First Alert SA150B Hall & Stairway Smoke & Fire Detector
</br></br>
<div style="text-align:left">
<b>[Product Information]</b><br>
<ul>
<li>Light test feature makes testing easy with a flashlight beam</li>
<li>85 dB alarm</li>
<li>Two 9-volt batteries included</li>
<li>5 year limited warranty</li>
</ul>
</div>
</br></br></br></br></br></br></br></br></br></br>

</br></br></br></br></br></br></br></br></br></br>
<img src='http://ecx.images-amazon.com/images/I/419FXPV0T1L.jpg' noproxy></br>