10-year sealed smoke and carbon monoxide alarm with voice; Powered by sealed 10-year lithium batteries to provide continuous protection for 10 years without battery replacement; Meets UL217 and UL2034 standards and complies with legislative requirements for 10-year battery operated smoke alarms; Photoelectric smoke sensing technology for less nuisance alarms; Eliminates annoying low battery chirps in the middle of the night; New sleek and round design adds an element of style to safety; Single button test/...

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