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The Best Hardwired Carbon Monoxide Detector of 2023 – Reviewed and Top Rated

2,129 Reviews Scanned

Rank No. #1
FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White
  • Keep your family safe with this hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure
  • Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection.
  • 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 upon detection
  • 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 make installation easy
SaleRank No. #2
FIRST ALERT BRK CO5120BN Hardwired Carbon Monoxide (CO) Detector with Battery Backup , White
  • Plastic
  • Imported
  • 120 volt hard wired carbon monoxide alarm wires directly into your home's electrical system
  • Electrochemical sensor accurately detects carbon monoxide
  • Microprocessor controlled to minimize false alarms
Rank No. #3
Kidde Hardwired Carbon Monoxide Detector with 9-Volt Battery Backup, Digital LED Display 5.75 diameter x 1.8 depth
  • Carbon monoxide alarm operates on a 120V wired power source with a 9-Volt alkaline battery (included)
  • Digital LED display shows the level of carbon monoxide the CO alarm is sensing
  • 85-decibel alarm announces when carbon monoxide is detected
  • Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
  • Test-Hush Button makes testing the detector or silencing false alarms easy
SaleRank No. #4
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Interconnectable, LED Warning Light Indicators
  • 24/7 Self-testing components are always checking the device to ensure it's operating as expected (not a substitute for a manual push test)
  • Easy installation mounting bracket included for quick installation in 4 orientations
  • Photoelectric sensor detects visible fire particles associated with slow, smoldering fires, while the electrochemical sensor detects carbon monoxide
  • 85-decibel alarm & LED warning indicators alert you to various status: green = normal operation, amber = operating error, and red = smoke, fire or carbon monoxide event
  • Battery operated to provide reliable detection, even during power outages; two AA batteries included
Rank No. #5
FIRST ALERT Battery Powered BRK SC7010BV Hardwired Talking Photoelectric Smoke and Carbon Monoxide (CO) Detector , White
  • Keep your family safe with this talking hardwired smoke and carbon monoxide alarm; It's equipped with voice and location, so you are alerted of the danger and where it originates from across your house
  • 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 electrochemical Carbon Monoxide sensing technology and photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarms
  • 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
Rank No. #6
X-Sense Hardwired Combination Smoke and Carbon Monoxide Detector, Hardwired Interconnected Smoke and CO Detector Alarm with Replaceable Battery Backup, XP04, 3-Pack
  • More Accurate with Intelligent Technology: This hardwired smoke and carbon monoxide detector combines an advanced photoelectric smoke sensor and a Figaro electrochemical CO sensor to detect smoke from smoldering fires and dangerous CO levels quickly
  • Hardwired Alarm with Replaceable Battery Backup: This combination smoke and carbon monoxide detector is AC hardwired with a 9 V battery backup, so the alarm can continuously monitor for smoke and CO even if there is a power outage
  • Interconnects Up to 18 Units for Full Coverage: You can connect up to 18 X-Sense 2-in-1 hardwired alarm, so when one alarm is triggered, all will sound together throughout your home
  • Easy Installation: All mounting hardware is included for fast and simple installation in minutes
  • Premium Quality: Made from high-quality materials and components, this hardwired combination alarm offers a long lifespan of up to 10 years
SaleRank No. #7
Universal Security Instruments Hardwired 10 Year Tamper Proof Permanent Power Sealed Battery 3-in-1 Universal Smoke Sensing & Carbon Monoxide Combination Alarm, Model MIC1509S,white, Corded Electric
