First Alert Battery Operated Smoke and Carbon Monoxide Alarm-SCO5CN at The Home Depot
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First Alert

Model # SCO5CN

Battery Operated Smoke and Carbon Monoxide Alarm

First Alert Battery Operated Smoke and Carbon Monoxide Alarm

This item has been discontinued.
The Home Depot no longer carries this specific product.

$29.97 / each
Item cannot be shipped to the following state(s): AK,GU,HI,PR,VI


In Stock



Model # SCO5CN

Internet # 202433891

The First Alert SC05CN Combination Smoke Alarm and Carbon Monoxide Detector helps protect you and your family from two deadly threats: fire and carbon monoxide. Fire is a deadly threat to every household; it can strike anywhere, any time. Carbon monoxide (CO) is a leading cause of accidental poisoning deaths in America, yet many people don't know they are suffering from CO poisoning until its too late. Symptoms of carbon monoxide poisoning are like the flu, and you might not even know you're in danger at first. This dual smoke and carbon monoxide alarm is an excellent way to protect your family. The SCO5CN uses an electrochemical carbon monoxide sensor, the most accurate technology available. The alarm uses photoelectric smoke sensing technology which reduces nuisance alarms, making it ideal for cooking areas. Photoelectric smoke alarms are great for sensing slow smoldering fires quickly. The test/silence button both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. The SCO5CN alarm uses different 85-decibel horns and lights depending on whether it's alerting you to smoke or carbon monoxide. A low battery signal alerts you to replace the battery and end-of-life alarm of three chirps alerts you to replace the unit. Two AA batteries are included. 7-year limited warranty. UL listed.

  • Dual smoke & carbon monoxide detector technology
  • Photoelectric smoke sensing technology
  • Mute button for silencing false alarms
  • EZ access door to replace batteries
  • Low battery signal mute
  • Electrochemical CO detector
  • End of detector life timer
  • 2 AA batteries included
  • Loud 85 dB alarm
  • 7-year limited warranty
  • Meets UL217 & UL2034 standards for combination detectors
  • America's most trusted brand in home safety

Info & Guides

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Alarm Sensor Type  Dual-Sensor  Alarm Type  Smoke 
Alarm/Detector Features  No Additional Features  Assembled Depth (in.)  5 in 
Assembled Height (in.)  2 in  Assembled Width (in.)  5 in 
Battery Back-Up  Yes  Battery Power Type  Alkaline 
Battery Size  AA  Certifications and Listings  1-UL Listed 
Commercial / Residential  Commercial / Residential  Connector/Contact Type  None 
Digital Display  No  Electrical Product Type  Carbon Monoxide Detector 
Included  Batteries  Returnable  90-Day 
Voltage (volts)  1.5 



Most orders process within 3 business days.

Please allow 3 to 5 business days for Standard Shipping in addition to order processing time, which varies by product.  Items deliver by small parcel service.

If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.