SKU Product Description / Key Features
CO400 First Alert Basic Battery Operated Carbon Monoxide Alarm - CO400 (1039718)
Battery operated • CO alarm
  • Detector features a single test/silence button for efficient testing.
  • Battery-operated detector is portable.
  • Loud 85-decibel alarm sounds when CO levels are detected.
  • CO detector alerts you to carbon monoxide.
  • Utilizes an electrochemical carbon monoxide sensor to detect carbon monoxide.
CO410 First Alert Battery Operated Carbon Monoxide Alarm with Backlit Digital Display - CO410 (1039727)
Battery operated • Backlit digital display
  • Battery-operated carbon monoxide detector.
  • CO detector alerts you to elevated carbon monoxide levels.
  • Advanced electrochemical carbon monoxide sensor.
  • Loud 85-decibel alarm sounds when CO levels are elevated.
  • Easy-to-read backlit digital LED display.
CO511B First Alert Wireless Interconnect Battery Operated Carbon Monoxide Alarm With Voice Location - CO511B
Wireless interconnect • Voice & location
  • Single button silences false alarms and tests the carbon monoxide detector
  • Electrochemical CO sensor detects elevated carbon monoxide levels.
  • Connect multiple smoke and CO detectors for a wireless safety network
  • Battery-operated carbon monoxide alarm can be installed easily.
  • Voice & Location Alerts tell you the location of danger in your home.
CO5120BN First Alert Hardwired Carbon Monoxide Alarm with Battery Backup - CO5120BN
Hardwired • 9V battery backup
  • Electrochemical Carbon Monoxide Sensor - the most accurate sensor available as compared to other sensing technologies.
  • AC power indicator with a 9V Alkaline Battery Backup.
  • Latching alarm indicator - remembers which unit initiated an alarm.
  • Two silence features - can silence the low-battery chirp for up to eight hours or temporarily silence an unwanted nuisance alarm.
  • End of Life Signal provides audible notification alarms needs to be replaced.
CO600 First Alert Basic Plug-In Carbon Monoxide Alarm - CO600 (1039730)
Plug-in • 85 dB alarm • ~5-year sensor

The First Alert CO600 Plug-In Carbon Monoxide Alarm utilizes an electrochemical carbon monoxide sensor that lasts for up to five years to detect carbon monoxide. This carbon monoxide detector plugs into any wall outlet. When carbon monoxide levels become elevated, a loud 85-decibel alarm alerts you to the threat.

Advanced Electrochemical CO Sensor

The First Alert CO600 Plug-In Carbon Monoxide Alarm uses an advanced electrochemical CO sensor to detect elevated carbon monoxide levels. When CO is detected, the carbon monoxide detector sounds an alarm to warn you of the threat. Carbon monoxide can’t be seen, smelled, or tasted in the air, and it is the leading cause of accidental poisoning deaths in America. Placing carbon monoxide detectors on every floor of the home and in each sleeping room is an important way to protect your family from danger.

Comprehensive Warning Features

This carbon monoxide detector features an 85-decibel siren that is designed to wake even the soundest of sleepers. A low-battery light and alarm alert you when battery power is running low, and an end-of-life timer lets you know when the device should be replaced. The CO detector lasts approximately five years.

Simple and Easy to Use

The First Alert CO600 Carbon Monoxide Alarm is easy to set up. Simply plug the alarm into a 120-volt wall outlet, and the CO detector will start to monitor your space for carbon monoxide. There are no complicated displays or settings to navigate–a single button silences the alarm and tests the CO detector. A pull-down action chart instructs you in what to do if the CO alarm goes off.

CO605 First Alert Plug-In Carbon Monoxide Alarm with Battery Backup - CO605 (1039734)
Plug-in • Battery backup

The First Alert CO605 Carbon Monoxide Plug-In 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.

Dual Power Provides Continuous Monitoring

The carbon monoxide detector can be placed almost anywhere; all it requires is a standard electrical outlet. In the event of a power failure, backup batteries power the CO detector so it can continue monitoring your space for dangerous levels of carbon monoxide.

Electrochemical CO Sensor

The First Alert Carbon Monoxide Plug-In Alarm uses an electrochemical sensor to alert you to elevated carbon monoxide levels. Designed to alert the soundest of sleepers, a loud 85-decibel alarm warns you when carbon monoxide is detected.

Simple and Easy to Use

The carbon monoxide monitor is easy to set up: simply plug it into a standard electrical outlet to monitor your space for carbon monoxide. There are no complicated displays or settings to navigate; a single button silences the alarm and tests the CO detector.

Where To Place Carbon Monoxide Alarms: One on every level of the home and one in each sleeping area.

CO615 First Alert Plug-In Carbon Monoxide Alarm with Battery Backup and Backlit Digital Display - CO615 (1039746)
Plug-in • Battery backup • Backlit display

The First Alert CO615 Dual-Power Carbon Monoxide Plug-In 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 backlit digital screen tells you at a glance what the carbon monoxide and power levels are. The CO 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.

Dual-Power Design for Continuous Monitoring

The carbon monoxide detector is designed to work with any standard outlet, and it features battery backup to allow continuous monitoring of carbon monoxide levels in the event of a power outage. Simply place two AA batteries in the battery compartment, and if the power goes out, the backup will activate, monitoring carbon monoxide levels even during storms. A low-battery indicator light and alarm will sound when the batteries need to be replaced or are removed.

