FIRST ALERT

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When purchasing a product, price is the consumer's primary concern. At present, FIRST ALERT has 100 products for sale. FIRST ALERT products range in price from $14.95 to $157.99, and the average price of all the products is about $54.93.

We found that most of the FIRST ALERT products are manufactured by Resideo, First Alert / BRK Brands, Inc., and BRK Brands. The manufacturers provide FIRST ALERT with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase FIRST ALERT products on Amazon.com. The brand holds an average rating of 4.7, testifying to its excellent reputation.

FIRST ALERT Best Sellers

Last Updated: Jan 9, 2026

First Alert Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMCO100, 1-Pack,White

Smoke & Carbon Monoxide Alarms

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First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency

Provides reliable 2-in-1 protection against both smoke and carbon monoxide

Battery-operated alarm allows for easy installation and maintenance

Test/silence button for efficient testing to ensure alarm is working properly

End-of-life warning lets you know when it's time to replace the alarm

First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack

Smoke Detectors & Fire Alarms

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First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.

Battery-operated alarm allows for easy installation and maintenance

Front access battery compartment makes for easy battery replacements

End-of-life warning lets you know when it's time to replace the alarm

Test/silence button for efficient testing to ensure alarm is working properly

First Alert SC5 Battery Smart Smoke & Carbon Monoxide Alarm, SMCO600NV, 1-Pack

Smoke & Carbon Monoxide Alarms

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Compatible with Google's Nest Protect Alarm

Sends alerts to your phone if smoke and CO are detected through the First Alert app

Interconnect so when one alarm sounds, all compatible alarms in the home sound

Notifies when the batteries are low, eliminating late night chirps

Voice alerts with Heads-Up warning tells you the type and location of danger in your home

Equipped with Precision Detection Technology to help reduce nuisance alarms and provide an early warning

First Alert SC5 Hardwire Smart Smoke & Carbon Monoxide Alarm, SMCO600NV-AC, 1-Pack

Smoke Detectors & Fire Alarms

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Compatible with Google's Nest Protect Alarm

Sends alerts to your phone if smoke and CO are detected through the First Alert app

Interconnect so when one alarm sounds, all compatible alarms in the home sound

Battery backup provides continuous protection during power outages

Voice alerts with Heads-Up warning tells you the type and location of danger in your home

Equipped with Precision Detection Technology to help reduce nuisance alarms and provide an early warning

Quick Connect Plug allows for easy installation and replacements with no need to rewire

First Alert SMCO210, 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Slim Profile Design, 1-Pack

Smoke & Carbon Monoxide Alarms

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First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.

Provides reliable 2-in-1 protection against both smoke and carbon monoxide in an easy to install alarm

10-Year sealed battery eliminates battery replacements and low battery chirps for the life of the alarm

End-of-life warning lets you know when it's time to replace the alarm

Slim profile design is half the depth of a standard alarm

First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector with Battery Backup, SMICO100-AC, 1-Pack

Smoke & Carbon Monoxide Alarms

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First Alerts Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency

Through early warning interconnect, when one alarm sounds, all compatible

Quick Connect Plug allows for easy installation with no need to rewire

Battery backup provides continuous protection during power outages

Test/silence button for efficient testing to ensure alarm is working properly

First Alert CO400 Carbon Monoxide (CO) Detector, Battery Operated Alarm, 1-Pack

Carbon Monoxide Detectors

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Keep your family safe with this easy to use, battery operated carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure

Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room.The alarm sequence should last 5-6 seconds. If it does not alarm, make sure fresh batteries are correctly installed, and test it again. If the unit still does not alarm, replace it immediately

A loud 85 decibel alarm sounds when CO levels reach dangerous , Battery Replaceable - Yes

To ensure complete protection make sure to place one on each level of your home and in each bedroom

5-year limited warranty; Equipped with end of life signal chirp, so you know when it's time to replace the unit for safety

All first alert CO alarms are rigorously tested to meet UL standards

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)

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First Alert SMICO105-AC, Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with 10-Year Battery Backup, 3-Pack

Smoke & Carbon Monoxide Alarms

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First Alerts Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency

10-Year battery backup provides continuous protection during power outages

Through early warning interconnect, when one alarm sounds, all compatible

Quick Connect Plug allows for easy installation with no need to rewire

Alarm indicator visually identifies the unit that initiated the alarm

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 1-Pack

Smoke Detectors & Fire Alarms

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First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.

