FireAngel CO-9B review
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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. It may need a touch more maintenance than some other carbon monoxide detectors, but does it reward your efforts with effective carbon monoxide detection? We tested it back in 2016, so read on for our test results.What's included:
- Pros and cons
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