First Alert Smoke/Fire Detector in Gray | 6.75 H x 13 W x 15.35 D in | Wayfair 1040963

First Alert Carbon Monoxide Detector in Black | 8.45 H x 6.75 W x 1.3 D in | Wayfair 1039753

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... ... more

First Alert Smoke Detector in Gray | 8.5 H x 6.75 W x 3.5 D in | Wayfair 1039814

The First Alert 0827B sealed lonization smoke alarm features a 10-year sealed lithium battery, eliminating the need for battery replacements during the lifetime of the alarm. This smoke detector with ionization sensor has a tamperproof design, a mute... ... more

First Alert Photoelectric Smoke & Carbon Monoxide Detector in Black | 8.45 H x 6.75 W x 2.55 D in | Wayfair 1039783

The First Alert PRC700 Smoke and Carbon Monoxide Alarm has a slim profile, designed to blend more fully into the wall and out of sight. It offers the same functionality you expect from First Alert with a new design that takes up less space. The... ... more

First Alert Electrochemical Smoke & Carbon Monoxide Detector in Black | 8.45 H x 6.75 W x 3.55 D in | Wayfair 1042107

This hardwired combination smoke and carbon monoxide detector includes a 9-volt battery backup that continues to protect you in the event of a power failure. The alarm features electrochemical CO sensing technology, an ionization sensor for smoke... ... more

First Alert Hard-Wired Ionization Smoke Alarm in Gray | 8.4 H x 6.75 W x 3.45 D in | Wayfair 1039939

Designed to help promote household safety, the First Alert Hard-Wired Ionization Smoke Alarm with battery backup can provide a vital early warning of fire. This hardwired smoke detector uses an ionization smoke sensor to detect smoke from hot,... ... more

First Alert Battery-operated Photoelectric Smoke Alarm in Gray | 2 H x 6.75 W x 8.5 D in | Wayfair FAT1039772

Help protect your home with the product. This low-profile smoke alarm uses an ultra-reliable photoelectric sensor to detect smoke from slow-burning, smoldering fires. Half as thick as a standard alarm, this detector has a slim, contemporary design that... ... more

First Alert Photoelectric Smoke & Carbon Monoxide Combo Alarm in Gray | 1.25 H x 6.75 W x 8.5 D in | Wayfair FAT1039868

The product helps protect your home from 2 potentially deadly threats by providing up to a decade of uninterrupted monitoring. Equipped with dual sensors, this low-profile alarm detects smoke from slow-burning, smoldering fires and elevated carbon... ... more

First Alert Dual-Power Carbon Monoxide Plug-in Alarm in Black | 2.5 H x 6.75 W x 8.5 D in | Wayfair FAT1039746

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... ... more

First Alert Plug-in Carbon Monoxide Alarm in Black | 2.25 H x 6.75 W x 8.25 D in | Wayfair FAT1039730

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... ... more

First Alert Plug-in Carbon Monoxide Alarm in Black | 2.25 H x 6.75 W x 8.25 D in | Wayfair FAT1039730

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... ... more

First Alert Battery-Powered Carbon Monoxide Alarm in Black | 2.25 H x 6.75 W x 8.5 D in | Wayfair FAT1039718

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... ... more

First Alert Photoelectric Smoke Fire Detector in Gray | 5.85 H x 5.7 W x 8.9 D in | Wayfair 1040958

6 pc 10YR Battery Photo Smoke Alarm Contractor Pack - This BRK Slim Photoelectric Smoke Alarms includes a 10-Year Battery helping protect your home by providing up to a decade of uninterrupted monitoring. This low-profile smoke alarm uses an... ... more

First Alert Photoelectric Smoke Fire Detector in Gray | 8.45 H x 6.7 W x 3.55 D in | Wayfair 1039826

The First Alert interconnected wireless smoke alarm with voice location is designed to notify you of trouble with both an 85 dB siren and voice notification. The battery-operated unit can be installed easily, without wires or an electrician. The units... ... more

First Alert Battery Ionization/Photoelectric Sensor Smoke & Fire Alarm in Gray | 5 H x 5 W x 2 D in | Wayfair 1039842

