20 Best First Alert Co511b [2024]

Are you looking for the best first alert co511b? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling first alert co511b.

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1 First Alert BRK CO511 Carbon Monoxide (CO) Detector Wireless Interconnected with Voice and Location First Alert BRK CO511 Carbon Monoxide (CO) Detector Wireless Interconnected with Voice and Location
2 First Alert Battery Powered Wireless Interconnected Photoelectric Smoke and Carbon Monoxide Combo... First Alert Battery Powered Wireless Interconnected Photoelectric Smoke and Carbon Monoxide Combo...
3 First Alert Carbon Monoxide Detector Alarm|No Outlet Required with Digital Display and Peak Memory,... First Alert Carbon Monoxide Detector Alarm|No Outlet Required with Digital Display and Peak...
4 First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital... First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital...
5 Arlo - Wireless Home Security Camera System | Night vision, Indoor/Outdoor, HD Video, Wall Mount |... Arlo - Wireless Home Security Camera System | Night vision, Indoor/Outdoor, HD Video, Wall Mount...
6 SimpliSafe 9 Piece Wireless Home Security System w/HD Camera - Optional 24/7 Professional Monitoring... SimpliSafe 9 Piece Wireless Home Security System w/HD Camera - Optional 24/7 Professional...
7 First Alert Z-Wave Smoke Detector & Carbon Monoxide Alarm, Works with Ring Alarm, 2nd Generation First Alert Z-Wave Smoke Detector & Carbon Monoxide Alarm, Works with Ring Alarm, 2nd Generation
8 First Alert BRK SC9120B-6 Hardwired Smoke and Carbon Monoxide Detector (CO) with Battery Backup.... First Alert BRK SC9120B-6 Hardwired Smoke and Carbon Monoxide Detector (CO) with Battery Backup....
9 First Alert BRK SC7010B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup ,... First Alert BRK SC7010B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup ,...
10 SimpliSafe 8 Piece Wireless Home Security System - Optional 24/7 Professional Monitoring - No... SimpliSafe 8 Piece Wireless Home Security System - Optional 24/7 Professional Monitoring - No...
11 FIRST ALERT BRK PRC710V Talking Smoke and Carbon Monoxide Alarm with Built-In 10-Year Battery ,... FIRST ALERT BRK PRC710V Talking Smoke and Carbon Monoxide Alarm with Built-In 10-Year Battery ,...
12 First Alert BRK SC9120B-12 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup,... First Alert BRK SC9120B-12 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup,...
13 First Alert BRK PRC710 Smoke and Carbon Monoxide Alarm with Built-In 10-Year Battery , White First Alert BRK PRC710 Smoke and Carbon Monoxide Alarm with Built-In 10-Year Battery , White
14 First Alert Battery Powered SCO500B Wireless Interconnected Photoelectric Smoke and Carbon Monoxide... First Alert Battery Powered SCO500B Wireless Interconnected Photoelectric Smoke and Carbon...
15 First Alert SCO7CN Combination Smoke and Carbon Monoxide Detector with Voice and Location, Battery... First Alert SCO7CN Combination Smoke and Carbon Monoxide Detector with Voice and Location,...
16 First Alert SCO501CN-3ST Wireless Interconnected Combination Smoke and Carbon Monoxide Alarm with... First Alert SCO501CN-3ST Wireless Interconnected Combination Smoke and Carbon Monoxide Alarm with...
17 First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display ,... First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display ,...
18 FIRST ALERT Hardwired Wireless Smoke Alarm with Photoelectric Sensor and Battery Backup, SA521CN-3ST... FIRST ALERT Hardwired Wireless Smoke Alarm with Photoelectric Sensor and Battery Backup,...
19 First Alert PRO5 Rechargeable Heavy Duty Plus Fire Extinguisher UL rated 3-A:40-B:C, Red, 8 lbs First Alert PRO5 Rechargeable Heavy Duty Plus Fire Extinguisher UL rated 3-A:40-B:C, Red, 8 lbs
20 First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup, 6-Pack First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup, 6-Pack
Bestseller No. 1
First Alert BRK CO511 Carbon Monoxide (CO) Detector Wireless Interconnected with Voice and Location
  • Battery-operated carbon monoxide alarm can be installed easily
  • Connects multiple alarms together for wireless safety network
  • Voice alarm gives clear indication of where the problem is located
  • Electrochemical CO sensor detects elevated carbon monoxide levels.Single button silences a false alarm and tests the carbon monoxide alarm
  • Voltage:1.5
Bestseller No. 2
First Alert Battery Powered Wireless Interconnected Photoelectric Smoke and Carbon Monoxide Combo...
  • The front cover design of the alarm may vary but product function remains the same.
