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

First Alert Wireless Interconnect Talking Battery Operated Smoke & CO Alarm

First Alert's series of Wireless Talking Battery Operated Smoke & CO Alarms effectively eliminates the need for a wired connection and operates entirely on batteries. The latest advancement in a series celebrated for its intuitive use of technology, the First Alert Wireless Interconnect collection offers an abundance of options when it comes to creating the ideal safety network. Wirelessly inter-connectivity allows you to connect up to 16 alarms within your home! Voice can easily be programmed for alarm's location within your home. (this feature comes with 11 pre-programmed choices) Voice also notifies which hazard is being detected. If the alarm set in your kitchen senses smoke, all of your First Alert Wireless Interconnect alarms will announce: 'Warning, evacuate! Smoke in the Kitchen!' This feature allows for the maximum in whole home protection.

First Alert Wireless Interconnect Talking Battery Operated Smoke & CO Alarms utilize an Electrochemical Sensor that allows for optimal efficiency in detecting carbon monoxide. The realization of Photoelectric Smoke Sensing Technology will effectively reduce the number of nuisance alarms triggered by cooking smoke and shower steam. This alarm comes equipped with a Mute Button that serves the dual purpose of quickly silencing your alarm as well as testing its function. The combination of an End of Life Timer and an increased emphasis on the unit's 85db sound output establishes peace of mind, while the inclusion of Dual Smoke and Carbon Monoxide Sensing all but guarantees the safest of experiences. This alarm carries a 7 year limited warranty and complies with UL217 and UL2034 Standards.

This Wireless Interconnect alarm is for you if:

You want to build a safety network of interconnected alarms in your home without the cost and hassle of wiring.
You want the earliest notification of where the danger is in your home.

Where To Place Smoke Alarms:

One in every bedroom, and at least one on every level of the home.

Where To Place Carbon Monoxide Alarms:

One on every level of the home and one in each sleeping area

The First Alert Wireless Interconnect Talking Battery Operated Smoke & Carbon Monoxide Alarm, SCO501CN-3ST can be preprogrammed with the following locations:

Basement
Kitchen
Child’s Bedroom
Living Room
Dining Room
Master Bedroom
Family Room
No Location
Guest Bedroom
Office
Hallway
Utility Room

This product is intended for non-professional do it yourself installation. If you would like information about a professionally installed and monitored system, please contact First Alert Professional at 1-800-921-6025. First Alert Professional is not affiliated with BRK Brands, Inc.

First Alert Wireless Interconnect Talking Battery Operated Smoke & CO Alarm Features:

Wireless interconnectivity, wirelessly connect up to 16 First Alert Wireless Interconnect alarms in your home.

Talking alarm, actual voice speaks the type and location of danger in your home, when easily programmed.

Dual smoke & co sensing, ultimate protection from two deadly dangers.

Photoelectric smoke sensing, optimal protection from smoldering fires.

Eco-friendly, completely recyclable as an electronic device.

Mute button, mutes unnecessary alarms immediately. also tests alarm function with same button.

EZ access battery drawer, no need to remove alarm from ceiling to change battery.

Low battery signal mute, quiets low battery signal for up to 8 hours.

Electrochemical sensor, most accurate technology available for detecting carbon monoxide.

End of life timer, alarm chirps when it is time to replace it.

2 AA batteries included.

Loud 85db alarm.

7-year limited warranty, carbon monoxide alarms should be replaced every 5 years for maximum protection.

Meets UL217 & UL2034 standards.

FCC compliant.

Product Specs

UPC:

029054002457

MPN:

SCO501CN-3ST

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Average Customer Rating Based on 65 reviews:

Review - 05/14/2018
Reviewer: Clifford Dyer
Worked fine after installation.

