First Alert BRK SC9120LBL Hardwire AC Smoke and Carbon Monoxide Combination Alarm with 10 Year Sealed Battery Backup
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<b>[Product Information]</b><br>
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<li>Ten year ion smoke and electrochemical carbon monoxide sensor life</li>
<li>Includes 10Yr lithium battery backup with locked drawer to prevent tampering</li>
<li>Intelligent sensing technology helps reduce nuisance alarms</li>
<li>Features single button silence/test and convenient end of life signal when it's time to replace</li>
<li>Meets UL2034 and UL217 standards and backed by 10 year limited warranty</li>
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