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FIRST ALERT

First Alert SCO501CN-3ST Wireless Interconnected Combination Smoke and Carbon Monoxide Alarm with Voice Location, Battery Operated (pack of 1)

    • Based on 4,726 reviews
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Availability: In Stock.
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Arrives Wednesday, Jun 5
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Style: SCO501CN-3ST


Pattern Name: Alarm


Features

  • The front cover design of the alarm may vary but product function remains the same.
  • Battery operated smoke and carbon monoxide alarm can be installed easily
  • Connects multiple alarms together for wireless safety network
  • Voice alarm gives clear indication of where the problem is located
  • Features photoelectric smoke sensor and electrochemical CO sensor
  • One button silences a false alarm and tests the unit. Loud 85 decibel alarm
  • NOTE: Kindly refer to the user manual provided as a PDF manual in the product description section
  • First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)
  • Smoke particles of varying number and size are produced in all fires. For maximum protection, use both ionization and photoelectric sensing technologies. Ionization alarms are generally more sensitive to fast flaming fires and photoelectric alarms are generally more sensitive to smoldering fires

Description

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.

Brand: FIRST ALERT


Style: SCO501CN-3ST


Power Source: Battery Powered


Color: White


Product Dimensions: 2"D x 5"W x 5"H


Item Weight: 0.2 Pounds


Alarm: Audible


Sensor Type: electrochemical,photoelectric


Material: FIRST ALERT SCO501CN-3ST ONELINK Battery-Operated Combination Smoke & Carbon Monoxide Alarm with


Brand: ‎FIRST ALERT


Style: ‎SCO501CN-3ST


Power Source: ‎Battery Powered


Color: ‎White


Product Dimensions: ‎2"D x 5"W x 5"H


Item Weight: ‎0.2 Pounds


Alarm: ‎Audible


Sensor Type: ‎electrochemical,photoelectric


Material: ‎FIRST ALERT SCO501CN-3ST ONELINK Battery-Operated Combination Smoke & Carbon Monoxide Alarm with


Manufacturer: ‎First Alert


Part Number: ‎SCO500


Item Weight: ‎3.2 ounces


Country of Origin: ‎Mexico


Item model number: ‎SCO500


Batteries: ‎2 AA batteries required. (included)


