FireAngel CO-9X review
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If you’re looking for a device that needs minimal maintenance, then the FireAngel CO-9X Carbon Monoxide Alarm may well catch your eye. It has a sealed battery, which means you won’t have to replace the batteries during its seven-year lifetime. We’ve tested its detection of killer carbon monoxide in a series of stringent lab tests back in 2016 to see if it pairs convenience with the quick reactions you need to keep you and your family safe in an emergency. Read on for the results of our tests.
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