  • Battery-operated smoke and carbon monoxide alarm
  • Connects multiple alarms together for wireless safety network
  • Voice alarm gives clear indication of where the problem is located
  • Features photoelectric smoke sensor and electrochemical CO sensor
Bestseller No. 3
First Alert Carbon Monoxide Detector Alarm|No Outlet Required with Digital Display and Peak Memory,...
  • Keep your family safe with this easy to use digital display, battery operated carbon monoxide alarm; battery powered alarms provide continuous...
  • Features an advanced electrochemical carbon monoxide sensor; Peak Level feature displays the highest concentration of carbon monoxide measured
  • A loud 85 decibel alarm sounds when Carbon Monoxide levels reach dangerous levels
  • To ensure complete protection make sure to place one on each level of your home and in each bedroom
  • 7 year limited warranty; equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety
Bestseller No. 4
First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital...
  • Keep your family safe with this digital display, plug in carbon monoxide alarm; It works with any standard outlet and also has a battery backup for...
  • Features an advanced electrochemical carbon monoxide sensor; Peak level feature displays the highest concentration of carbon monoxide measured
  • A loud 85 decibel alarm sounds when Carbon Monoxide levels reach dangerous levels
  • To ensure complete protection make sure to place one on each level of your home and in each bedroom
  • 7 year limited warranty; Equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety
Bestseller No. 5
Arlo - Wireless Home Security Camera System | Night vision, Indoor/Outdoor, HD Video, Wall Mount |...
  • Works with Alexa for voice control (Alexa device sold separately); Audio not supported
  • Patented 100 percent Wire Free design for easy placement anywhere and field of view 110 degree
  • Night vision cameras work even in the dark
  • Motion activated cameras and real time email or app notifications
  • Records and alerts only when motion is detected so no battery power ever goes wasted Battery:Four Lithium CR123 Photo
Bestseller No. 6
SimpliSafe 9 Piece Wireless Home Security System w/HD Camera - Optional 24/7 Professional Monitoring...
  • Ready to protect right out of the box. Just plug in the base station, place your sensors, plug in your Simplicam and start protecting your home in...
  • Optional 24/7 professional monitoring and cloud recording with police, fire & medical dispatch starting at 60c/day - No contracts (SimpliSafe products...
  • Sound the alarm. Pioneering signal burst technology that is powerful enough to cover homes of every size, with up to 1000 ft. range - no extender...
  • The SimpliCam security camera lets you see what’s happening at home anytime from your phone, tablet or computer and comes with a built-in stainless...
  • Motion sensors detect motion within 30 feet, has a 90 degree field of vision and gets along great with pets under 50lbs. Perfect for full range...
SaleBestseller No. 7
First Alert Z-Wave Smoke Detector & Carbon Monoxide Alarm, Works with Ring Alarm, 2nd Generation
  • This device is certified to work with Ring; Requires Ring Alarm to Work with Ring. Enjoy improved compatibility, easier setup and a seamless in-app...
  • Receive real-time notifications in the Ring App when smoke or carbon monoxide is detected.
  • Certified to work with smart home systems such as Ring Alarm, Samsung SmartThings, and Nexia Home Intelligence when connected to a Z-Wave Plus gateway...
  • Help keep your family safe with this battery-powered smoke detector and carbon monoxide alarm; includes 2 AA batteries
  • The Z-Wave Plus with Smart Start feature allows a faster and more intuitive connection of device to hub and on-boarding via QR code scan located on...
Bestseller No. 8
First Alert BRK SC9120B-6 Hardwired Smoke and Carbon Monoxide Detector (CO) with Battery Backup....
  • Keep your family safe with this 6-pack of hardwired smoke and carbon monoxide alarms; The battery backup means constant monitoring, even if there's a...
  • Features an electrochemical Carbon Monoxide sensing technology as well as an ionization sensor that detects the fine particles of a fast-burning fire
  • Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85-decibel siren provides a clear, loud warning...
  • Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected
  • Simple to use, with a single test/silence button, and side-load battery compartment; tamper-resistant locking brackets and universal mounting brackets...