Feel Super Safe - 03/25/2018
Reviewer: Tamara Allen
I received this product for free through Smiley360 to review and I love It! It was super easy to install and I'm horrible at that sort of thing. Mainly I love the security of knowing that if there is a fire in the house the detector closest to it will tell the one in my bedroom to inform me of it and its location. I just recently had a daughter so this makes me more secure knowing that First Alert has our backs. I have almost died from a carbon monoxide leak before. I was lucky that my mom paid me a visit at the right time cause me and my animals were already asleep. Plus I'm one of those people that could burn water. I literally forgot I was boiling water until the alarm went off cause the pot was burning up. I'm so thrilled Smiley 360 and First Alert teamed up to give me this opportunity to try something new and protect my family.

Very Pleased - 03/15/2018
Reviewer: Walter Applegate
Smoke and smoke/CO detectors were delivered quickly and easy to install. Programming them was also straightforward. They worked as advertised. Very pleased and would purchase from First Alert again!

Labor Efficient - 01/05/2018
Reviewer: William Rogers
This product is easy to set up and install. It communicates well with the others in the system. The product is very audible and will alarm you immediately.

- 12/26/2017
Reviewer: Linda Shaffer
fast shipping like the combo unit programmed to talk had a little trouble understanding how to program location

completely satisfied - 09/22/2017
Reviewer: william groppe
One of six alarms malfunctioned and I ordered a replacement. Arrived promptly and installed. All working well. Very pleased with order process and product.

Best CO Detector - 09/09/2017
Reviewer: Gerald Scheiber
This is the best rated Carbon Monoxide detector that rated the highest over all others. I love its ability for wireless communication with other First Alert wireless alarms. And when one detects an issue, all respond with a warning and its location.

My Alarms - 08/16/2017
Reviewer: Ralph Borriello
I have three wireless First Alert alarms in my home for full coverage to alarm us in case of Carbon monoxide or Fire that might happen unnoticed without them. Thank you First Alert.

Not yet installed but looks good! - 07/24/2017
Reviewer: Cleveland Laird
Not yet installed but looks good!

- 07/11/2017
Reviewer: Frank Cowles
We like your product and use the wireless on remodel houses that would be hard to hard wire.

Smoke&Carbon Monoxide Alarm SC0501CN-3ST - 05/16/2017
Reviewer: Alicia Daniel
We love your product! Highly recommend!

Review for SCO501CN-3ST Smoke/Carbon Alarm - 04/07/2017
Reviewer: Alicia Daniel
I love your smoke and carbon Alarms! They have never let us down! Very satisfied. Happy w Customer Service Also!

Top Rate - 01/31/2017
Reviewer: Andrew Rezin
Timely delivery on a great product. Unlike some of the other online vendors, the product they delivered was factory fresh 1/17, not old stock. Kudos.

The old work with the newer - 01/02/2017
Reviewer: Ronald Hughes
No problem installing after I determined which unit was the #1. Love buying USA products.

Smoke-CO - 01/01/2017
Reviewer: brad christensen
Have used this smoke-CO combo in the past. Great alternative to direct wire.

Used this over 10 times now - 12/16/2016
Reviewer: Charles Hinton
Works everytime

Easy to setup, piece of mind - 11/12/2016
Reviewer: stephen flood
These alarms are excellent. We wanted interconnected alarms for each level of the house but did not want to go through the hassle of hiring an electrician and wiring them together. Setting up these alarms to sync was very easy, all three were in place in about ten minutes. When the basement alarm goes off, the upstairs hallway alarm alerts us when we would not have been able to hear it. Great product!

- 10/14/2016
Reviewer: Joe Moehlenhoff
Great Product

Installation - 10/04/2016
Reviewer: Mike Monteith
Went up very easy and a snap to program. Highly recommend

- 08/18/2016
Reviewer: Thomas DesMarais
I like ordering through the first alert store. It is very easy and if I have questions, the tech staff is very helpful. The products have been satisfying for me as well as my customers.

