First Alert SCO501CN-3ST Battery Operated Smoke & Carbon Monoxide Alarm

Last updated date: November 23, 2020

DWYM Score

9.2

First Alert SCO501CN-3ST Battery Operated Smoke & Carbon Monoxide Alarm

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We looked at the top Carbon Monoxide Alarms and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Carbon Monoxide Alarm you should buy.

Editor's Note November 23, 2020:
Checkout The Best Carbon Monoxide Alarm for a detailed review of all the top carbon monoxide alarms.

Overall Take


In our analysis, the First Alert First Alert SCO501CN-3ST Battery Operated Smoke & Carbon Monoxide Alarm placed 5th when we looked at the top 10 products in the category. For the full ranking, see below.

From The Manufacturer

The First Alert SCO501CN 3ST Combination Smoke and Carbon Monoxide Alarm with Voice Location detects both smoke and carbon monoxide in a single device. The alarm interconnects with up to 18 other First Alert enabled alarms in your home to create a wireless safety network. The photoelectric smoke sensor is designed to reduce false alarms from cooking smoke or shower steam while remaining sensitive to real danger. The advanced electrochemical CO sensor detects carbon monoxide leaks from multiple sources, including faulty fuel burning appliances. A loud 85 decibel siren and a voice alarm with 11 programmable locations indicate where and what the threat is. EZ access battery drawer, no need to remove alarm from ceiling to change battery.

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