Think of it as 24/7 support! We've gathered answers to the most commonly asked questions, plus basic troubleshooting for the most common installation, product use and maintenance issues we hear from the field.





Can I Interconnect Smoke Alarms and Carbon Monoxide (CO) Alarms?

How Do I Install Hardwired BRK Alarms?

How long and what is the warranty on my BRK/First Alert product?

How long do CO and CO/Smoke combo alarms last?

How many smoke alarms can be interconnected?

How to Choose a Smoke Alarm

Recommended locations for Smoke Alarms

What are the locations to avoid for smoke alarms?

What is the difference between Photoelectric and Ionization smoke alarms?

What Levels of CO Cause an Alarm?

Why can't I use rechargeable batteries?

Why can smoke alarms go into alarm when no smoke is present?

Why do I hear the low battery "chirp" if the battery is new?

Why do smoke alarms chirp intermittently?

Why does the alarm sound when I install a battery or turn on the AC power?

Why does the National Fire Protection Association (NFPA) recommend that home smoke alarms be replaced after 10 years?

Why won't a smoke alarm sound when I push the test button?


How can First Alert® OneLink® alarms be relevant for Electrical Contractors who have existing home additions projects?

How can Property Owners and Facility Managers benefit from installing First Alert® OneLink® alarms?

How do I program and link OneLink Wireless alarms?

How do I use Fire Spray?

How do the First Alert® OneLink® alarms communicate with each other?

How do the First Alert® OneLink® alarms link with each other?

How does Fire Spray’s agent compare to a dry chemical fire extinguisher’s agent?

How easy is the agent in Fire Spray to clean up?

How long will the batteries last on First Alert® OneLink® alarms?

How many First Alert® OneLink® alarms can be interconnected together?

Once I use Fire Spray can I use it again?

What are my options for a 10-year smoke alarm?

What are the shipping requirements for Fire Spray?

What do the A B C ratings mean on Fire Extinguishers?

What is a “Mesh Network” and how does it work?

What is the operating and storage temperature requirements of Fire Spray?

What is the shelf life of Fire Spray?

What is the Spread Spectrum Horn Tone?

What is Voice Warning with Location?

What other features do the First Alert® OneLink® alarms have?

What replacement batteries can I use?

What types of fires does Fire Spray extinguish?

Will Fire Spray meet requirements for a compliance 2.5lb. fire extinguisher in multi-family dwellings?



I lost my User's Manual. How can I get a new one?