  • 3-in-1 Smart Alarm provides continuous, reliable protection. Provides temperature and humidity compensation
  • Smart Alarm Technology provides peace of mind with this alarm — Fast-and-easy installation suitable for houses, apartments, dormitories and more
  • Features microprocessor intelligence to virtually eliminate nuisance alarms
  • Includes 10 Year Permanent Power Alkaline Batteries. Alkaline batteries are safer and more eco-friendly dispose than lithium batteries
  • Features quick activation battery pull tab that makes the alarm easy to install while the deactivation key makes it the batteries safe for disposal
Rank No. #8
Kidde Smoke & Carbon Monoxide Detector, Hardwired, Interconnect Combination Smoke & CO Alarm with Battery Backup, Voice Alert, Pack of 6
  • Fire & CO Detector in 1 unit with alert modes, LED lights, & voice alarm, that states, "Fire Fire", "Warning Carbon Monoxide", or "Low Battery"
  • Ionization sensing technology - hardwired smoke detector detects invisible fire particles, 85 decibel alarm alerts of fire
  • Protects during a power failure - combo smoke and CO detector operates on a 120VAC power source with 2-AA battery backup
  • Test-Hush Feature - silences the unit for approximately 9 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling
  • UL Certified, 10-year limited warranty
Rank No. #9
X-Sense AC Hardwired Combination Smoke and Carbon Monoxide Detector, Hardwired Interconnected Smoke and CO Detector Alarm with Replaceable Battery Backup, XP06, 6-Pack
  • 10-Year Product Life: This combination smoke and carbon monoxide detector features high-quality sensors and components which are built to last 10 years, protecting your home for a decade; it is hardwired into your home's power with a 9 V battery backup
  • Detects Both Smoke and CO: The X-Sense detector features a photoelectric smoke sensor that detects smoke from slow-burning fires, as well as an electrochemical CO sensor that detects dangerous CO levels in the air
  • Reliable Safety Network for Complete Monitoring: Interconnect up to 18 X-Sense hardwired detectors to detect potential danger anywhere in your home, for complete monitoring and safety
  • If One Alarm Goes Off, All of Them Will: When one alarm is triggered, all emit a loud 85 dB sound, to ensure that everyone in your house is alerted; the backup battery ensures that all units are always connected and continue to function normally, even in the event of a power failure
  • Single Button Control: Simply press the test/silence button on one of the units to test or silence the entire interlinked system, without the need to operate each unit individually; the large, user-friendly central button allows for easy control with a long stick, with no climbing ladder required
SaleRank No. #10
First Alert BRK SC7010B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup , White
  • Keep your family safe with this hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure
  • Features electrochemical Carbon Monoxide sensing technology as well as a photoelectric sensor equipped with Optipath 360 technology that enhances detection with 360 degree access and reliably detects smoke from smoldering fires
  • 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
Rank No. #11
First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup
  • Superior carbon monoxide sensor and dual ionization smoke alarm
  • Inter-connectable with BRK and First Alert hardwired smoke and carbon monoxide alarms
  • Easy to install universal mount bracket
  • Simple to use silence/test button; separate smoke and CO latching alarm indicators
  • 9-volt battery included; 10-year limited warranty
Rank No. #12
Kidde Smoke & Carbon Monoxide Detector, Hardwired Interconnect, Combination Smoke & CO Alarm with Battery Backup, Voice Alerts, Contractor 6 Pack
  • Smoke detector carbon monoxide detector combo - sounds loud 85 decibel alarm with voice alerts that announce "Fire! Fire!" or "Warning! Carbon Monoxide!"