SaleBestseller No. 9
First Alert BRK SC7010B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup ,...
  • Keep your family safe with this hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power...
  • Features electrochemical Carbon Monoxide sensing technology as well as a photoelectric sensor equipped with Optipath 360 technology that enhances...
  • In case of danger, the loud spread spectrum alarm is designed to be heard easily by even those with some hearing issues
  • Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected
  • 10 year limited warranty; Equipped with end of life signal chirp, so you know when it's time to replace the unit for your safety
SaleBestseller No. 10
SimpliSafe 8 Piece Wireless Home Security System - Optional 24/7 Professional Monitoring - No...
  • Simple to set up. Seriously secure - Get ready to protect right out of the box. Just plug in the base station, place your sensors, and start...
  • 24/7 professional monitoring for faster police response - With optional monitoring services, our agents keep watch even when you can't, ready to...
  • Complete control of your system with the SimpliSafe App - Arm, disarm and protect anytime, anywhere.
  • Protection for entry points - Entry Sensors protect windows, doors, and cabinets and alert you when someone tries to enter. Customizable and can send...
  • Blanket a whole room - Motion sensors detect motion within 30 feet, have a 90 degree field of view and get along great with pets under 50lbs. Perfect...
SaleBestseller No. 11
FIRST ALERT BRK PRC710V Talking Smoke and Carbon Monoxide Alarm with Built-In 10-Year Battery ,...
  • Complies with all current 10-year legislation in U. S. states/cities where required, Rigorously tested to meet UL standards, Faster turnarounds on job...
  • Tells you whether the danger is smoke or carbon monoxide and where the threat is among up to 11 pre-programmed locations in your home
  • Features electrochemical Carbon Monoxide sensing technology and photoelectric smoke sensor optimized to detect larger smoke particles produced by...
  • 10-year limited ; equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for your safety (the date printed on the...
  • First Alert 10 Year Combo Photoelectric Smoke & CO Alarm w/ Voice can be preprogrammed with the following locations: Basement Kitchen Child's Bedroom...
Bestseller No. 12
First Alert BRK SC9120B-12 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup,...
  • Keep your family safe with this 12 pack of hardwired smoke and carbon monoxide alarms; the battery backup means constant monitoring, even if there's a...
  • Features an electrochemical Carbon Monoxide sensing technology as well as an ionization sensor that detects the fine particles of a fast burning fire
  • Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85 decibel siren provides a clear, loud warning...
  • Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when a threat is detected
  • Simple to use, with a single test/silence button, and side load battery compartment; tamper resistant locking brackets and universal mounting brackets...
SaleBestseller No. 13
First Alert BRK PRC710 Smoke and Carbon Monoxide Alarm with Built-In 10-Year Battery , White
  • Complies with all current 10 year legislation in U. S. states/cities where required
  • Features electrochemical Carbon Monoxide sensing technology and photoelectric smoke sensor optimized to detect larger smoke particles produced by...
  • A loud 85 decibel alarm sounds when Carbon Monoxide, and Smoke levels begin to rise
  • Features a sleek, low profile design to blend more fully into the wall and out of sight
  • 10-year limited ; equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for your safety (the date printed on the...
SaleBestseller No. 14
First Alert Battery Powered SCO500B Wireless Interconnected Photoelectric Smoke and Carbon Monoxide...
  • The front cover design of the alarm may vary but product function remains the same.
  • Battery operated smoke and carbon monoxide alarm can be installed easily
  • Wireless interconnect uses radio frequency communication to connect the alarms, without any electrical wiring needed.
  • Connects multiple alarms together for wireless safety network (not z-wave compatible)
  • When your alarms are interconnected, they communicate with each other, forming an integrated system of protection for your home
SaleBestseller No. 15
First Alert SCO7CN Combination Smoke and Carbon Monoxide Detector with Voice and Location, Battery...