New Wireless Smoke & CO Detectors. - 08/15/2016
Reviewer: William Dyson
Purchased three units . I found them easy to install and program. They work as stated. This should improve the detection and warning system for a three floors of our house. Was surprised to read that one shouldn't be installed in kitchen. However I followed instructions about positioning the detectors.

Excellent choice for battery powered smoke & carbon monoxide detectors!!! - 05/09/2016
Reviewer: Anthony Sestito
These smoke & carbon monoxide detectors work great. Simple to install and setup and the wireless interconnect feature is great. I love the fact that if there is smoke in my basement, all the alarms will start to beep and talk as well so if I am sleeping up on my 3rd floor Bedroom, the detector in my 3rd floor hallway will go off too letting me know what the issue is and where

Always Works perfect - 04/25/2016
Reviewer: Charles Hinton
Always Works perfect

Wireless and talking - 04/01/2016
Reviewer: Donald Achelpohl
Connects very easily and tells one where in the house the alarm is coming from and whether it is a smoke/fire or carbon monoxide. I use a mix in my split level house. The ones that also monitor carbon monoxide have a limited life five or six years but it is our belief that this is important in the garage, utility room furnace and hot water heater. I have at least one on each level of the house and also on bedrooms and areas close to the utility room. Very easy to connect. Easy to replace carbon monoxide alarms when they chirp to notify one that they have reached their time limit.

Simple solution - 03/30/2016
Reviewer: Charles Hinton
Works perfect every time I use them

Alarms - 02/18/2016
Reviewer: David Panicucci
Nice. Love that they are interconnected with all the others I purchased.

Easy to Install & Program - 02/04/2016
Reviewer: David deWolfe
Installed, programmed & tested a network of four detectors in less than two hours. No problem whatsoever. When programming, place a sticky note on each unit and indicate its intended location. Programming is much easier before the unit is actually attached to the ceiling.

Works everytime - 01/21/2016
Reviewer: Charles Hinton
I have purchased many of these and they always work. Easy to program.

great investment - 10/21/2015
Reviewer: Dale Hanke
So simple to set up. Used special tape instead of the screws to put on wall. May order a 2nd one now too.

One Link all alert - 03/09/2015
Reviewer: Gerard Cacciatore
This is the best since wired smoke detectors. Installation was a breeze and the alarms are very audible. For our application, having a finished basement, this is exactly what we need for peace of mind

- 03/03/2015
Reviewer: MARK RICHMOND
Product worked well in resolving our needs.

- 07/13/2014
Reviewer: Patricia Shewmake
Great

Carbon Monoxide Units - 06/21/2014
Reviewer: Michael Gridley
Work well, linked OK

Meets New City rental alarm requirements - 03/07/2014
Reviewer: jon boucher
Due to fire last year our town council has made it mandatory to have all smoke/fire and co alarms be interconnected. I own a couple older homes and the cost of wired interconnection would be large and distructive. I purchased 5 units for one home am very pleased with the units. I would only suggest that a YouTube video be posted for programming . The instructions were a bit unclear. Once I found a post done by a fire fighter to was so clear.

Talking Smoke Alarm - 02/17/2014
Reviewer: Lawyer Durr
3 First Alert Smoke And Carbon Monoxide Alarm With Voice

Great Product - 02/01/2014
Reviewer: Ken Deja
No issues with them. Like the fact that they are connected and talk to each other.

Wireless Talking CO/Smoke Alarm - 01/08/2014
Reviewer: Bernard Cattrell
As a fire safety professional I like the features of this product. Easy to install in any portion of the home, identify that location on the device and have multiple devices connected to each other so which when activated they all sound throughout the home. I have placed them in my home, a rental that a son was using in college and in my mother-in-laws home.

