Smoke Detectors

Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup & Voice Alerts. Interconnects with most First Alert and BRK hardwired alarms. When one alarm sounds, all compatible alarms sound up to 12 smoke alarms and 6 other CO/heat alarms).

The First Alert SMI100-AC Interconnect Hardwire Smoke Alarm with Battery Backup meets new industry standards utilizing First Alert's Precision Detection advanced sensing technology. This hardwire smoke alarm is easy to install and replace existing detectors with no need to rewire. Plus interconnect compatible alarms to create a whole home alarm system to help provide an early warning. 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.

The First Alert SMI100 Battery-Operated Smoke Alarm is available in a convenient two pack. The SMI100 smoke alarm is equipped with First Alert's Precision Detection advanced sensing technology and meets new industry standards. This battery-operated alarm is easy to install and the front access battery compartment makes for easy battery replacements.

Anonymous. Tue May 06 2025

The First Alert SMI100 Battery-Operated Smoke Alarm is available in a convenient two-pack. The SMI100 smoke detector is equipped with First Alert's Precision Detection advanced sensing technology and meets new industry standards. This battery-operated alarm is easy to install and the front access battery compartment makes for easy battery replacements.

Great!!. Robin. US. Sun Aug 03 2025

Reliable Carbon Dioxide Monitor for Indoor and Outdoor Environments: Monitor CO₂ levels effortlessly with our carbon dioxide monitor. High-accuracy infrared sensing ensures stable readings across different concentrations. With long-lasting battery power of 72-120 hours on standby and intuitive operation, it is ideal for outdoor spaces, offices, classrooms, and labs.

The fire safety you trust is now connected and compatible. Add smart fire safety alerts to your home with the First Alert SC5 Battery Smart Smoke and Carbon Monoxide (CO) Alarm. This 2-in-1 device elevates your home's fire and CO safety whether home or away. Seamlessly integrate the SC5 Battery-Operated Smart Smoke and CO alarm into your home's safety ecosystem if you need to add detection or if it is time to replace. Interconnect when installing so when one alarm sounds, all compatible alarms sound throughout the home to help provide an early warning. This smart 2-in-1 battery-operated alarm offers advanced features and the latest smoke alarm technology. The alarm will sound voice alerts with Heads-Up warning in the event of a fire or CO emergency. Alerts will tell you the type and location of danger in the home to help you escape. The alarm will also send mobile alerts through the First Alert app to keep you informed whether home or away.The SC5 Battery Smart Smoke and CO detector is easy to install and maintain to help ensure your home and family are protected. Test alarms are working properly using the app or the alarm's single test/silence button. The SC5 alarm also provides in-app and audible notices when the alarm needs to be replaced or when the batteries are running low to help eliminate late-night chirps.

This Hard-Wired Thermistor Heat Alarm is a great add-on for crawl spaces, laundry rooms, garages, bathrooms, kitchens, or other applications not suitable for smoke alarm installations. Features advanced rate-of-rise sensing technology. The alarm sounds if either the temperature reaches 135° Fahrenheit or the temperature rises more than 15° Fahrenheit in one minute. Exclusive IR remote control test/silence feature provides unparalleled convenience. It is a performance rich solution that includes numerous safety enhancers to ensure the maximum in overall protection. This piece features a near effortless installation process and is easily maintained. The utilization of rate-of-rising temperature sensing and a microprocessor that drastically reduces the number of nuisance alarms make this an ideal addition for any number of settings. A test/silence button and low battery warning have also been included to ensure the maximum in the peace of mind. This alarm can also be interconnected with up to 12 other compatible smoke alarms and six compatible devices that include: bells, horns, repeaters and door closers. Should one unit trigger an alarm, all of the smoke alarms in the series will alert your surroundings. A power indicator will reveal with alarm in the series initiated the disturbance.

