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Carbon Monoxide Alarm, Battery Chemistry Alkaline, Battery Location Front, Bat... Carbon Monoxide Alarm, Battery Chemistry Alkaline, Battery Location Front, Battery Locking Pin Yes, Battery Size AA, Communication Protocol Not Applicable, Compatible With Not Applicable, Detector Type CO Detector, Features Front Loading Battery,... more

Smoke Alarm, Battery Chemistry Alkaline, Battery Location Side, Battery Lockin... Smoke Alarm, Battery Chemistry Alkaline, Battery Location Side, Battery Locking Pin Yes, Battery Size AA, Communication Protocol Wireless, Compatible With BRK Hardwired Alarms, BRK Wireless Interconnect Alarms, Detector Type Smoke Detector, Features... more

The First Alert(R) Sealed-Battery Ionization Smoke Alarm features a tamper-res... 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

The First Alert Plug-In Electrochemical Carbon Monoxide Alarm alerts you to da... The First Alert Plug-In Electrochemical Carbon Monoxide Alarm alerts you to dangerous carbon monoxide. 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... more

This First Alert Plug-In Electrochemical Carbon Monoxide Alarm features an ele... 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

The BRK Model CO250B is a basic carbon monoxide alarm designed to provide earl... The BRK Model CO250B is a basic carbon monoxide alarm designed to provide early warning of the presence of carbon monoxide. more

The First Alert SA350B is a smoke alarm with a 10-year lithium battery. Featur... The First Alert SA350B is a smoke alarm with a 10-year lithium battery. Featuring an ionization smoke sensing chamber which may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. more

The First Alert 9120LBL hardwired smoke alarm connects directly to your home e... The First Alert 9120LBL hardwired smoke alarm connects directly to your home electrical system. In the event of a power outage, the smoke/CO alarm is equipped with a 10-year lithium battery backup. more

This First Alert Battery Ionization/Photoelectric Sensor Smoke and Fire Alarm ... 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

This First Alert Hard-Wired Ionization Smoke Alarm with battery backup is desi... This First Alert Hard-Wired Ionization Smoke Alarm with battery backup is designed to provide peace of mind. | First Alert Hard-Wired Ionization Smoke Alarm in Gray | Wayfair more

This plug-in electrochemical explosive gas and carbon monoxide alarm features ... 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

This Battery-Powered Ionization Smoke Alarm meets California State Smoke Alarm... 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

This First Alert Battery Electrochemical Carbon Monoxide Alarm utilizes an ele... This First Alert Battery Electrochemical Carbon Monoxide Alarm utilizes an electrochemical carbon monoxide sensor that lasts for up to five years to detect carbon monoxide. This carbon monoxide detector is battery powered, making it portable and easy... more

The First Alert Battery Ionization/Photoelectric Sensor Smoke Alarm provides e... 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

This Hard-Wired Thermistor Heat Alarm is a great add-on for crawl spaces, laun... 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

This Hard-Wired Photoelectric Electrochemical Smoke and Carbon Monoxide Alarm ... 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

The First Alert Battery Photoelectric Smoke Alarm, slim profile with escape li... 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

The First Alert Battery Photoelectric Smoke Alarm with battery helps protect y... 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

This First Alert Battery Photoelectric Smoke and Carbon Monoxide Alarm with vo... 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

Designed to help promote household safety, the First Alert Hard-Wired Ionizati... 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