Advanced Electrochemical Sensor

The First Alert Dual-Power Carbon Monoxide Plug-In Alarm uses an advanced electrochemical sensor to detect elevated CO levels. This sensor offers increased sensitivity to carbon monoxide even at low levels. In the event of a false alarm, the silence/test button can be used to turn off the CO detector.

Backlit Digital Display is Easy to Read

The large backlit display on the carbon monoxide detector clearly shows the level of carbon monoxide in the room, as well as the power level of the backup batteries. The display is readable even in the dark and casts a calm blue light, making it ideal for use in a bedroom. The 6-foot power cord makes it easy to mount the CO monitor on a wall or position it on a shelf or nightstand.

Where To Place Carbon Monoxide Alarms:
One on every level of the home and one in each sleeping area.

CO710 First Alert Carbon Monoxide Alarm with Temperature, Digital Display and 10-Year Sealed Battery - CO710 (1039753)
10-year sealed battery • CO + temperature display

The First Alert CO710 Carbon Monoxide Alarm with 10-Year Battery and Digital Temperature Display detects dangerous carbon monoxide for up to 10 years. This carbon monoxide detector uses an electrochemical carbon monoxide sensor. A built-in 10-year lithium battery means you never need to worry about changing batteries during the lifetime of the alarm. This stylish CO monitor is designed to sit on top of a dresser or tabletop, and it has a backlit digital display that shows temperature and CO concentration.

Advanced Electrochemical CO Sensor

This carbon monoxide detector uses an advanced electrochemical CO sensor to detect elevated carbon monoxide levels. When CO is detected, the carbon monoxide detector sounds an alarm to warn you of the threat. Carbon monoxide can’t be seen, smelled, or tasted in the air, and it is the leading cause of accidental poisoning deaths in America. Placing carbon monoxide detectors on every floor of the home and in each sleeping room is an important way to protect your family from danger.

Stylish Design with LED Temperature Display

Unlike other CO monitors that are designed to mount on the wall, this modern, compact model is intended to sit stylishly on any flat surface. The backlit LED display can be changed to show the ambient room temperature as well as current CO concentrations and recent peak CO levels in parts per million. In the event of a CO incident, the data stored from the peak function can provide valuable information to emergency or hospital staff.

Built-In 10-Year Battery for a Decade of Detection

The First Alert CO710 Carbon Monoxide Alarm features a built-in 10-year lithium metal battery, so you never need to worry about replacing batteries during the lifetime of the unit. An end-of-life timer lets you know when the device should be replaced.

Alerts You to Danger

When carbon monoxide levels rise, the carbon monoxide detector sounds an 85-decibel siren that is designed to wake even the soundest of sleepers. A single button allows you to silence the alarm, as well as test to ensure the alarm is working properly.

Pack a Carbon Monoxide Alarm When Traveling
Pack a carbon monoxide alarm in your travel bags to help protect yourself and loved ones while away from home. This First Alert Carbon Monoxide Alarm with 10 Year Sealed Battery can be placed on a shelf or tabletop in your vacation rental or hotel room.

GCO1CN First Alert Combination Explosive Gas and Carbon Monoxide Alarm with Digital Display - GCO1CN (1039760)
Plug-in • Natural gas (methane/propane) + CO • Battery backup

The First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm provides clear, real-time readings with its backlit digital display. Simply plug it into any AC outlet for easy installation.

Dual Protection: Natural Gas and Carbon Monoxide Alarm

This Natural Gas Alarm and Carbon Monoxide Alarm provides essential protection for your home by detecting dangerous levels of CO and explosive gases. Accurately sensing methane and propane, this alarm also features an advanced electrochemical CO sensor to identify carbon monoxide leaks from sources like faulty appliances, blocked chimneys, or vehicles. A loud 85-decibel alarm swiftly alerts you to potential threats.

Backlit Display for Reviewing Readings

Equipped with a backlit digital display, this First Alert Carbon Monoxide and Natural Gas Alarm takes the hassle out of monitoring CO and gas levels in your home. The display gives you a clear readout of current and peak levels, allowing you to discern patterns that indicate potential leaks from an appliance, a generator, or other source.

Plugs into Any AC Outlet for Effortless Setup

Quick and easy to install, this combination natural gas and carbon monoxide alarm requires no wiring or professional help. Its compact design plugs directly into any standard outlet, while the included power cord offers flexible placement options. For added peace of mind, a 9-volt battery backup ensures continued protection during power outages. The alarm's convenient battery compartment allows for easy replacement without removal.

Easy to Operate and Test
Enjoy added convenience with remote false alarm silencing. This alarm can be paired with most standard household remote controls (not included). A simple one-touch button lets you easily test the alarm or silence unwanted alerts. And thanks to the end-of-life timer, you can know exactly when it is time to replace this carbon monoxide and natural gas detector.

SMI105-AC First Alert Precision Detection Interconnect Hardwired Smoke Alarm with 10-Year Battery Backup - SMI105-AC (1046853)
Hardwired interconnect • 10-year backup • Reduced nuisance alarms
  • 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 hardwired detector
  • Test/silence button for efficient testing to ensure alarm is working properly
  • First Alert 8th Generation Smoke Detector meets the latest industry standards.
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