- Make sure this fits by entering your model number.
- Easily replace hardwired Firex smoke alarms with First Alert or BRK smoke alarms
- Ideal for retrofitting jobs
- 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
First Alert ADF-12 BRK/Firex Smoke Alarm Adapter Plugs take the hassle out of replacing 120-volt hardwired Firex smoke alarms that are outdated or expired.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 Firex detector with a BRK or First Alert alarm. Simply insert the three-pin male connector into your existing Firex 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 Firex 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.