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  • First Alert SCO5CN Battery Operated Combination Carbon Monoxide/Smoke Alarm
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First Alert SCO5CN Battery Operated Combination Carbon Monoxide/Smoke Alarm

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List Price: $54.99
Price: $29.97 & FREE Shipping on orders over $35. Details
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  • Battery-operated combination carbon monoxide alarm and smoke alarm
  • Uses electrochemical carbon monoxide sensor--the most accurate technology available
  • Photoelectric sensing technology reduces nuisance smoke alarms
  • Simple to use silence/test button; low battery warning; unique horn sounds and light
  • Includes 2 AA batteries; 5 year limited warranty
See more product details
38 new from $29.97 3 used from $20.93

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$29.97 & FREE Shipping on orders over $35. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

First Alert SCO5CN Battery Operated Combination Carbon Monoxide/Smoke Alarm + First Alert SA303CN3 Battery Powered Smoke Alarm with Silence Button + First Alert SA710CN Smoke Alarm with Photoelectric Sensor
Price for all three: $51.25

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Product Description

Amazon.com

Carbon monoxide (CO) is the leading cause of accidental poisoning deaths in America, yet many people don't know they are suffering from CO poisoning until its too late. Since symptoms of CO 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. It can detect the CO you can't see, smell or taste in the air.

The First Alert SCO5CN 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. It 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 Norlander

What's in the Box
One combination carbon monoxide and smoke alarm, two AA batteries, and user's manual


Product Information

Technical Details
Part Number SCO5CN
Item Weight5.6 ounces
Product Dimensions6.6 x 10 x 10 inches
Item model numberSCO5CN
Size1 Pack
ColorOne Color
Power Sourcebattery-powered
Item Package Quantity1
Warranty Description» 7-Years Limited Warranty
  
Technical Specification
Additional Information
ASINB000MXJ498
Best Sellers Rank #467 in Home Improvement (See top 100)
Shipping Weight5.6 ounces (View shipping rates and policies)
ShippingThis item is also available for shipping to select countries outside the U.S.
Date First AvailableSeptember 14, 2004
  
Warranty & Support

Product Warranty: For warranty information about this product, please Click here [PDF]
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From the Manufacturer

Smoke & Carbon Monoxide

This 2-in-1 combination smoke detector provides protection against both smoke and carbon monoxide. Combining the best of both for your safety, this fire alarm has both a photoelectric smoke sensor for fire and smoke, as well as a sensor for carbon monoxide.

Fewer False Alarms

This alarm uses photoelectric smoke sensing technology that detects smoke particles most commonly produced by smoldering fires. Photoelectric technology also helps to minimize nuisance alarms that often come from cooking smoke or shower steam.

Battery Powered

2AA batteries included. This alarm also comes equipped with an EZ access battery door that removes the hassle and burden of collecting your alarm from the ceiling and replacing its batteries

Test/Silence

This alarm comes equipped with a mute button that serves the dual purpose of quickly silencing your alarm as well as testing its function.


Customer Questions & Answers

Customer Reviews

They work great, easy to install.
P. MCGEE
Within 2 months of installing the alarm began intermittently emitting the "3 chirps" alarm, which means that the unit is bad and must be replaced.
B
They are not the cheapest you can get but the peace of mind they give is worth so much more.
Amazon Customer

Most Helpful Customer Reviews

199 of 208 people found the following review helpful By K. Stuckey VINE VOICE on December 5, 2008
I spent a good amount of time in the fire safety aisle of a local store, reading packages and comparing units before selecting this particular one to replace an aging smoke-only alarm. This one has two different-sounding alarms (3 beeps for fire and 4 beeps for carbon monoxide) and runs on 2-AA batteries. The batteries can be replaced without taking the unit off the ceiling and the compartment won't close without batteries in it. I installed it by myself in just a couple of minutes with a pencil, drill, hammer and flathead screwdriver. It has several features I chose not to use, most involve locking systems to prevent tampering, but it is nice that they are offered. Also has a photoelectric sensor claiming to prevent false alarms from food smoke and shower steam. I think it's a great value for my family's safety.

