Ei208 Battery CO Alarm Designed with built-in AudioLINK+ technology, the Ei208 Carbon Monoxide (CO) Alarm is a standalone battery unit and detects early signs of Carbon Monoxide in your household. Battery powered by a sealed lithium battery with a 10-year lifespan Built-in AudioLINK+ data extraction technology Easy to fit twist on base and multi-fixings Pre-alarm LED indication gives early warning of CO
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