What model should I choose?
Now that you know how many alarms you need, it is time to figure out what type of alarms would be best for your home.

Mounting options
There are several mounting options available depending on your preferred power supply and location in the home:

• AC plug-in - Plugs into any wall outlet
• Battery - Many mounting options
• AC wire-in - Connects to a hard-wired system

Important safety features
There are several features to consider when selecting CO alarms for the home:

• Accuracy level - Certified by experts
• Battery backup - During power outage
• Tamper resist - Child proofing
• Digital display - Accurate readout
• Peak-level memory - Records levels
• End-of-life warning - Added security
• Voice warning - Helps alert everyone

Combo alarms
These alarms offer protection from CO and other threats such as fire or explosive gas.

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