Top 5 Best Co Detectors: Editor Recommended

The 10 Best Co Detectors Reviews:

1. FIRST ALERT Carbon Monoxide Detector

FIRST ALERT Carbon Monoxide Detector

This handy 2-pack of FIRST ALERT CO400 Carbon Monoxide Alarms utilizes electrochemical carbon monoxide sensors to monitor your space for carbon monoxide threats. The battery-powered design doesn’t require an electrician; simply insert the included 9-volt battery into each alarm, and the carbon monoxide detectors are ready to go. The advanced electrochemical CO sensors detect carbon monoxide leaks from multiple sources, such as faulty fuel-burning appliances, blocked chimneys, and generators running inside or too close to homes.

When CO levels become elevated, a loud 85-decibel alarm alerts you to the threat. Because CO evenly distributes itself, it’s important to have a CO detector on every level and in every bedroom of your home. Designed to be simple to use, each CO detector has just one button that silences or tests the unit, as well as an end-of-life timer that lets you know when it’s time to replace the device.

Carbon monoxide (CO) is the leading cause of accidental poisoning deaths in America, yet many people don’t know they are suffering from CO poisoning until it’s too late. Since symptoms of CO poisoning are like the flu, you might not even know you’re in danger at first. That’s why a carbon monoxide alarm is an excellent way to protect your family. It can detect the CO you can’t see, smell, or taste in the air.

Highlighted Features:

  • Keep your family safe with this 2-pack of easy to use, battery operated carbon monoxide alarms; Battery powered alarms provide continuous monitoring of CO levels, even if there’s a power failure
  • Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room
  • A loud 85-decibel alarm sounds when CO levels reach dangerous levels
  • To ensure complete protection make sure to place one on each level of your home and in each bedroom
  • 5-year limited warranty; Equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for safety
  • All first alert CO alarms are rigorously tested to meet UL standards

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2. Kidde Nighthawk Carbon Monoxide Detector

Kidde Nighthawk Carbon Monoxide Detector

The Kidde Carbon Monoxide Detector, AC Plug-In with Battery Backup, Digital Display, model KN-COPP-3, features ionization sensing technology to protect you & your family from the dangers of carbon monoxide. Operating with an AC Plug-In that can be easily installed in any AC wall outlets and a 9V battery backup, the CO detector provides continuous protection from carbon monoxide, even during power outages.

A red dot will appear in the lower, right corner of the CO alarm to indicate that the CO detector is operating normally. When the CO alarm detects carbon monoxide gas, 4 beeps will sound & a number reading will appear on the digital display that measures the CO concentration.

These CO levels will be stored it the detectors memory until its reset. The digital display also provides a low battery warning by sounding 1 alarm per minute and displaying “Lb” on the screen. For whole home family protection, place 1 carbon monoxide detector on each level of your home & in your bedroom. UL Certified with a 10-year limited warranty. Meets requirements of UL 2034.

Highlighted Features:

  • Protects during a power failure – carbon monoxide alarm contains a 9V battery backup in case of plug-in failure
  • Easy installation – plug can be installed in any outlet of your home; or use the attached extension cord to place on a table or shelf
  • Peace of mind – when CO detection is normal, a red dot appears in the lower right corner & blinks; includes a test button
  • Electrochemical sensing technology – CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm & memory storage
  • UL Certified, 10-year limited warranty

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3. Kidde Nighthawk Carbon Monoxide Detector & Propane, Natural

Kidde Nighthawk Carbon Monoxide Detector & Propane, Natural

The Kidde Nighthawk Carbon Monoxide Detector & Propane, Natural, & Explosive Gas Detector, AC Plug-In with Battery Backup & Digital Display, model 900-0113, is powered by a 120VAC wall outlet with a 9-volt alkaline battery for backup during a power failure. Using electrochemical sensing technology, the combination carbon monoxide alarm & gas detector warns with alarm & digital display.

For CO detection, the alarm will sound & the display will report out the levels of carbon monoxide in parts per million (PPM). For explosive gas detection, the alarm will sound and the display will identify “GAS” as present. The digital display will have a red dot in the lower right corner that will blink to indicate normal operation. The Smart Hush feature silences the fire alarm for approximately 8 minutes. UL Certified with a 5-year limited warranty. Meets requirements of UL 2034.

Highlighted Features:

  • CO detector with digital display & alert modes; 85 decibel alarm alerts of fire
  • Electrochemical sensor technology – detects carbon monoxide & other forms of combustible gas such as propane & natural gas
  • Easy to install – combo smoke and gas alarm is powered by a 120VAC wall outlet with 9V battery backup
  • Low battery warning feature indicates when the battery needs replacement
  • UL Certified, 10-year limited warranty
  • Two alarms in one detects carbon monoxide and explosive gas
  • Three convenient mounting options

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4. First Alert CO605 Plug-In Carbon Monoxide Detector

First Alert CO605 Plug-In Carbon Monoxide Detector

The First Alert CO605 plug in carbon monoxide alarm with battery backup uses an electrochemical carbon monoxide sensor the most accurate technology available. The alarm easily plugs into any standard outlet with no additional mounting. Battery backup ensures alarm Works even during power outages. Mute button silences any nuisance alarms. Single button also tests alarm functions. Carbon monoxide alarm utilizes electrochemical sensor for increased accuracy. 7 year limited. Co alarm meets UL standards. There are no complicated displays or settings to navigate.