Extremely sensitive - 12/24/2013
Reviewer: Darius Washington
I recently purchased my home and these were already installed. The previous owner informed us that taking a shower sets it off so everyday, I have to take the battery out of the main component because it does go off. Apparently air freshener sets it off too. Anytime I spray apple cinnamon scent spray in the bathroom, there goes the alarm. My ceilings are at least 9 feet high and the bathroom window is always open when it goes off. I dont know if I just have a faulty device but its upsetting me more than it makes me feel safe.

Great idea! - 09/11/2013
Reviewer: John Cooper
After having one of our 6 older smoke alarms faulting and not easily being able to tell which one at 2am, these are a great idea. We have one upstairs in the hallway and the other downstairs in the family room.

- 09/11/2013
Reviewer: Homer Lum
have had great results easy to set up and use.

2nd One-Link - 07/29/2013
Reviewer: Jane Williams
The second One Link received 7/19/13 was connected on 7/28/13. It operates well and links with the One Link I received on 7/15/13.

2nd Time Around - 07/23/2013
Reviewer: Jane Williams
This is the second time I have purchased First Alert OneLink Wireless talking Batteries. The purchase for hallway was 8 years old and the second in the bedroom was 5 years old. I first purchased these batteries from Home Depot, who no longer carry 1st Alert, so I purchased this 2nd set Online. I am very appreciative of the help I received over the phone when attempting to program my alarms. I like your product.

2nd Time Around - 07/23/2013
Reviewer: Jane Williams
I am very pleased with First Alert One Link, this is the second set of the battery operating systems that I have purchased. The one in the hallway was 8 yrs old, and the one in the bedroom was 5 years old.I have appreciated the assistance that I received when I had difficulty programming the systems.The first set I bought in Home Depot, which no longer carries the product but I was so pleased with the product that I went online to purchase my second set. Thank you.

- 07/18/2013
Reviewer: Robert Snow
The onelink wireless talking smoke and carbon monoxide alarms were easy to configure and install, although one out of the six that I bought failed within two days and will need to go back for replacement.

wireless combination - 03/04/2013
Reviewer: MARK HARTMAN
I like the product because it allows us a UL solution to battery / interconnected alarms and this will add some functionality

- 12/25/2012
Reviewer: Richard Guarneri
Very good already had them just renewed them with new ones great store will do business with again

Three OneLink Detectors - 11/12/2012
Reviewer: Richard Bauer
These units are great. Work well in a two story house with basement.

One link combo units - 10/05/2012
Reviewer: Howard Barshop
These units are great. Easy to install and connect to each other. However the prices have been cranked up alot in the past 6 months or so. Why?

Love them - 08/09/2012
Reviewer: Bill Weed
The alarm itself is very loud and the talking part is good also,Love the idea to Link all units together

- 03/06/2012
Reviewer: Ernest Morgan
Very nice detectors. I would like to see a hardwire master, and all slaves to have 5 year battery in them and this would satisfy code conditions.

- 02/26/2012
Reviewer: DAN BONYAI
very timely delivery! all in working order. Good price

Most likely saved our lives - 12/12/2011
Reviewer: LD
This small device most likely saved our lives. While working on a new but faulty furnace, a repair man cracked it without realizing he had done so. As we have one of these units on each floor, the one in the basement alarmed first resulting in a very frightening but very clear message indicating an emergency and need to evacuate. We all managed to get out safely and the fire department arrived very quickly. They confirmed the issue and the furnace was replaced. I cant emphasize enough how important it is to have these installed and functional throughout your house. I dread to think what would have happened if we hadnt.....

very easy to use - 12/07/2011
Reviewer: Jerry Cheney
I installed 9 in a house for an elderly couple and they seemed to link up well

Peace of mind - 12/07/2011
Reviewer: David Rivera
Updated my smoke alarm to this dual function alarm. Installation was a breeze, the alarm was installed and working in a matter of minutes.