Through early warning interconnect, when one alarm sounds, all compatible alarms will sound

Battery backup provides continuous protection during power outages

Alarm indicator visually identifies the unit that initiated the alarm

Quick Connect Plug included allows for easy installation with no need to rewire

First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display , White

Carbon Monoxide Detectors

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Keep your family safe with this easy to use digital-display, 10-year battery operated carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure

Easy-to-read backlit digital display shows temperature and CO concentration; Peak Level feature displays the highest concentration of carbon monoxide measured

Built-in 10-year lithium battery offers continuous protection for the life of the carbon monoxide detector

A loud 85-decibel alarm sounds when CO levels reach dangerous levels

10-year limited warranty; Equipped with end-of-life signal chirp, so you know when it's time to replace the unit for safety

All first alert CO alarms are rigorously tested to meet UL standards

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)

First Alert warranty extends ten years from the date of purchase with proof of the original sales receipt and the product should be free from defect in material and workmanship

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First Alert Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMICO100, 1-Pack

Smoke & Carbon Monoxide Alarms

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First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency

Provides reliable 2-in-1 protection against both smoke and carbon monoxide

End-of-life warning lets you know when it's time to replace the alarm

Battery-operated alarm allows for easy installation and maintenance

Test/silence button for efficient testing to ensure alarm is working properly

First Alert 9120B Smoke Detector, Hardwired Alarm with Battery Backup, 3-Pack

Smoke Detectors & Fire Alarms

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Keep your family safe with this 3 pack of hardwired smoke alarms; the battery backup means constant monitoring, even if there's a power failure

Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast flaming fires and alerts you with an 85 decibel alarm

To ensure complete protection make sure to place one on each level of your home and in each bedroom

Can connect to other compatible BRK or First Alert smoke detectors, to ensure all alarms will sound when smoke is detected

Simple to use, with a single test/silence button, and side load battery compartment; Tamper resistant locking brackets and universal mounting brackets make installation easy

Rigorously tested to meet UL standards

Faster turnarounds on job sites with the easy to install, most trusted alarms in home safety

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)

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First Alert SMI100, Battery-Operated Smoke Alarm, 2-Pack

Smoke Detectors & Fire Alarms

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First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency

Battery-operated alarm allows for easy installation and maintenance

Front access battery compartment makes for easy battery replacements

End-of-life warning lets you know when it's time to replace the alarm

Test/silence button for efficient testing to ensure alarm is working properly

First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup

Smoke & Carbon Monoxide Alarms

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Superior carbon monoxide sensor and dual ionization smoke alarm

Inter-connectable with BRK and First Alert hardwired smoke and carbon monoxide alarms

Easy to install universal mount bracket

Simple to use silence/test button; separate smoke and CO latching alarm indicators

9-volt battery included; 10-year limited warranty

Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety

First Alert Smoke Alarm, Interconnect Hardwire Detector with Battery Backup, SMI100-AC, 3-Pack

Smoke Detectors & Fire Alarms

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First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency

Through early warning interconnect, when one alarm sounds, all compatible alarms will soun

Battery backup provides continuous protection during power outages

Alarm indicator visually identifies the unit that initiated the alarm

Quick Connect Plug included allows for easy installation with no need to rewire

First Alert BRK Carbon Monoxide Detector, Hardwired Alarm with Battery Backup, CO5120BN, White

Carbon Monoxide Detectors

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Plastic

Imported

120 volt hard wired carbon monoxide alarm wires directly into your home's electrical system