Highlighted Features:

  • Keep your family safe with this easy to use plug in carbon monoxide alarm; It works with any standard outlet and also has a battery backup for continuous monitoring of Carbon Monoxide levels, even if there’s a power failure
  • Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room
  • Simple to use, with a single test/silence button; A loud 85 decibel alarm sounds when carbon monoxide levels reach dangerous levels. Low battery signal mute, quiets low battery signal for up to 8 hours
  • 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
  • All first alert CO alarms are rigorously tested to meet UL standards. Item length is 3.4 inches, item width is 1.38 inches and item height is 5 inches
  • First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)

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5. Kidde Carbon Monoxide Detector

Kidde Carbon Monoxide Detector

The Kidde Carbon Monoxide Detector with Battery Backup, Digital Display & LED Lights, model 900-0146-LP, features an electrochemical sensing technology to protect you & your family from the dangers of carbon monoxide. Operating on 3-AA alkaline batteries, the CO detector provides continuous protection from carbon monoxide, even during power outages.

The CO monitor provides 2 LED lights: a green LED will flash once every 30 seconds to indicate the alarm is operating properly when batteries are installed, a red LED will pulse 4 short beeps to indicate CO gas has been detected until the device is reset or the gas is eliminated. For whole home family protection, place 1 carbon monoxide detector on each level of your home & in your bedroom. UL Certified with a 10-year limited warranty.

Highlighted Features:

  • CO detector with alert modes & 2 LED lights that pulse for power & CO detection
  • Electrochemical sensing technology – CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm
  • Protects during a power failure – CO detector operates on 3-AA batteries
  • Easy to read digital display – allows for easy viewing of carbon monoxide levels
  • UL Certified, 10-year limited warranty

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6. Kidde Carbon Monoxide Detector, Battery Powered

Kidde Carbon Monoxide Detector, Battery Powered

The Kidde Carbon Monoxide Detector, Battery Powered with LED Lights, model 9CO5LP2, is powered on 2-AA batteries, to protect during a power failure. Using sophisticated electronic technology, the carbon monoxide alarm detects for poisonous gas and warns with alarms and LED lights. A red LED will flash in unison with the alarm sounding as 4 beeps with a corresponding red LED flash that warns of carbon monoxide. The green LED on the alarm will flash every 60 seconds to indicate the alarm is operating properly when power is present. UL Certified with a 10-year limited warranty.

Highlighted Features:

  • CO detector with alert modes & LED lights that pulse for power, CO detection, & low battery
  • Sophisticated electronic components to protect you & your family from the dangers of carbon monoxide, 85 decibel alarm alerts of fire
  • Protects during a power failure – operates on 2-AA batteries, included with pack
  • Whole home family protection – place 1 carbon monoxide detector on each level of your home & in your bedroom to protect from poisonous gases
  • UL Certified, 10-year limited warranty

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7. FIRST ALERT Carbon Monoxide Alarm

FIRST ALERT Carbon Monoxide Alarm

BRK Model CO250 is a single station carbon monoxide alarm specifically designed for residential and institutional applications including sleeping rooms of hospitals, hotels, motels, dormitories, and other multifamily dwellings as defined in standard NFPA 101. Model CO250 has been fully tested and complies with, UL2034, NFPA 720, and NFPA 101 and other agencies that model their codes after the above agencies.

It meets building codes where battery operated carbon monoxide alarms with silence are required and with model building codes published by the ICC. BRK Model CO250 is a state of the art carbon monoxide alarm designed to provide early warning of the presence of carbon monoxide.

It features an electrochemical carbon monoxide sensor, an 85dB horn, a full function test switch and a red LED light that indicates DC power or alarm. The CO250B features a 9V alkaline battery and the CO250LB a 9V long life lithium battery. This alarm has two silence features.

Low Battery Silence: Temporarily silence the low battery chirp for up to eight hours. Alarm Silence: Silence alarm for several minutes. It also features a tamper resistant locking pin that locks alarm cover to prevent removal of battery. Perfect for apartment, dormitory or hotel applications.

The compact, low profile design complements any décor. Battery installation and removal can occur while the unit is mounted to the ceiling or wall via the hinged cover. When voltage drops to a pre-set warning level, the horn will “chirp” approximately once per minute to indicate a fresh battery is needed. To insure the battery is always replaced properly, the cover is designed to resist closing when the battery is missing. Designed for wall or ceiling mounting. Includes mounting anchors and screws.