- 11/29/2011
Reviewer: Richard Carr
much cheaper than running wires in a finished house

- 11/22/2011
Reviewer: Thomas Puglisi
Time will tell if the alarm is the right sensitivity for my house. The push and hold test button directions during programing for location should audibly tell you how long to hold, so that you dont hold it too long. A beep or voice command should let you know the unit is going on to the next step.

Onelink - 11/22/2011
Reviewer: John Braccili
Product arrived in perfect condition and in a timely fashion. Install was a little more involved than I thought, but I got through it.

- 11/22/2011
Reviewer: William Mitchell
So far it has worked as expected.

4 each onelink-Review - 11/09/2011
Reviewer: Kerwin Styer
Icompleted the review the other day and you dumped it, said your system was down. I am not writing a review twice.

- 11/01/2011
Reviewer: Merrietta Foringer
I was very pleased with the product. I purchased these alarms for my parents home and they both wear hearing aids except of course at night. These alarms are very loud and they can both hear them clearly w/o the hearing aids.

- 10/18/2011
Reviewer: Devesh Thakker
It is very good interconnect alaram without running wire

Onelink Talking CO/Smoke Alarm - 10/10/2011
Reviewer: David Webber
Units function as advertised but I found dead areas in my house where they would not communicate. I had to move one of my units closer before it communicated with the others. The pre-recorded scripts that identify the location of the alarms are limited and do not accommodate a place with 4 to 5 bedrooms. Also, the alarms do not synchronize. For example the units switch between a voice and an audible alarm and one unit might be in the voice mode while the others might be in an audible mode.

- 09/09/2011
Reviewer: Alan Bregar
I like how loud it sounds. I have one of your older ones upstairs that I dont think it is that loud as the new one. I have always bought your brand for this pupose.

- 04/21/2011
Reviewer: Robert Martin
very easy to install and set up

- 04/11/2011
Reviewer: Patrick Demery
Difficult to open to instal batteries

Read All Reviews

Q: What is a mesh network and how do the First Alert Wireless Interconnect smoke detectors intercommunicate?

A: First Alert Wireless Interconnect smoke alarms operate on a "mesh network" to integrate smoke alarms for better safety and response in an emergency. All of the First Alert Wireless Interconnect alarms send, receive and resend the initiating alarm's signal. Why is this important? Let's say the signal is blocked from reaching the master bedroom alarm either by distance or some obstruction in the home. With First Alert Wireless Interconnect, the mesh network of alarms re-routes and re-sends the signal via the other alarms, providing a greater chance all alarms will receive the signal. The "mesh network" is a more reliable means of wireless communication.

Q: How often do you need to change the batteries?

A: Actual battery service life depends on the particular design of your smoke or carbon monoxide alarm and the environment in which it is installed. All kinds of alarm batteries specified in the user's manual are acceptable replacement batteries. Regardless of the manufacturer's suggested battery life, you MUST replace the batteries immediately once the unit starts "chirping" (the "low battery warning"). It is recommended that you change the batteries in your alarms when you change your clocks for daylight saving time. Also consider replacing your current alarms with 10-Year Life alarms that never require a costly battery replacement for the ten year life of the alarm. This 10-Year series is available in smoke, carbon monoxide and combination alarms.

Q: What is the proper placement of smoke alarms?

A: It is important that you have the proper placement for your smoke alarms. Install your alarms at least 20 feet from appliances like furnaces and ovens, which produce combustion particles. Alarms should be at least 10 feet from high humidity areas like showers and laundry rooms, and at least 3 feet from heat/AC vents. Be sure to install a smoke alarm in each bedroom, one at the top of each stairwell, and one on every level.

Q: My smoke alarm keeps chirping and beeping. Why does my smoke alarm chirp intermittently?

A: It is likely that the reason your smoke alarm keeps chirping and beeping is that the battery is low. Whenever your smoke alarm keeps chirping, replace the battery immediately.

