0ur opinion: :Carbon monoxide (C0) is the leading cause of accidental poisoning deaths in America, yet many people don't know they are suffering from C0 poisoning until its too late. Since symptoms of C0 poisoning are like the flu, you might not even know you're in danger at first. That's why a carbon monoxide alarm is an excellent way to protect your family. lt can detect the C0 you can't see, smell or taste in the air.
The First Alert SC05CN carbon monoxide and smoke alarm uses an electrochemical carbon monoxide sensor-the most accurate technology available. The alarm uses photoelectric smoke sensing technology which is environmentally friendlier and which reduces nuisance alarms, making it ideal for cooking areas. lt is also great for sensing slow smoldering fires quickly. The permanent sensors last the lifetime of the alarm. The test/silence button both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. The 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. 5-year limited warranty. UL listed. Not available for sale in Massachusetts.
--Bree NorlanderWhat's in the Box 0ne combination carbon monoxide and smoke alarm, two AA batteries, and user's manual
Piece Availability: Usually ships in 24 hours
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Testimonials
Average Buyer Rating:

Buyer's feedback: 
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* Nice Product ...
I like the fact that the CO detector/Smoke alarm are combined. I used to have them in the house separately. They work great, easy to install.
Can't beat this price
Buyer's feedback: 
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Great Combo Alarm
I have a kitchen in my law office and it has a gas range in it. So I wanted an alarm that would not only detect smoke but also carbon monoxide (wanted to kill 2 birds with 1 alarm so to speak). This unit has been perfect, was reasonably priced and works fine. Makes me sleep better at night. Would buy again if needed
Buyer's feedback: 
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* great until it failed 2 months later ...
I thought I got a great deal on this combo item, but it only worked for three months before failing. I guess when it comes to my family's safety I shouldn't be so concerned with the best price and just buy an item like this from a local store that I can return it to with no problems.
Buyer's feedback: 
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Great Detector!
This product works! I recommend this product to all!
Buyer's feedback: 
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* Good Combo ...
These were bought to replace others. Never had any problems. Combo preferred over buying two units for smoke and carbon monoxide.