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First Alert 10-Year Battery-Operated Combination Smoke and Carbon Monoxide Detector with Voice Alert

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3-volt lithium power cell means you never have to change the battery for the life of the alarm
Half the depth of standard alarms; helps add an element of style to safety
Patented smoke entry system and photoelectric sensing technology leads to fewer false smoke alarms

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3-volt lithium power cell means you never have to change the battery for the life of the alarm
Half the depth of standard alarms; helps add an element of style to safety
Patented smoke entry system and photoelectric sensing technology leads to fewer false smoke alarms
Exclusive voice warning with programmable location tells you the location of the sounding alarm and the danger detected to plan your best escape route
Peak level memory indicates previous level of carbon monoxide detected
Simple installation on wall or ceiling with easy slide mounting bracket
Single button test/silence helps to ensure your alarm is working properly
10-year limited warranty