  • Hardwired with backup battery - combo smoke and carbon monoxide detector is hardwired into a 120V power source with 9V battery backup
  • Easy installation - battery door is on the front for quick replacement
  • Photoelectric smoke detector senses visible fire particles and electrochemical CO detector provides accurate readings
  • UL Certified, 10-year limited warranty
Rank No. #13
First Alert BRK SC9120LBL Hardwired Smoke and Carbon Monoxide (CO) Detector with 10 Year Sealed Battery Backup , White
  • Keep your family safer with this hardwired smoke and carbon monoxide alarm; The 10 year battery backup means constant monitoring for the life of the alarm even if there's a power failure, Single button test/silence
  • Features an electrochemical Carbon Monoxide sensing technology as well as intelligent smoke sensing technology to reduce nuisance alarms; Keyhole slots in the mounting bracket eliminate the need to remove the electrical box screws for installation
  • 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 upon detection
  • Simple to use, with a single test/silence button; Included 10 year lithium battery features a locked drawer to prevent tampering
  • 10-year limited warranty; Equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for safety
SaleRank No. #14
Kidde Wireless Hardwired Smoke Detector, 10-Year Battery Backup, Voice Alerts, Photoelectric Sensor Wire-Free Interconnect Combination Alarm
  • Photoelectric sensor technology senses visible fire particles, associated with smoldering fires, while an electrochemical sensor senses carbon monoxide
  • Smoke alarm operates on a 120V wired power source with a 10-year sealed lithium battery backup
  • Voice Alarm & an 85-decibel alarm announces a hazard when detected: “Fire!” = smoke or fire, "Warning! Carbon Monoxide!", or "Replace Alarm" when the alarm has reached its end-of-life span
  • Enables extension of coverage & protection without any need for additional wiring
  • Ambient Light Sensing feature establishes a day/night cycle and prevents late-night battery chirps in dark conditions
Rank No. #15
Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, 4 Pack
  • 2 units in 1: unit alerts you to smoke & carbon monoxide by sounding a loud, 85-decibel alarm & sounding voice alerts
  • Ionization sensor technology senses invisible fire particles, while a electrochemical sensor detects CO gas
  • Voice Alarm & an 85-decibel alarm announces a hazard when detected: “Fire!” = smoke or fire or “Warning Carbon Monoxide” = CO gas, or "Replace Alarm" when the alarm has reached its end of life span
  • Operates on a 10-year lithium battery, eliminating the need for battery replacement, while providing reliable detection during a power failure
  • Test-Hush Button makes testing the detector or silencing false alarms easy (false alarms may occur from routine cooking, shower steam, dust or humidity)
Rank No. #16
SITERWELL Hardwired Interconnected Smoke Detector Carbon Monoxide Detector Combo with 2 AA Batteries Back Up, 2 in 1 Smoke and CO Detector with Voice Alert, Smoke and CO Alarm with Self-Check, 1 Pack
  • WIRED OR WIRELESS CONNECTION - This smoke and carbon monoxide detector can be hardwired or wirelessly connected to up to 12, so when one alarm is triggered, they all sound and notify everyone of the emergency.
  • HARDWIRED AND 2 AA BATTERY BACKUP INSTALLED - The combination of smoke and carbon monoxide detectors can be connected for use in addition to the 2 AA battery backup. When the power goes out in your house, the detector will still keep you safe.
  • 2 IN 1 PROTECTION WITH UNIQUE VOICE ALARM - This combination smoke and fog detector with dual sensors detects smoke and carbon monoxide hazards in a single unit, providing an audible warning in excess of 85 decibels. In addition, the unique voice alert lets you quickly understand whether smoke or carbon monoxide is present, allowing you to avoid scenarios in a more organized manner.
  • SELF CHECK FUNCTION - This SITERWELL smoke detectors and CO combination detectors have a self-check feature that replaces manual testing. When a detector fails to work, it will notify you as soon as possible to ensure you are effectively protected.
  • HIGH QUALITY ASSURANCE - The combination detector has a 10-year sensor life and a reliable, high-performance chip to provide you with powerful protection. Products meet UL 217 and UL 2034 standards to ensure peace of mind.
Rank No. #17
Kidde 21007624 AC Photoelectric Smoke and Carbon Monoxide Detector Alarm | Hardwired with Battery Backup | Model # KN-COPE-IC
  • Provides protection from fire and carbon monoxide in one unit with Photoelectric sensor.
  • Fire warning - The red LED will flash and be accompanied by three long alarm beeps followed by a verbal warning message “Fire Fire” The alarm will repeat pattern until unit is reset or smoke is eliminated.
  • Carbon monoxide warning - Four short alarm beeps followed by a verbal warning “Warning, Carbon monoxide” This continues until the unit is reset or the CO is eliminated.
