7-Year Switch

How long do CO alarms last?

BRK alarms are manufactured with electrochemical sensors-the most accurate and reliable technology available.

BRK CO Alarms last up to 7-10 years.

It is important to replace CO alarms when they reach the end of sensor life.

This is the year millions of CO alarms will reach their end of life.

Signs It’s Time to Replace

Alarm Chirps

Alarm “chirps” 5 times with 5 Green LED flashes once per minute.

Chirps will not stop even if battery is replaced.

Signs It’s Time to Replace

Check the date code

Check the back of the alarm for the manufactured date. If the date is coded 2011 or earlier, the alarm may need to be replaced.