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Best CO Alarm with a Display

First Alert 10-Year Battery Carbon Monoxide Alarm with Digital Display, CO710

Domestic Enough ApprovedResearch Pick

Ten-year battery convenience plus a display for people who prefer information over mysterious beeping.

Usually under $45

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At a Glance

Best For

Anyone who wants a long-life battery CO alarm with a visible display.

Skip If

Skip it if you want the lowest-cost basic CO alarm or need smoke detection too.

Usefulness scores

Editorial usefulness scores—not customer ratings.

TIME5/5
MONEY3/5
EFFORT5/5
SPACE4/5
HEADACHE5/5
What do these scores mean?
TIME
How much time the product can save.
MONEY
How good the value is or whether it can help avoid unnecessary spending.
EFFORT
How much household work or friction it reduces.
SPACE
Whether it earns the space it occupies.
HEADACHE
How much annoyance, hassle, or future trouble it can prevent.

Why We Picked It

A 10-year battery carbon monoxide alarm with a digital display and flexible placement.

Pros and Cons

Pros

  • Sealed 10-year battery
  • Digital display
  • No outlet required
  • Flexible placement

Cons

  • Costs more than a basic CO alarm
  • The whole unit is replaced at end of life
  • Does not detect smoke

Cheaper Alternative

Kidde COB AA battery carbon monoxide alarm.

Save Your Money

Keep your current in-date CO alarm if it is correctly placed, working, and tested regularly.

Domestic Enough Take

Research pick. Install only in approved locations and follow the manufacturer's placement instructions.

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How We Evaluated It

Research Pick

We evaluated available product specifications, manufacturer documentation, relevant safety or certification information, compatibility, price, alternatives, and who the product actually makes sense for. We have not personally tested this model.