  • Low battery warning - One chirp followed by warning “low battery”. The red LED light will flash. This pattern will continue every minute for the first hour. After the first hour the red LED light will flash once every minute accompanied by the chirp sound. The “low battery” warning will only sound once every fifteen minutes. Voice Hush Indication: “Hush activated” and “Hush cancelled” voice announcement
  • Alarm memory - The green LED will blink once every 16 seconds to alert a user when the unit has alarmed for smoke or has detected a concentration of CO. If the alarm has detected a CO level of 100ppm or greater, when the test/reset button is pressed the unit will announce “CO previously detected”. If the alarm has detected abnormal levels of smoke since its last test, it will produce three rapid beeps.
Rank No. #18
X-Sense 2-in-1 Smoke and Carbon Monoxide Detector Alarm (Not Hardwired), 10-Year Battery-Operated Dual Sensor Fire & CO Alarm, Compliant with UL 217 & UL 2034 Standards, SC06, Pack of 3
  • Combination Smoke and Carbon Monoxide Alarm: One alarm to protect against 2 deadly threats, including smoke and carbon monoxide; accurately detects carbon monoxide from any potential source
  • 10-Year Battery-Operated Smoke and CO Alarm: A sealed lithium battery enables the unit to keep you and your family safe and sound for up to a decade with no need to replace batteries frequently; a low battery warning lets you know the unit is coming to its end of life
  • Faster Response to Dangers with Loud 85 dB Alarm: Upgraded photoelectric and electrochemical sensors significantly increase the sensitivity of the alarm for a faster response time while minimizing false alarms
  • Simple Installation & Operation: This battery-operated unit can be installed quickly and effortlessly without an electrician; one-button operation allows you to test and silence the alarm with ease
  • Premium Quality: Made from a premium PC material, ensuring exceptional quality and protection; approved by the ETL and meets the UL 217 and UL 2034 safety standards;comes with a 60-day money-back guarantee, a 5-year warranty, and lifetime customer support
Rank No. #19
Kidde Hardwired Smoke & Carbon Monoxide Detector, Battery Backup, Interconnectable, LED Warning Light Indicators
  • Fire & CO Detector in 1 unit with alert modes, LED lights, & voice alarm, that states, "Fire! Fire!", "Warning! Carbon Monoxide!", or "Low Battery!"
  • Ionization sensing technology - hardwired smoke detector detects invisible fire particles, 85 decibel alarm alerts of fire
  • Protects during a power failure - combo smoke and CO detector operates on a 120VAC power source with 2-AA battery backup
  • Test-Hush Feature - silences the unit for approximately 9 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling
  • UL Certified, 10-year limited warranty
Rank No. #20
3 Pack Photoelectric Smoke and Carbon Monoxide Detector, Smoke Alarm Sealed-in 10 Year Lithium Battery-Operated (White)
  • Combo Smoke and Co Detector: Features electrochemical Carbon Monoxide sensing technology and photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarms
  • 10 Year Battery Operated: This combination smoke detector and carbon monoxide detector alarm provides 10 years of continuous power with a built-in lithium battery; provides continuous monitoring of smoke and co levels, even if there's a power failure; an end-of-life signal will let you know when it's time to replace the unit for safety "
  • Test/Sience Button: Tests the unit for proper operation and resets the carbon monoxide alarm, Alarm "
  • LOW BATTERY SIGNAL: Low battery voltage signal and end of life warning ensures the co detector can work normal. Environment friendly, without smell, radiation or harm. It can keep you and your family safe at any time "
  • A loud 85-decibel alarm sounds when Carbon Monoxide, and Smoke levels begin to rise, Easy to Install and Use: The alarm can easily install with mounting bracket. No hardwired anymore "

Last update on 2023-08-06 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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  1. Brand Value: Every brand of Hardwired Carbon Monoxide Detector has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Hardwired Carbon Monoxide Detector?
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  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Hardwired Carbon Monoxide Detector.
  7. Product Quality: You don’t always get what you pay for with an Hardwired Carbon Monoxide Detector, sometimes less, and sometimes more.
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