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Adding Wireless Smoke Detectors to your existing Hard Wired Interconnected Smoke Detectors

hard wired smoke detectorsIf you’ve added on to your home, or refinished an existing space, you may need to consider adding wireless smoke detectors to your existing hard wired interconnected smoke detectors. This will set off all your smoke detectors if any of the existing or new units detect smoke.

Adding Wireless Smoke Detectors to your existing Hard Wired Interconnected Smoke Detectors

Before you get started please take a few minutes to change the batteries in your smoke detectors NOW, if it has been more than a year. Go ahead, we’ll wait right here for you to perform this crucial safety step!

First Alert BRK9120b Hardwired Smoke Detectors are a plug and play replacement for many existing smoke detectors, and comes with multiple adapters to fit most, if not all, other types of interconnected hard wired smoke detectors.

hard wired smoke detectors

First Alert BRK9120b Hardwired Smoke Detectors

Perhaps you’ve refinished your basement, or added on to your home. If you didn’t have wiring installed to connect to your existing hard wired smoke detectors you can easily add wireless smoke detectors to your existing hard wired interconnected smoke detectors.

  1. The first step is to shut off the electrical breaker that powers your hard wired smoke detectors!
  2. You can replace one of your hard wired smoke detectors with a First Alert Hardwired Wireless Smoke Alarm model SA521CN-3ST. This unit will act as the bridge connecting your existing hard wired interconnected smoke detectors to your new wireless smoke detectors.
  3. Follow the instructions, included with the new smoke detectors ( First Alert Smoke Detectors with Wireless Interconnect Model SA511CN2-3ST ), to pair or connect them all together. It is easier to do it, before you mount them to the ceiling. Trust me.
  4. Mount the First Alert Smoke Detectors with Wireless Interconnect Model SA511CN2-3ST in their new locations.
  5. Test the new smoke detectors

Now you should have smoke detection in the previous undefended parts of your living space.

Additional Considerations, if your home is more than 10 years old

While you are thinking about this project, consider that smoke detectors have a maximum lifespan of 10 years. Please replace any smoke detectors that are close to 10 years of age or older, and change the batteries yearly.


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