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KiddeK7DCO

Name: Kidde K7DCO
Brand: Kidde
SKU: WH18639-0025-01

£18.50View retailers

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The Kidde K7DCO carbon monoxide (CO) alarm is battery powered and needs two AA disposable or rechargeable batteries, which last around a year. It comes with a screen to show when the battery needs replacing, when the alarm is at the end of its 10-year life and, in the worst cases, the level of CO in the air. To find out how sensitive to CO this alarm is, we put it through a series of tests. Continue reading for our results and review of this Kidde CO alarm.

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Aug 2023Last checked by Which?
Aug 2023First reviewed by Which?
Nov 2012Released

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

How we test carbon monoxide detectors

27 Feb 2024

Carbon monoxide (CO) detection

How we test carbon monoxide (co) detection

Five stars means that the CO alarm detected CO in every one of our tests. One star means that the alarm failed to detect CO in one or more of our CO detection tests. We test each carbon monoxide (CO) alarm more than 30 times to see whether it can detect the deadly gas. We test with low concentrations of CO and higher concentrations. We also test with a catastrophically high concentration of the gas. We check whether the alarms respond in time and whether after detecting CO, they can go on to continue to detect the gas.

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