Other reasons include: It could be a different device or appliance such as a security system, monitor, carbon monoxide alarm, or other device which has a similar low battery or alert signal. Some of the same factors that cause unwanted alarms can cause intermittent alarms: dust and insects in the alarm or power interruptions in hardwired alarms. Improper wiring on AC or AC/DC smoke alarms. AC alarms will chirp every 5 seconds if the interconnect wire is grounded. The orange interconnect wire should NEVER be grounded; it should only be used to interconnect other smoke alarms or compatible devices.

Q: Why doesn't my smoke alarm sound when I push the test button?

A: It is important that you frequently test your smoke alarms. When you are testing your smoke alarm, there are a number of reasons why the alarm might not sound:

You may not be holding the test button down long enough. Try holding it down for up to 10 seconds (20 seconds on photoelectric models) .
Your battery may not be installed properly or snapped all the way in place. Even if the alarm sounded briefly when the battery touched the terminals, you still need to make sure it is snapped securely in place. If the battery is loose, in cannot power the smoke alarm properly. After installing new batteries, be sure to test your smoke detector.
Your AC power may not be on. AC and AC/DC units will have a power indicator light (red or green) that shines continuously when they are receiving electrical power.
If you have a 10-Year model, the smoke alarm may not have been properly activated. If the tab broke away before the alarm was activated, you can use a toothpick to move the switch over to test the alarm.

Q: Why does my smoke alarm go off when I install a battery or turn on the AC power?

A: It is normal for smoke alarms to go off and sound briefly (up to 5-10 seconds) when you install a new battery or when they are powered up. If the alarm continues to go off and no smoke is present, the cause may be one of the following:

There may be insufficient battery power, try new batteries.
Problems with voltage or insufficient electrical power (brown out) may cause a continuous weak sounding alarm. For AC or AC/DC models, temporarily disconnect power at the service panel until the brown out is over. If you do not restore the AC power, your smoke alarms cannot warn you of a fire.
Incompatible warning device. If an incompatible alarm or auxiliary device is linked into a series of AC or AC/DC smoke alarms it may cause the system inadvertently go off.

Q: My smoke alarm keeps chirping, even with a new battery. What is causing this?

A: There are a number of possible causes for your smoke alarm to keep chirping even with a new battery.

It is possible that your smoke alarm "silence" button was pushed by mistake. The alarm will now "chirp" once a minute for up to 15 minutes before resetting.
Are you sure it's the smoke alarm? Funny to ask, but other devices have similar low battery chirps or warning tones.
Your "new" batteries may not be fresh. If batteries are stored, especially in cold areas like refrigerators, they lose their charge more quickly. Always check the freshness date on the package when buying new batteries. Keep plenty of replacement batteries on hand so that you are sure to always be protected by your smoke alarms.

Q: I lost my First Alert smoke alarm owner's manual. How can I get a new one?

A: First Alert smoke alarm owner's manuals are available online for download at no cost. Find your alarm in our Smoke Alarms section.

Q: Why does the National Fire Protection Association (NFPA) recommend that home smoke alarms be replaced after 10 years?

A: Smoke alarms have a limited life. Although each smoke alarm and all of its parts have passed many stringent tests and are designed to be as reliable as possible, any of these parts could fail over time. Therefore, you must test the devices weekly. The unit should be replaced immediately if it is not operating properly. The performance of smoke alarms older than 10 years is simply not reliable. To ensure your family's safety, all carbon monoxide and smoke/CO combination alarms need to be replaced every 5-7 years. All smoke alarms need to be replaced every 10 years.

If it's time to replace your alarms, consider the NEW 10-Year Life series and never have to worry about a battery replacement for the life of the alarm.10-Year alarms are available in smoke,carbon monoxide and combination alarms.

Q: How do I get my carbon monoxide alarm to stop chirping?

A: If your carbon monoxide alarm keeps chirping, the battery may be low or weak. On First Alert carbon monoxide detectors, check to see if the battery light is yellow or green. If the alarm is chirping and the light is yellow, it means the battery is low. The way to get a carbon monoxide alarm to stop chirping is to replace the battery.