This First Alert Battery Ionization/Photoelectric Sensor Smoke and Fire Alarm provides early warning of both flaming and smoldering fires. Additionally, its intelligent sensing technology is designed to cut down on nuisance alarms from cooking smoke or... ... more

First Alert Battery Photoelectric Smoke & Fire Alarm in Gray | 5.25 H x 5.25 W x 1.19 D in | Wayfair 1039772

Help protect your home with the First Alert Battery Photoelectric Smoke and Fire Alarm. This low-profile smoke alarm uses an ultra-reliable photoelectric sensor to detect smoke from slow-burning, smoldering fires. Half as thick as a standard alarm,... ... more

First Alert Photoelectric Smoke & Carbon Monoxide Detector in Gray | 6.25 H x 6.1 W x 9.25 D in | Wayfair 1040957

6 pc 10YR Battery Photo Smoke/CO Alarm - The First Alert Ten-Year 2-in-1 photoelectric smoke detector with carbon monoxide alarm features our new slim design and maximum protection. It's protection at its finest and lasts a full 10 years without the... ... more

First Alert Photoelectric Smoke Detector in Gray | 9.4 H x 7 W x 4.5 D in | Wayfair 1042409

The First Alert 10-year battery operated slim design smoke alarm provides the same protection as a standard smoke alarm while taking up only a fraction of the space. The alarms feature a built-in lithium-ion battery that provides continuous power for... ... more

First Alert Smoke Detector in Gray | 5.85 H x 14.5 W x 5.6 D in | Wayfair 7010B6CP

Promote greater fire safety with the First Alert 7010B Hardwired Photoelectric Smoke Alarm with Battery Backup. This hardwired smoke detector uses a photoelectric smoke sensor to reliably detect smoke produced by smoldering fires, helping give you and... ... more

First Alert Photoelectric Dual Sensor Smoke Detector in Gray | 5.25 H x 5.15 W x 2.6 D in | Wayfair 3120B

The BRK model no. 3120B is a wire-in, 120 V AC 60 Hz single and/or multiple station photoelectric and ionization dual sensor smoke alarm specifically designed for residential and institutional applications including sleeping rooms of hospitals, hotels,... ... more

First Alert Battery Photoelectric Smoke Alarm in Gray | 5.13 H x 5.13 W x 1 D in | Wayfair 1039856

The First Alert Battery Photoelectric Smoke Alarm, slim profile with escape light helps protect your home by providing up to a decade of uninterrupted monitoring. This low-profile smoke alarm uses an ultra-reliable photoelectric sensor to detect smoke... ... more

First Alert Carbon Monoxide Detector in Black | 4.2 H x 11.2 W x 5.55 D in | Wayfair CO400B6CP

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... ... more

First Alert Smoke & Carbon Monoxide Detector in Black | 8.5 H x 6.7 W x 3.6 D in | Wayfair 1044807

This easy-to-install First Alert Z-Wave smoke and carbon monoxide alarm is designed for compatibility with certified First Alert enabled Z-Wave devices. It can send you mobile alerts in the event of an emergency and includes an insect-screened... ... more

First Alert Carbon Monoxide Detector in Black | 5.85 H x 5.7 W x 2.5 D in | Wayfair SCO2B

The BRK SCO2B battery powered smoke and CO combo alarm is powered by a single 9V alkaline battery. It is tested and silenced by a single button. Electrochemical carbon monoxide sensor is the most accurate. It also includes a dust cover to help to... ... more

First Alert Plug-In Carbon Monoxide Detector in Black | 8.45 H x 6.7 W x 2.7 D in | Wayfair 1039730

This First Alert plug-in carbon monoxide alarm easily plugs into any standard outlet with no additional mounting necessary. Mute button silences any nuisance alarms. Single button also tests alarm functions. Utilizes electrochemical sensor for... ... more

First Alert Carbon Monoxide Detector in Black | 9.45 H x 6.95 W x 4.15 D in | Wayfair 1039741

The 2-pack First Alert carbon monoxide alarm utilizes an electrochemical carbon monoxide sensor to detect carbon monoxide. The battery-powered design of this personal carbon monoxide detector means your space can be monitored for dangerous carbon... ... more

First Alert Electrochemical Carbon Monoxide Detector in Black | 9.5 H x 6.95 W x 4.1 D in | Wayfair 1042411

