for safety. I bought three 2-Packs of these @ $10 ($5+- each). Well worth buying and in my own separate 'real life test' with real flames this time, these flame detector alarms worked, though only where a flame was present (they are not interconnected!). Because the Family Gard units are battery powered with no wiring required, I was able to install each in the same time of just a few minutes ~ with a power screwdriver :). Please think about adding additional safety for such a low cost. (Ionization + Photoelectric). Just my own opinion....The installation of the new wiring adaptor was simple 'if you have strong' fingers.The new connector snaps onto the existing FireX 3-pin connector (at least on ours it had to) in order to secure itself and not pull loose. If you can't snap it together, you may be able to use a pair of pliers and slowly & carefully pinch the two connectors together working each side down a little at a time so you don't end up snapping or breaking the existing connector, until they snap together...If you break the existing connector or one of the three small pins, you will have to remove the existing connector and install the new hard-wired connector.The only other issue I ran into was pushing the new connector and additional wiring back up inside our already crowded ceiling box took a few different tries until a decent fit worked.Take your time here, I WOULD RECOMMEND DOING THIS BEFORE ATTACHING THE NEW DETECTOR TO THE NEW WIRE ADAPTORS. It's so much easier to deal with stubborn wiring in a crowded space without also having the new detector dangling below, hanging on the wires. If the new connector doesn't fit easily into the existing ceiling electrical box (it probably won't unless you're lucky), look at the wiring inside the ceiling box & try to find a relatively uncrowded area where the new connector will fit into, once you find or create that area, the new connector & short wiring should be able to be 'gently' pushed inside..don't break wiring connections!. Then go ahead and install the new connector wiring to the Detector. if the wires come out of the ceiling again while doing this, now, since you know how you're going to put everything back into the ceiling box (because of your trial run), just place it all back inside the ceiling exactly where you had it....Having to buy 12 connectors at a time is quite an oversell, if I needed 8,9 or 10, then I would be fine with purchasing (2) 6-packs, but when a home has 6 or less, it really is an oversell. However having said that, I wouldn't hesitate to buy them again knowing now how simple it made the conversion from FireX to First Alert!NOTE: We are Amazon Prime members and I can say we absolutely did not receive any consideration, nor were we asked whatsoever for our comments here. Life is much too important for anyone to play games with. We purchased the wiring adapters from Amazon, but just to be fair to Amazon, we purchased the detectors mentioned above elsewhere. But again, to be fair, if we had not seen a super-sale within a couple of miles from home for these detectors, we would have gladly ordered and depended reliably on Amazon to deliver us these detectors within 2-days and to back us up if something was wrong!

### ⭐⭐⭐⭐⭐ Works perfectly; easy to use; fast delivery
*by K***2 on August 3, 2025*

These work well with old Firex large 3 prong in-line system and First Alert or BRK smoke detectors (or combo detectors). Saved me from needing to hard wire on the new smoke detectors. Why Kidde who has Firex as a brand does not have an adapter for the old Firex to new Firex or Kidde is beyond me (small and large triangle prongs). Thankfully these adapters work with a brand easily obtained (First Alert/BRK) to solve the challenge of changing out old smoke detectors on an older home system. Fast delivery (over night), easy to use and affordable.

### ⭐⭐⭐⭐⭐ Saves time when replacing smoke alarms
*by E***R on June 18, 2025*

This made replacing my old expired smoke alarms with new First Alert alarms an extremely easy and quick project.

## Frequently Bought Together

- First Alert BRK ADF-12 BRK Smoke Alarm Adapter Plug for Firex Hardwire Smoke Alarms, White/Black, Pack of 12
- First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup, 6-Pack
- BRK First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.kr/products/15893705-brk-adf-12-brk-smoke-alarm-adapter-plug-for-firex](https://www.desertcart.kr/products/15893705-brk-adf-12-brk-smoke-alarm-adapter-plug-for-firex)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-21*