Have to send back not what I wanted. Flora. Fri Nov 15 2024

This First Alert carbon monoxide alarm features a 10-year built-in lithium battery for continuous monitoring during the life of the alarm, and uses an electrochemical carbon monoxide sensor and an 85-decibel alarm to alert you to CO threats. The advanced electrochemical CO sensor detects carbon monoxide leaks from multiple sources, such as faulty fuel-burning appliances, blocked chimneys, and generators running inside or too close to homes. Because CO evenly distributes itself, it's important to have a CO detector on every level and in every bedroom of your home. This easy-to-use alarm features a digital display that shows ambient temperature as well as peak CO levels. The detector's stylish design looks great on top of a dresser or table.

Perfect. Liz. Loudon, TN. Fri Feb 27 2026

Automotive Smoke Machine Leak Detector：The ultimate companion for leakage testing! automotive smoke machine is designed to handle various diagnostic tasks: EVAP systems, fuel tank systems, exhaust and intake systems, etc. Ideal for cars, motorcycles, ATVs, and light trucks, this machine covers your diagnostic needs with ease.

Reliable Carbon Dioxide Monitor for Indoor and Outdoor Environments: Monitor CO₂ levels effortlessly with our carbon dioxide monitor. High-accuracy infrared sensing ensures stable readings across different concentrations. With long-lasting battery power of 72-120 hours on standby and intuitive operation, it is ideal for outdoor spaces, offices, classrooms, and labs.

Automotive Smoke Machine Leak Detector:The ultimate companion for leakage testing! The automotive smoke machine is designed to handle various diagnostic tasks: EVAP systems, fuel tank systems, exhaust and intake systems, etc. Ideal for cars, motorcycles, ATVs, and light trucks, this machine covers your diagnostic needs with ease.

The SMCO200V Battery-Operated 2-in-1 Smoke Alarm & Carbon Monoxide Alarm provides reliable protection against both threats. Alarm features voice and location alerts and meets the latest industry standards. First Alert's Precision Detection advanced sensing technology complies with the latest industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.

Carbon Monoxide (CO) gas is odorless, colorless, and toxic. This is why you need a reliable CO gas detector to keep you safe in your home and office. The American Red Cross® by Eton® Blackout Buddy CO is ETL® certified to UL® 2034 CO standards. If dangerous conditions are detected, the Blackout Buddy CO will blast an audible and LED flashing alarm. - even during a power outage - because it runs on both AC power and replaceable AA batteries! Also, when the power goes out, the Blackout Buddy CO automatically turns on its emergency light so you can use it as an emergency flashlight.

The SM200 Battery-Operated Smoke Alarm meets the latest industry standards featuring First Alert's advance sensing technology in an easy to install, slim profile alarm. First Alert's Precision Detection advanced sensing technology complies with the latest industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.

Anne. Ponte Vedra, FL. Sun Jan 04 2026

Install convenient 2-in-1 protection with the First Alert SMICO110 10-Year Battery Combination Smoke & Carbon Monoxide Alarm. This combination smoke and carbon monoxide alarm meets new industry standards is easy to install, and doesn't require battery replacements for a decade. 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.

Reliable Carbon Dioxide Monitor for Indoor and Outdoor Environments: Monitor CO₂ levels effortlessly with our carbon dioxide monitor. High-accuracy infrared sensing ensures stable readings across different concentrations. With long-lasting battery power of 72-120 hours on standby and intuitive operation, it is ideal for outdoor spaces, offices, classrooms, and labs.

Automotive Smoke Machine Leak Detector:The ultimate companion for leakage testing! Our automotive smoke machine is designed to handle various diagnostic tasks: EVAP systems, fuel tank systems, exhaust and intake systems, etc. Ideal for cars, motorcycles, ATVs, and light trucks, this machine covers your diagnostic needs with ease.

The First Alert SM100V-AC Interconnect Hardwire Smoke Alarm with Battery Backup and Voice and Location Alerts meets the latest industry standards and is equipped with First Alert's Precision Detection advanced sensing technology. Battery backup provides protection during power outages and superior features to help provide an early warning and guide your escape to safety. First Alert's Precision Detection advanced sensing technology complies with the latest industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.