**(12/20/08)**I would like to amend my review. A week after installing, the alarm started "chirping" 3 times at irregular intervals (once at 4:00am Sunday, then Tuesday at 1:30pm). I changed the batteries after a third incident (again in the early morning) and it was fine for another four days. The next time I took it down and noticed the back indicates the 3 "chirps" is to replace the alarm. I have had the thing less than a month and have to replace it already?!?!? What a CROCK!

**(12/22/08)**I called and spoke to a rep from First Alert on the phone who explained to me the unit runs a self-test every 90 seconds and if it fails, the alarm 'chirps'. He asked me a few questions and promised me a new unit in a week to ten days.

**(1/14/09)** I received a new unit in the mail today, hard to install with my fingers crossed.

**(3/3/09)**Another malfunctioning alarm, at five o'clock in the morning. I am through with this junk!! Buy only if you want to replace every 4-6 weeks.
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45 of 45 people found the following review helpful By J. Headley on January 10, 2010
Verified Purchase
I bought two of these last year. Within a few months, we started getting false alarms. Three chirps in a row. Sometimes they would stop on their own. Other times, I would have to take them down, take out the batteries, and hang it up again later.

Each time, I tested the batteries. Each time, they were fine. I ever replaced the batteries a couple of times, just to be sure.

Don't buy these. They'll drive you to drink.
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66 of 72 people found the following review helpful By CAPT on February 23, 2008
I needed to replace a couple very old smoke detectors and decided to upgrade to a smoke and carbon dioxide detector. One of the problems with old smoke detectors is they use 9volt batteries which also are difficult to replace as well as expensive. This new First Alert dual smoke and carbon dioxide detector uses 2 AA batteries and has a separate battery compartment which allows you to replace the battery without taking the detector off the ceiling. Cheaper batteries and much easier to replace them. The cost at Amazon was only $30 and nicely cheaper than anywhere. All-around good service from Amazon. Very satisfied customer here.
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30 of 31 people found the following review helpful By Petey on June 17, 2009
Bought and installed one of these in my upstairs hallway.

Within 3 months of installation, the alarm began intermittently emitting the "3 rapid chirps" alarm, which means that the entire unit is bad and must be replaced. Extremely unreliable!
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27 of 28 people found the following review helpful By Byron W. Campen on June 10, 2010
Verified Purchase
Like many other reviewers, the four that I bought are having intermittent spells of the dreaded "three chirps". Not sure what brings it on, but it seems to invariably happen in the middle of the night. Extremely annoying.
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47 of 53 people found the following review helpful By Ryan C. Feldmann on November 29, 2009
Verified Purchase
I have rental properties and I decided to upgrade all units to have monoxide detectors. I decided on this unit because it is a two in one device and it used double AA batteries instead of the nine volts. My tenants keep complaining that these devices keep beeping. I looked on the back and 3 chirps = bad detector. I took a few of them down, put up the old ones and brought them to my home. They have not chirped since. Something about the other place is making these detectors fail.

Another thing is that I did not notice this but there is a 5 year life on these detectors and then they will chirp without any choice but to replace them. So even if yours works at first, you only will get 5 years out of it. I bought a total of 7 of these that cost me a few hundred and now I need to look for replacements. I wish I left all the old smoke detectors in.
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19 of 19 people found the following review helpful By T. Scheel on May 19, 2010
One month in place and have same 3 chirp problem. Company sending replacement, but now I expect problem to recur. Very disappointed because I bought 2 devices based on Consumer Reports recommendation for effectiveness. My model is SC501CN. Bought 4 smoke detectors too (SA302CN) and think one or two has same chirp problem.
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19 of 19 people found the following review helpful By B on January 13, 2010
Verified Purchase
Within 2 months of installing the alarm began intermittently emitting the "3 chirps" alarm, which means that the unit is bad and must be replaced. Very annoying and a waste!
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Most Recent Customer Reviews

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First Alert SCO5CN Battery Operated Combination Carbon Monoxide/Smoke Alarm
This item: First Alert SCO5CN Battery Operated Combination Carbon Monoxide/Smoke Alarm
Price: $54.99 $29.97
Ships from and sold by Amazon.com