FireAngel W2-CO-10XQ review
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Offering a market-leading 10-year lifetime, the FireAngel W2-CO-10XQ promises a full decade of service before you need to replace it. Does it pair this long life with a first-class ability to detect poisonous gas? To find out we put this carbon monoxide alarm through a full range of safety tests, assessing everything from the clarity of its alarm sound to how sensitive it is to four different levels of carbon monoxide.
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The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.
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