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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

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

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

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

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

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

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

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)

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

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

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

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

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

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

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)

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

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

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

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

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

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

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

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

FIRST ALERT FAQs

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.

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

  1. Go back to FindThisBest's homepage.
  2. Type FIRST ALERT in the search box and hit Enter to see the search results.
  3. Find and click the correct FIRST ALERT to go to the new page.
  4. Select the products you want in the FIRST ALERT buying guide, and take a glance at the prices and features of the products.
  5. 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.

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.

There are usually 5 to 10 products in a brand buying guide. We found 100 FIRST ALERT products for sale, 19 of which were analyzed in detail and recommended to customers.

  1. Go to the FIRST ALERT page.
  2. 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.
  3. Place your order on Amazon.

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.

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.