The First Alert SM210 10-Year Sealed Battery Smoke Alarm with Slim Profile Design is equipped with First Alert's Precision Detection advanced sensing technology and meets new industry standards. 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.

Protect your home with the innovative Water Alert System, offering unparalleled peace of mind! Featuring rapid leak detection and immediate alerts through an 85dB alarm and smartphone notifications, you'll be the first to know when water is where it shouldn't be. Designed for effortless setup in kitchens, bathrooms, basements, and beyond, its robust build stands up to humidity and varied climates. Plus, enjoy long-lasting performance and timely battery alerts, ensuring your home is always safeguarded. Don't wait for disaster to strike; invest in the Water Alert System today and secure your sanctuary!

Automotive Smoke Machine Leak Detector：The ultimate companion for leakage testing! automotive smoke machine is designed to handle various diagnostic tasks: EVAP systems, fuel tank systems, exhaust and intake systems, etc. Ideal for cars, motorcycles, ATVs, and light trucks, this machine covers your diagnostic needs with ease.

Illuminate your path to safety with the First Alert SM210L 10-Year Sealed Battery Smoke Alarm with Safety Path Light. The SM210L smoke alarm also features First Alert's Precision Detection advanced sensing technology and meets new industry standards. The 10-year battery means no battery replacements for a decade.

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Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(Battery Not Included)

All-day protection for your home from water damage. This Water Leak Detector can be placed anywhere in your home where leaks and moisture are could to be a problem, such as the apartment, basement, laundry room, kitchen, bathroom, closet. When Water is detected, it will emit a 120dB sound to notice you or neighbors until the water dry or sensor turn off. So you can keep a small leak from becoming a disastrous situation to prevent costly repairs. Low-cost, simple, and effective device prevents property damage, monetary loss, health risks caused by water damage. How to Install: 1. Turn the switch to the “OFF” situation. Put 1*9V Battery (NOT included) in the right place. 2. Turn the switch to the “ON” situation. When the sensor is contacted with water, it will keep reminding until the sensor is dry.

Automotive Smoke Machine Leak Detector, EVAP Smoke Machine Leak Tester with Built-in Air Pump, Pressure Gauge and Flow Meter, Dual-Mode Diagnostic Leak Detector for Vacuum, Fuel, Pipeline Testing Comprehensive Leak Detection Suitable for Various Vehicles Built-in Air Pump Dual Detection Modes for Precision Use with Peace of Mind Complete Accessory Kit Operating Temperature: -4°F to 167°F / -20℃ to 75℃,Output Flow Rate: 8 L/min,Main Materials: Steel, Aluminum, Brass, Silicone,Detection Modes: Air Mode, Smoke Mode,Voltage: DC12V,Item Model Number: SD317,Product Weight: 9.0 lbs / 4.07 kg,Output Pressure: 19 - 23 PSI,Smoke Mode Current: 5.6 - 6.8A,Product Dimensions: 10.7" x 6.9" x 7.8" / 273 x 176 x 197 mm

CO₂ Control Made Simple for Every Environment: Experience streamlined CO₂ control with our carbon dioxide monitoring controller. Dual infrared sensors provide stable measurements, and intelligent day-night sensing automates CO₂ supply. Switch between plant and human modes with ease, ideal for greenhouses, classrooms, or labs.

CO₂ Control Made Simple for Every Environment: Experience streamlined CO₂ control with our carbon dioxide monitoring controller. Dual infrared sensors provide stable measurements, and intelligent day-night sensing automates CO₂ supply. Switch between plant and human modes with ease, ideal for greenhouses, classrooms, or labs.

