FireAngel CO-9B review
Test score %
The FireAngel CO-9B Carbon Monoxide Alarm will last for seven years before you need to replace it, although you’ll need to change the batteries once or twice during its lifetime. So it may need a touch more maintenance that some other carbon monoxide detectors, but does it reward your efforts with effective carbon monoxide detection? Our safety test results reveal our expert verdict.
- Pros and cons
Technical specifications
Test results
The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.
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