Q: Where should I install carbon monoxide alarms? What is proper carbon monoxide alarm placement?

A: It is very important to install carbon monoxide alarms near or in each separate sleeping area. Many states now require that a carbon monoxide alarm is placed in each bedroom. For added protection, placement of an additional carbon monoxide alarm at least 15-20 feet away from the furnace or fuel burning heat sources is recommended. Also, install carbon monoxide alarms at least 10 feet from sources of humidity like bathrooms and showers. In two story houses, install one carbon monoxide alarm on each level of the home. If you have a basement, carbon monoxide alarm placement is recommended at the top of the basement stairs.

Q: Is there anywhere I shouldn't install carbon monoxide alarms?

A: Do not install carbon monoxide alarms in garages, kitchens, furnace rooms, or in any extremely dusty, dirty, humid, or greasy areas. Do not install alarms in direct sunlight, or areas subjected to temperature extremes. These include unconditioned crawl spaces, unfinished attics, un-insulated or poorly insulated ceilings, and porches. Carbon monoxide alarms should not be installed in outlets covered by curtains or other obstructions. Do not install in turbulent air-near ceiling fans, heat vents, air conditioners, fresh air returns, or open windows. Blowing air may prevent carbon monoxide from reaching the CO sensors.

Q: How many carbon monoxide alarms should I have in my home?

A: So how many carbon monoxide alarms should you have in your home? The National Fire Protection Association (NFPA) recommends that you should have a carbon monoxide alarm centrally located outside of each separate sleeping area in the immediate vicinity of the bedroom. For added protection, you should have additional carbon monoxide alarms in each separate bedroom and on every level of your house, including the basement. Some states now require that you have a carbon monoxide alarm in each bedroom of the house. If you install only one carbon monoxide alarm in your home, place it near or in your bedroom.

Q: What is the proper way to do a carbon monoxide alarm test?

A: The following procedure is the proper way to do a carbon monoxide alarm test - Press and hold the Test Button on the front of the alarm until the alarm sounds. Be sure you hold the button down long enough; it can take up to 20 seconds for the alarm to respond to the test.

Q: Is it a false alarm when my carbon monoxide alarm sounds and there doesn't seem to be a problem?

A: A carbon monoxide alarm false alarm should not occur if your alarm is in working order. Remember, carbon monoxide is an odorless, colorless gas. If your carbon monoxide alarm went off, it detected potentially harmful amounts of carbon monoxide. After the professionals have evaluated the situation, make sure no one has any symptoms of carbon monoxide poisoning.

Here are a few situations that may cause a carbon monoxide alarm "false alarm:"

The carbon monoxide alarm needs to be relocated. Carbon monoxide alarms should be located 15-20 feet away from all fossil fuel burning sources like furnaces and stoves. Alarms should be located 10 feet away from sources of humidity like showers.
Fossil fuel burning appliances may not be burning fuel completely. Check pilot lights/flames for blue color. Appearance of yellow or orange flames indicates incomplete combustion-a source of carbon monoxide.

Q: Will carbon monoxide alarms detect explosive gas leaks?

A: No, a single function carbon monoxide alarm reacts to carbon monoxide only. To detect explosive gas, you need an explosive gas detector. Different kinds of explosive gas can be detected and it is recommended that any home that utilizes natural or propane gas have at least one explosive gas leak detector.

Q: I'm ready to change my alarm battery - what replacement batteries can I use?

A: Check your User's Manual or the nameplate on the back of the alarm. Different smoke detectors & CO alarms use different kinds of batteries - 9V, AA, AAA - it all depends on the particular model you have. Use quality batteries like lithium batteries - having plenty of power is worth any extra cost. Never use rechargeable batteries because they may not always provide a consistent charge.

First Alert SCO501CN-3ST Manual

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