Highlighted Features:

  • HIGHEST QUALITY, most accurate electrochemical co sensor technology
  • CONVENIENT, end of life chirping signal
  • HELPFUL, 2 silence features that silence both alarm and low-battery chirp
  • FEATURES, 9-Volt Battery and all necessary mounting hardware
  • Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety
  • Electrochemical CO Sensor is the most accurate technology available
  • Two Silence Features Silence Low Battery Chirp For up to 8 Hours

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8. Klein Tools ET110 CO Meter, Carbon Monoxide Tester and Detector

Klein Tools ET110 CO Meter, Carbon Monoxide Tester and Detector

The ET110 CO Detector is an easy-to-use meter that detects and measures concentration levels of carbon monoxide (ppm) and temperature (Fahrenheit/Celsius), making it the perfect choice for HVAC professionals. Features backlit LCD screen, warning indicator light, audible and visual alarms and multiple function buttons. Includes carrying pouch and 4xAAA batteries.

Carbon Monoxide Tester detects and measures CO gas concentration. Backlit display with CO measurements from 0 – 1000 ppm. Carbon Monoxide Meter with audible and visual alarms. Auto-power off after 20 minutes of no usage helps conserve battery life. Includes carrying pouch and 4xAAA batteries.

Meter is NOT intended for use as personal protection equipment. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can.

Klein isn’t just the name of our company, it’s also our family name. And since we’re an American company that’s family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn’t just make great products, we make great products that stand up to the demands of the professionals who use them every day … Since 1857.

Highlighted Features:

  • Easy-to-use CO meter detects and measures concentration levels of carbon monoxide gas
  • Portable CO detector with user protection and short-term exposure limit (STEL) alarm
  • Low level alarm (35 ppm) and high level alarm (200 ppm)
  • Audible and visual alarms
  • Backlit display with CO measurements (0 to 1000 ppm) and temperature (Farenheit and Celcius)
  • Auto-power off after 20 minutes of no usage helps conserve battery life
  • Includes carrying pouch and 4xAAA batteries

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9. Car, Vehicle, Aircraft Carbon Monoxide CO Detector

Car, Vehicle, Aircraft Carbon Monoxide CO Detector

The original FORENSICS DETECTORS vehicle and aircraft CO gas detector, made with HIGH-QUALITY Japanese sensor technology for maximum protection. Low level alarming to prevent CO exposure from exhaust leaks or polluted air entering the airplane or vehicle. Have peace of mind and take preventative care to avoid headaches, nausea, and fatigue. Regular CO alarms for the home are too slow, alarming in 60 to 240 minutes over 70 ppm – allowing fatigue and drowsiness to lead to accidents. The FORENSICS CO detector has been tested and confirmed at high altitudes for aircraft reliability.

Highlighted Features:

  • 🚗 Exhaust leaks in vehicles (i.e. SUVs, aircraft, school buses, trucks & fleet vehicles that triggers headaches, nausea & driver fatigue.
  • 🔬CO low-level alarm at 9ppm & 25ppm alarms WHO, EPA, ASHRAE, OSHA, NIOSH CO recommended exposure levels.
  • 🔔 Alarms at >9ppm @ 60 secs, compared to home CO detectors that only alarm >70ppm @ 60-240 minutes. Bright RED LED and buzzer alarms.
  • 👫 Continuous 8-12 month operation with same batteries. Easy one button operation. Small form factor (2oz), 3M stick-on mount.
  • 🕵️ TRUST: ** 1 year limited warranty ** Arrives factory calibrated ** 100% product test and verification in the USA * Best Japanese CO sensor ** 100% quality guaranteed **

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10. Carbon Monoxide Detection, CO Detector, CO Alarm

Carbon Monoxide Detection, CO Detector, CO Alarm

If you have any problems about the products, please contact us at the first time and our friendly customer service team will respond to you as soon as possible.

This carbon monoxide alarm is designed to detect carbon monoxide gas. It is Not designed for Smoke detection or ANY Other GAS detection. Before installing the Carbon Monoxide Detector, the batteries must be removed, stripped of their plastic jackets and then reinserted in the Carbon Monoxide Detector.

The CO Detector needs to be tested weekly! If you have any questions about the CO Detector, please contact us at the first time and our friendly customer service team will respond to you as soon as possible.

Highlighted Features:

  • ◆  Portable and easy installation. Precise electro-optical sensor, high consistency and stability, move, or in the same place for that. Loud enough and sounds good.
  • ◆  With 3 digits LCD displayer is optional, And Loud 85 decibel alarm with LED Flash While in the Alarm Mode for the life-saving safety, protect the family from carbon monoxide.
  • ◆  When a dangerous level of carbon monoxide is detected the red LED will flashes and a loud alarm pattern will sound–Loud 85 decibel alarm with LED Flash.
  • ◆  Operated by 3 * 1.5V AA batteries (not included), The alarm sound pattern is 4 beeps every 5seconds for the first 4 minutes. In 4 minutes, it will change to 4 beeps ever minute to save the battery.
  • ◆ 50ppm, alert within 60 to 90 minutes; 100ppm, alert within 10 to 40 minutes; 300ppm, alert within 3 minutes. Note: When you test the detector, please do not use gas blow the hole directly.

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