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Version: 2.0.0Built Date: 02/09/2026

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First Alert - SMCO210 Sealed 10-Year-Battery 2-in-1 Smoke and CO Alarm Slim Profile - White
Bestbuy.comBy Bestbuy.com
IN
First Alert

First Alert - SMCO210 Sealed 10-Year-Battery 2-in-1 Smoke and CO Alarm Slim Profile - White

$58.99$62.99Save 6%
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SKU: b8289b03603e26a348ab3680ba5779d5
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About this product

The First Alert® SMCO210 Sealed 10-Year-Battery Combo Smoke and CO Alarm with Slim Profile Design uses our Precision Detection advanced sensing technology to meet the latest industry standards. This 2-in-1 alarm provides convenient protection against both fire and carbon monoxide (CO). The slim-profile combination alarm is half the depth of a standard alarm. It is sleek and compact to help the detector blend seamlessly with most home décor. And the 10-year lithium battery means no battery replacements for a decade – the end-of-life warning lets you know when it is time to replace the alarm. No more low-battery chirps and multiple battery replacements!
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Generated by Contenta AI

First Alert SMCO210 Smoke and CO Alarm

Introducing the First Alert SMCO210, a sleek and efficient 2-in-1 smoke and carbon monoxide alarm designed for peace of mind. With a sealed 10-year battery, you won’t have to worry about changing batteries for a decade! Its slim profile ensures it blends seamlessly into any home decor without taking up much space.

Equipped with advanced sensing technology, it provides reliable alerts for smoke and CO, ensuring your family's safety. Plus, the easy-to-read LED display keeps you informed at a glance. Stay safe and stylish with the First Alert SMCO210!