  • Keep your family safe with this talking battery operated smoke and carbon monoxide alarm; it's equipped with voice and location, so you are alerted of...
  • Tells you whether the danger is smoke or carbon monoxide and where the threat is among up to 11 preprogrammed locations in your home
  • Features an electrochemical carbon monoxide sensing technology as well as a photoelectric sensor that detects the larger particles of a smoldering...
  • Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85 decibel siren provides a clear, loud warning...
  • Simple to use, with a single test/silence button, and EZ access battery drawer allows you to change batteries without removing alarm from the ceiling
Bestseller No. 16
First Alert SCO501CN-3ST Wireless Interconnected Combination Smoke and Carbon Monoxide Alarm with...
  • Battery operated smoke and carbon monoxide alarm can be installed easily
  • Connects multiple alarms together for wireless safety network
  • Voice alarm gives clear indication of where the problem is located
  • Features photoelectric smoke sensor and electrochemical CO sensor
  • One button silences a false alarm and tests the unit. Loud 85 decibel alarm
Bestseller No. 17
First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display ,...
  • Keep your family safe with this easy to use digital-display, 10-year battery operated carbon monoxide alarm; Battery powered alarms provide continuous...
  • Easy-to-read backlit digital display shows temperature and CO concentration; Peak Level feature displays the highest concentration of carbon monoxide...
  • 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
Bestseller No. 18
FIRST ALERT Hardwired Wireless Smoke Alarm with Photoelectric Sensor and Battery Backup, SA521CN-3ST...
  • Help keep your family safe with this hardwired smoke alarm that wirelessly interconnects with other First Alert–enabled alarms to create a home...
  • Equipped with photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false...
  • Wirelessly connect up to 18 First Alert enabled alarms for the maximum in whole-home protection
  • Hardwired alarm includes 2 AA backup batteries for continued monitoring in the event of a power outage
  • Includes test/silence button, low-battery warning, EZ access battery door
Bestseller No. 19
First Alert PRO5 Rechargeable Heavy Duty Plus Fire Extinguisher UL rated 3-A:40-B:C, Red, 8 lbs
  • The First Alert PRO5 Fire Extinguisher is UL rated 3 A: 40 B:C and exceeds minimum 2 A:10 B:C code requirements; It features durable all metal...
  • Heavy duty fire extinguisher is ideal for home offices and small businesses, and fights wood, fabric, paper, flammable liquid, and electrical fires
  • Uses mono ammonium phosphate extinguishing agent; Rechargeable by certified professionals after use
  • Includes mounting bracket and easy to read, color coded, corrosion resistant pressure gauge
  • 12 year limited warranty
SaleBestseller No. 20
First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup, 6-Pack
  • 6 pack of hardwired smoke alarms, includes battery backup for power outages
  • Tamper resistant locking pins, single button silence/test and loud 85Db alarm
  • 120-Volt AC power with 9-volt battery backup (included) to keep alarm functioning during power outage
  • Open mounting design for easy installation with side load battery compartment for quick replacement and interconnect able up to 18 units (12 smoke, 6...
  • 10-Year limited

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FAQ:

Q: How to change batteries in First Alert alarms?

A: – Turn off the power to the smoke detector at your circuit breaker. – Remove the detector from its mounting bracket and unplug the power supply. – Remove the battery from the smoke detector (if there is a battery). – With the battery removed, press and hold the test button for 15 to 20 seconds.

Q: What is first alert Carbon Monoxide alarm?

A: 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.

Q: Where are First Alert smoke detectors made?

A: – Having a good smoke detector is one of the most important things you can do for your home’s safety. – Our top pick, the X-Sense SC01, has an LCD screen, 10-year battery, and self-monitoring functions. – We also recommend Nest Protect, First Alert, and other models from X-Sense.

Q: What is a Wireless smoke detector?

A: When one alarm sounds,they all do: wireless technology uses radio frequency to both transmit and receive messages about a hazard in the home. Battery power enables homeowners to install interconnected alarms without rewiring. Smart touch button quickly and temporarily silences nuisance alarms.