Automotive Smoke Machine Leak Detector, EVAP Vacuum Fuel Leak Tester with Built-in Air Pump, Pressure Gauge and Flow Meter, 2-Mode Vacuum Pipe Fuel Diagnostic Detector for 12V Cars Trucks Boats Comprehensive Leak Detection Suitable for Various Vehicles Built-in Air Pump Dual Detection Modes for Precision Use with Peace of Mind Complete Accessory Kit Operating Temperature: -4°F to 167°F / -20℃ to 75℃,Output Flow Rate: 8 L/min,Main Materials: Steel, Aluminum, Brass, Silicone,Detection Modes: Air Mode, Smoke Mode,Voltage: DC12V,Item Model Number: SD307,Product Weight: 8.1 lbs / 3.66 kg ,Output Pressure: 19 - 23 PSI,Smoke Mode Current: 5.6 - 6.8A,Product Dimensions: 7.0" x 6.8" x 11.4" / 177 x 173 x 290 mm

Automotive Smoke Machine EVAP Vacuum Leak Detector with Built-in Air Pump Comprehensive Leak Detection Suitable for Various Vehicles Built-in Air Pump Dual Detection Modes for Precision Use with Peace of Mind Complete Accessory Kit Operating Temperature: -4°F to 167°F / -20℃ to 75℃,Output Flow Rate: 8 L/min,Main Materials: Steel, Aluminum, Brass, Silicone,Voltage: DC12V,Item Model Number: SD308,Product Weight: 8.6 lbs / 3.91 kg ,Output Pressure: 19 - 23 PSI,Smoke Mode Current: 5.6 - 6.8A,Product Dimensions: 6.7" x 6.5" x 11.0" / 170 x 166 x 279 mm

CO₂ Control Made Simple for Every Environment: Experience streamlined CO₂ control with our carbon dioxide monitoring controller. Dual infrared sensors provide stable measurements, and intelligent day-night sensing automates CO₂ supply. Switch between plant and human modes with ease, ideal for greenhouses, classrooms, or labs.

CO₂ Control Made Simple for Every Environment: Experience streamlined CO₂ control with our carbon dioxide monitoring controller. Dual infrared sensors provide stable measurements, and intelligent day-night sensing automates CO₂ supply. Switch between plant and human modes with ease, ideal for greenhouses, classrooms, or labs.

The First Alert SMI110 10-Year Sealed Battery Smoke Alarm provides reliable protection and meets new industry standards. First Alert's Precision Detection advanced sensing technology helps reduce cooking nuisance alarms and provides an early warning. The 10-year sealed battery makes installation of the alarm easy and no battery replacements are needed for the life of the alarm.

Electric Car Jack, 5 Ton/11023 LBS Hydraulic Jack with Electric Impact Wrench, Portable Car Lift with Built-in Inflatable Pump, and LED Light for SUV MPV Sedan Truck Change Tires Garage Repair 5T Electric Jack with Non-slip Support Head LED Working Light Upgraded Hydraulic Seals 2 Convenient Ways to Charge Multi-Function Carrying Case A Car's Best Friend x Inflating Speed: 31±2 L/min,Length of Air Hose: 23.6''/60 cm,Max. Loading Weight: 5 Tons,Wrench Sockets: 17 mm/19 mm; 21 mm/23 mm,Working Current: 12 A,Pressure: 10 BAR/150 PSI,Power Cable: 13'/4 m,Voltage: DC 12 V or Vehicle battery,Max. Torque: 450±10% N.M,Product Weight: 19.4 lb/8.8 kg,Rated Current: 15 A, Fuse:15 A,Rated Power: 180 W,Lifting Range: 6.1''-17.7'' / 155-450 mm,Electric Wrench Rated Power:180 W,Air inflator Input Voltage:DC 12 V

Automotive Smoke Machine Leak Detector, EVAP Smoke Machine Leak Tester with Built-in Air Pump and Pressure Gauge, Dual-Mode Diagnostic Leak Detector for Vacuum, Fuel, Pipeline System Testing Comprehensive Leak Detection Suitable for Various Vehicles Built-in Air Pump Dual Detection Modes for Precision Use with Peace of Mind Complete Accessory Kit Operating Temperature: -4°F to 167°F / -20℃ to 75℃,Output Flow Rate: 8 L/min,Main Materials: Steel, Aluminum, Brass, Silicone,Detection Modes: Air Mode, Smoke Mode,Voltage: DC12V,Item Model Number: SD314,Product Weight:8.8 lbs / 3.99 kg,Output Pressure: 19 - 23 PSI,Smoke Mode Current: 5.6 - 6.8A,Product Dimensions: 10.0" x 6.9" x 7.8" / 255 x 176 x 197 mm

The product utilizes an electrochemical carbon monoxide sensor that lasts for up to 5 years to detect carbon monoxide. This carbon monoxide detector is battery powered, making it portable and easy to use anywhere. When carbon monoxide levels become elevated, a loud 85dB alarm alerts you to the threat.