Electrochemical sensor accurately detects carbon monoxide

Microprocessor controlled to minimize false alarms

First Alert Smoke Alarm, Interconnect Hardwire Detector with 10-Year Battery Backup, SMI105-AC, 3-Pack

Smoke Detectors & Fire Alarms

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First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency

10-Year battery backup provides continuous protection during power outages

Through early warning interconnect, when one alarm sounds, all compatible* alarms will sound

Alarm indicator visually identifies the unit that initiated the alarm

End-of-life warning lets you know when it's time to replace the alarm

First Alert SMCO500V, Interconnect Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Voice Alerts, 1-Pack

Smoke & Carbon Monoxide Alarms

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First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency

Through early warning interconnect, when one alarm sounds, all compatible* alarms will sound

Voice & location alerts tell you what the danger is and its location to help you escape safely

Battery-operated alarm is easy to install and maintain

Provides reliable 2-in-1 protection against both smoke and carbon monoxide

First Alert Fire Extinguisher for Home, Standard Rechargeable Compliance Unit, UL RATED 1-A:10-B:C, HOME1, Red, 1-Pack

Fire Extinguishers

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First Alert's HOME1 FE1A10GR Fire Extinguisher is UL rated 1-A: 10-B:C; it features durable all-metal construction with a commercial-grade metal valve and trigger to meet demanding needs

Multipurpose fire extinguisher fights wood, paper, trash, plastics, gasoline, oil, and electrical-equipment fires

First Alert's Rechargeable Fire Extinguisher can be recharged by a certified professional after use, allowing for reuse.

Metal pull pin with a safety seal to help prevent accidental discharge and tampering; corrosion-resistant, easy-to-read, color-coded metal gauge; waterproof label with easy instructions

U.S. Coast Guard–approved for marine use. Lightweight and easy to use

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)

Pull pin with safety seal to deter accidental discharge or tampering

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FIRST ALERT FAQs

Is FIRST ALERT Legit?

Yes, FIRST ALERT is a legitmate brand on Amazon. After conducting a comprehensive analysis of 248,120 customer reviews for FIRST ALERT products on Amazon, we have determined its average rating. With a strong performance and good quality, FIRST ALERT has received an average rating of 4.7 from numerous buyers, indicating that FIRST ALERT are trustworthy and live up to their claims. Therefore, it is safe to make purchases from FIRST ALERT on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

How to find more FIRST ALERT products?

If you're interested in FIRST ALERT and want to find more FIRST ALERT products, you can follow the steps below:

Go back to FindThisBest's homepage.
Type FIRST ALERT in the search box and hit Enter to see the search results.
Find and click the correct FIRST ALERT to go to the new page.
Select the products you want in the FIRST ALERT buying guide, and take a glance at the prices and features of the products.
View the products interest you on Amazon to read the customer reviews and check the ratings. Besides, you can hit the "brand" to find more FIRST ALERT products.

How does findthisbest choose the top FIRST ALERT products?

We analyze millions of FIRST ALERT products reviews and customer reviews to recommend the best picks for most consumers. We have a professional team with decades of experience to test the products, which can help ensure that we provide our readers with accurate advice and best recommendations.

How can I purchase FIRST ALERT products via FindThisBest?

Go to the FIRST ALERT page.
Select the product you want in the FIRST ALERT buying guide, and then view the product on Amazon. For example, if you are interested in the top 1 product First Alert Combination Smoke & Carbon Monoxide Al..., you can view it on Amazon page.
Place your order on Amazon.

Who are the manufacturers of the FIRST ALERT products?

Most of the FIRST ALERT products are produced by Resideo, First Alert / BRK Brands, Inc., and BRK Brands. The manufacturers provide FIRST ALERT with a steady supply of products, and they have a good cooperative relationship with each other.

What is the purpose of your brand guide?

Our mission is to provide you with the most up-to-date and objective information about the FIRST ALERT products, helping you make more informed buying decisions. We recommend best choices of the products from the FIRST ALERT brand, helping you make better shopping choices with less time and energy.

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