Prime Day: First Alert Smoke Detector & Carbon Monoxide Detector Alarm, Battery Operated, SCO5CN $21.82 AC + FS/Prime @ Amazon.com, Exp 07-16-2019

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Prime Day deal: You save an additional 25% on this item at checkout.

First Alert Smoke Detector and Carbon Monoxide Detector Alarm | Battery Operated, SCO5CN

4.3 out of 5 stars (2,081 reviews)

Was: $38.71
Price: $29.09
Prime Day Price: $21.82 (lowest price is $20 but is rare)

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Keep your family safe with this battery operated smoke and carbon monoxide alarm; battery powered alarms provide continuous monitoring of CO levels, even if there’s a power failure
Features an electrochemical Carbon Monoxide sensing technology as well as a photoelectric sensor that detects the larger particles of a smoldering fire
Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85-decibel siren provides a clear, loud warning upon detection
Battery-operated unit installs quickly and easily without an electrician. Low battery signal mute, quiets low battery signal for up to 8 hours
Simple to use, with a single test/silence button; EZ access battery drawer allows you to change battery without removing alarm from ceiling
7-year limited warranty; equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for safety; all First Alert alarms are rigorously tested to meet UL standards
It can ship within the US except New York

Note: the 25% off also works on: Battery Powered with Voice Location ~~$47.92~~ $35.94, but it regularly drops below $30.