I installed the battery, which was very easy and installed it on my wall.. Lillian. Bayonne, NJ. Fri Nov 13 2020

Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup & Voice Alerts. Easy install & battey replacement, add protection in minutes. A battery pull tab is also included to keep the batteries fresh until the home is occupied.

Stacy. US. Wed Oct 22 2025

The fire safety you trust is now connected and compatible. Add smart fire safety alerts to your home with the First Alert SC5 Battery Smart Smoke and Carbon Monoxide (CO) Alarm. This 2-in-1 device elevates your home's fire and CO safety whether home or away. Seamlessly integrate the SC5 Battery-Operated Smart Smoke and CO alarm into your home's safety ecosystem if you need to add detection or if it is time to replace. Interconnect when installing so when one alarm sounds, all compatible alarms sound throughout the home to help provide an early warning. This smart 2-in-1 battery-operated alarm offers advanced features and the latest smoke alarm technology. The alarm will sound voice alerts with Heads-Up warning in the event of a fire or CO emergency. Alerts will tell you the type and location of danger in the home to help you escape. The alarm will also send mobile alerts through the First Alert app to keep you informed whether home or away.The SC5 Battery Smart Smoke and CO detector is easy to install and maintain to help ensure your home and family are protected. Test alarms are working properly using the app or the alarm's single test/silence button. The SC5 alarm also provides in-app and audible notices when the alarm needs to be replaced or when the batteries are running low to help eliminate late-night chirps.

Install convenient 2-in-1 protection against both smoke and carbon monoxide with the First Alert SMICO105-AC Hardwire Interconnect Smoke and CO Alarm with 10-Year Battery Backup. Meets new industry standards and can interconnect with other compatible detectors to create a whole home alarm system to help provide an early warning. 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.

This was exactly what I needed. Julius. Converse, TX. Mon Nov 17 2025

The First Alert CO400 Carbon Monoxide Alarm utilizes an electrochemical carbon monoxide sensor to detect carbon monoxide. This carbon monoxide detector is battery operated, making it portable and easy to use, even in the event of a power outage. When carbon monoxide levels become elevated, a loud 85-decibel alarm alerts you to the threat.

Interconnect Hardwire Smoke Alarm with Battery Backup & Voice Alerts. Voice Warning with Location, voice tells what the danger is and its location. 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.

The product alerts you to dangerous carbon monoxide levels. This carbon monoxide detector operates on a dual-power system with battery backup for continuous monitoring, even in the event of a power outage. The backlit digital screen tells you, at a glance, what the carbon monoxide and power levels are. The monitor also features a convenient test and silence button and an end-of-life timer that lets you know when it is time to replace the unit.

Thankfully, I have not had it go off due to us not having carbon monoxide in the home, but we test it every week and it’s loud!!!. Diane. Terryville, CT. Tue Dec 31 2019

This First Alert Plug-In Electrochemical Carbon Monoxide Alarm features an electrochemical CO sensor to alert you to dangerous carbon monoxide. This personal carbon monoxide detector plugs into any standard electrical socket to monitor CO levels in your home, office, or other space. The simple, user-friendly design features battery backup to allow for continuous monitoring, even in the event of a power outage.

Received as advertised. Simple to install- just plugged in. One day shipping delay due to winter storm. Was informed about delay and provided new date, as when to expect delivery - without asking. This unit only takes up one outlet plug on a regular size two plug home outlet. There is room to plug in a 2nd male end plug, in to same outlet. Such as a night light.. Anonymous. Wed Feb 07 2024