The First Alert Carbon Monoxide Plug-In Alarm with battery backup features an electrochemical CO sensor to alert you to dangerous levels of carbon monoxide. This carbon monoxide detector plugs into any standard electrical socket to monitor CO levels in... ... more

First Alert Smoke & Carbon Monoxide Detector, Wood in Black | 6.2 H x 12.3 W x 6 D in | Wayfair SC9120B6CP

6 pc Hardwire Ion Smoke/CO Alarm Contractor Pack - The BRK SC9120B hardwire combination smoke and carbon monoxide alarm detects two hazards with one simple unit. Carbon monoxide (CO) is a colorless, odorless, deadly gas. It can be emitted by sources... ... more

First Alert Plug-in Electrochemical Explosive Gas & Carbon Monoxide Alarm in Gray | 3 H x 5.6 W x 1.5 D in | Wayfair 1039760

This plug-in electrochemical explosive gas and carbon monoxide alarm features a backlit digital display, this explosive gas, and CO detector plugs into any AC outlet with no additional mounting hardware needed. | First Alert Plug-in Electrochemical... ... more

First Alert Battery Photoelectric Smoke & Carbon Monoxide Alarm in Gray | 5.67 H x 5.67 W x 1 D in | Wayfair 1039868

This First Alert Battery Photoelectric Smoke and Carbon Monoxide Alarm with voice and location has a slim profile, designed to blend more fully into the wall and out of sight. The battery-operated smoke and carbon monoxide detector alerts you to... ... more

First Alert Battery Photoelectric Smoke & Carbon Monoxide Alarm in Gray | 5.67 H x 5.67 W x 1 D in | Wayfair 1039871

This First Alert Battery Photoelectric Smoke and Carbon Monoxide Alarm has a slim profile, designed to blend more fully into the wall and out of sight. The battery-operated smoke and carbon monoxide detector alerts you to possible smoke or carbon... ... more

First Alert Battery-Powered Ionization Smoke Alarm in Gray | 5.7 H x 5.7 W x 2.25 D in | Wayfair 0827B

This Battery-Powered Ionization Smoke Alarm meets California State Smoke Alarm requirements. Featuring a prolonged lifespan of ten years, this model utilizes a sealed battery that ensures a decade's worth of uninterrupted awareness. The realization of... ... more

First Alert Battery Ionization/Photoelectric Sensor Smoke Alarm in Gray | 5.4 H x 5.4 W x 1.12 D in | Wayfair 1039828

The First Alert Battery Ionization/Photoelectric Sensor Smoke Alarm provides early warning of both flaming and smoldering fires. Additionally, its intelligent sensing technology is designed to cut down on nuisance alarms from cooking smoke or other... ... more

First Alert Hard-Wired Thermistor Heat Alarm in Gray | 5.7 H x 2 W x 5.5 D in | Wayfair HD6135FB

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... ... more

First Alert Sealed-Battery Ionization Smoke Alarm in Gray | 5 H x 5 W x 2 D in | Wayfair 827B

The First Alert(R) Sealed-Battery Ionization Smoke Alarm features a tamper-resistant lithium battery that provides a full 10 years of protection without having to change the batteries! A mute feature silences nuisance alarms from cooking smoke or... ... more

First Alert Hard-Wired Photoelectric Electrochemical Smoke & Carbon Monoxide Alarm in Gray | 5 H x 5 W x 2 D in | Wayfair SC7010B

This Hard-Wired Photoelectric Electrochemical Smoke and Carbon Monoxide Alarm features two latching features. The spread spectrum horn tone has a lower and varying frequency that makes it easier for the elderly with a normal age-related hearing loss to... ... more

First Alert Battery Photoelectric Smoke Alarm in Gray | 5.25 H x 5.25 W x 1.19 D in | Wayfair 1039852

The First Alert Battery Photoelectric Smoke Alarm with battery helps protect your home by providing up to a decade of uninterrupted monitoring. This low-profile smoke alarm uses an ultra-reliable photoelectric sensor to detect smoke from slow-burning,... ... more

First Alert Plug-In Electrochemical Carbon Monoxide Alarm in Black | 3.4 H x 5 W x 1.4 D in | Wayfair 1039734

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... ... more