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First Alert CO710 10-Year CO Alarm with Display vs Kidde COPD Plug-In CO Alarm with Display

Which display alarm should sit near your wood stove?

Both show a CO reading, which is why they suit a stove room. They differ in how they are powered.

First Alert CO710 10-Year CO Alarm with Display

First Alert CO710 10-Year CO Alarm with Display

8.3/10

Wins 2 of 5

Check price

≈ $44

Kidde COPD Plug-In CO Alarm with Display

Kidde COPD Plug-In CO Alarm with Display

8.4/10

Wins 1 of 5

Check price

≈ $44

Output against output

Compared on CO710 10-Year CO Alarm with Display COPD Plug-In CO Alarm with Display
Price read $44 $44
Power Sealed 10-year battery 120V plug-in, 2 AA backup
Display Backlit CO and temperature Backlit CO
Standard named Not on this page UL 2034 5th Edition, ETL
Amazon ratings 4,118 at 4.6 199 at 4.7
Listed on amazon.com Yes Yes

A tick means one listing published something the other did not, or published a better figure. It does not mean the product is better, and the column is not a score out of anything: a maker who says less loses lines here without losing a comparison. The two verdicts below are where the page is settled.

Which of the two, for which room size

Buy the First Alert CO710 10-Year CO Alarm with Display

Choose the CO710 to set it anywhere, without an outlet.

Buy the Kidde COPD Plug-In CO Alarm with Display

Choose the COPD for a named standard and an outlet nearby.

Questions that follow from this pair

Do both work in an outage?

Yes, on their batteries.

Do both show CO levels?

Yes.

Each one, at full length

The price beside each product is fetched as this page opens, and it is the only figure here that is current. Any amount written into the prose was read once, on the day that sentence was written, and nothing has refreshed it since.