Is Discontinued By Manufacturer: ‎No


Size: ‎1-pack


Pattern: ‎Alarm


Voltage: ‎120 Volts


Item Package Quantity: ‎1


Number Of Pieces: ‎1


Included Components: ‎Smoke detector, batteries


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Alkaline


Warranty Description: ‎7 Year


Date First Available: December 7, 2003


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jun 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Works Great and High Quality Smoke and CO Alarm
Style: SCO500B Pattern Name: Alarm
I purchased two of these after being unhappy with First Alert ZCOMBO made for Ring, which I returned. This model interconnects with other SCO500B models so that if there is an alert in another part of the house, all alarms beep and give a voice alert. These units cannot connect to my Ring Alarm system. That is fine with me as I discuss in my review of the ZCOMBO model. I had no problems at all with setting up these two units and choosing the voice location feature. So far, no false alarms and the units are working fine. I have read the "one star" reviews and people have had false alarms after a period of time. Mine have been up for one week with no problems but if I start getting false alarms, I will update this review. The distance that these interconnect seems good as I have tested these two in different parts of my house. I will probably buy two more for other areas. One thing that I like about this design is that if it detects CO, the alarm goes off and then it speaks the CO level to let you know how much CO has been detected. As I discussed in my other review of the ZCOMBO unit, people should not just assume that getting a CO alarm means that the unit is broken. There are many possible reasons why CO may be in your house and before declaring them defective, it is important to get a professional or the fire department to check your house. If you do an online search of CO in your house you will see that it is possible that a crack can develop in a furnace causing CO to mix with the heated air. Also, gas appliances such as heaters and even gas stoves, if not vented correctly can cause CO to enter a house. If one of these signals a CO alarm, take it very seriously because your life could be at risk. Don't ever assume that the alarm is simply broken until you are absolutely sure it is. I read a review of this item saying that the alarm on these units might not be heard by older people with hearing loss. The alarm on these units is very loud and someone would really have to be very hard of hearing to not hear this. In fact, when setting these up, you should probably wear ear protection because the alarm is very loud. I would recommend that people wear ear plugs even when testing these alarms. When setting these up, it is important to follow the instructions on the enclosed sheet because it is not easy to figure out without instructions. I found that the setup was easy when following the instructions. There are also some reviews here that have setup instructions, which can also be helpful. I consider these the best units that I could find for warning me about fire or CO when I am home. The only problem is that it will not notify me if I am away from home. I have decided that I am also going to buy two Nest Protect Smoke/CO alarms, one for each level of my home and in rooms that do not have this unit, the First Alert SCO500B. It is simply too expensive for me to buy six Nest Protect alarms which would be close to $700. I think that buying four of these units and two Nest Protect units, I can get a good smoke/CO alarm system at a reasonable price. In the future, if I decide that I want to connect these alarms with my Ring Alarm system, I will purchase a Ring Listener which is designed to be installed near and alarm and will send an alert to the Ring alarm monitoring company. I am still worried about connecting my Ring Alarm with smoke/CO detectors. The reason is that if there is any type of alarm sent, even false ones, Ring monitoring will send out the local fire department and they cannot be recalled. In my city, false alarms will get fined at increasing amounts and your alarm license can be banned for too many false alarms. I think that the First Alert SCO500B is a good smoke/CO alarm and I would recommend this model. Realize though that all smoke alarms are now designed to have a seven year life span. So know that in seven years all these units will have to be replaced with new ones. ... show more
Reviewed in the United States on June 17, 2021 by bizperson
    • Great product - just not the one that is advertised!
Style: SCO501CN-3ST Pattern Name: Alarm
Review Image by Nathan Nathan
Review Image by Nathan Nathan
Review Image by Nathan Nathan
So I spent way too many hours trying to figure out what happened. We have several SCO501CN in our home that failed after several years and they worked so well, I wanted to replace each one of them. What we liked was: no false alarms, voice instead of crazy beeps when there is a problem, and interconnected. I ordered five from Amazon (Amazon.com as the seller) and was surprised to get an entirely different model. What was sent was the SCO500 which hardly appears anywhere on the internet. I did find it on First Alert's website however it wasn't clear that it was a voice model, which is what we really liked about the SCO501CN. The packaging also says nothing about voice. There is even a sticker with a bar code that says SCO 501CN on some of them, right below where the packaging clearly indicates that this is the SCO500...so weird. However, I opened one up and low and behold, it was voice, and CO, and smoke and interconnected, exactly what we wanted. It appears that the US has updated their requirements (UL STD 217) for smoke detectors due to the increasing number of lithium battery caused fires, and these models are consistent with this standard. So hopefully the new SCO500 works as well as the SCO501CN and thus far after a few weeks, no false alarms and they all installed easily (and into the same ceiling base as the old ones). Hopefully Amazon will update the listing for this at some point. I was told in November by their customer service that they would however still nothing yet. ... show more
Reviewed in the United States on December 29, 2023 by Nathan Nathan
    • After a real-life event, I now swear by these!
Style: SCO501CN-3ST Pattern Name: Alarm
I've been using these smoke/carbon monoxide detectors for a while now and hoped I'd never need them. Then the unthinkable happened: one day after having some work done on a gas appliance in my house, a carbon monoxide leak started. I called in the fire department, and they brought in their own calibrated meter. After clearing the carbon monoxide and talking to us before leaving the scene, they were impressed with these detectors and had to know what they were. It turns out the voice-activated reading from these detectors was only 1ppm over the reading of their calibrated handheld. For something as mass-produced and inexpensive as these are, that's HIGHLY impressive! Also, everything they tell you about a carbon monoxide leak is true. Had these detectors not went off, there would have been no way we could've known there was an issue. I ended up buying these on a whim, and they saved my family from being affected by carbon monoxide that, according to the fire department, was well over 10 times the lethal limit. If there's a combination CO/smoke detector that gets my endorsement, it's this one. It works perfectly. Buy it and don't think twice. ... show more
Reviewed in the United States on March 26, 2024 by TJ

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