How do I know which smoke and CO alarm to choose for my home?

Choose a carbon monoxide alarm listed with a testing laboratory, meaning it has met specific standards for protection. Whether you select a unit that requires yearly changing of batteries or one you change at the end of the 10 years, either will provide you with protection.

CO alarms also have a battery backup. For the best protection, use combination smoke and carbon monoxide alarms that are interconnected throughout the home. These can be installed by a qualified electrician so that when one sounds, they all sound. This ensures you can hear the alarm no matter where you are in your home.

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1. What’s the difference between smoke alarms and carbon monoxide (CO) alarms? Why do I need both?
2. How do I know which smoke and CO alarm to choose for my home?