AC Smoke/CO Alarm
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<b>[Product Information]</b><br>
<ul>
<li>AC-wire with battery backup</li>
<li>Front-loading battery with unique battery door design</li>
<li>Voice Warning</li>
<li>Tamper resistant</li>
<li>Signaling UL listed</li>
</ul>
</div>
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<img src='http://ecx.images-amazon.com/images/I/41%2BJs4QNjmL.jpg' noproxy></br>