Digital Display of a Carbon Monoxide Alarm Showing "Lb"
What Does it Mean? "Lb" is the signal for a low battery. The capital L with a lower-case b on your digital display is letting you know the battery is low and needs to be replaced.
Why Is My Carbon Monoxide Alarm Beeping or Chirping?
A carbon monoxide alarm will make beeps or chirps in different patterns to signify different situations. Learn more aboutt these patterns and what they signify.
Why Does My Battery Only Last One Month?
This is usually caused by the absence of AC power to the smoke alarm.
Why Should I Have a Combination Alarm?
Combination alarms save space in your home, and they mean you only need to test and change batteries in one device rather than two.
When Your Carbon Monoxide Alarm Displays a Number with No Alarm
Any time a digital unit displays a number with or without an alert, assume it senses carbon monoxide. Leave the home and call 911.
When and How Do I Replace My Carbon Monoxide or Combination Alarm’s Battery?
Follow our simple steps for carbon monoxide detector battery replacement and learn more about how to properly maintain your CO alarm.