Worldwide, carbon monoxide poisoning accounts for 4.6 deaths per million. This number has not decreased in the last 25 years despite the availability of carbon monoxide detectors. The potentially lethal gas is odorless and invisible to humans. Investing in one of the best carbon monoxide detector devices could save your family’s life.
Basic household appliances such as gas fireplaces, furnaces, boilers, water heaters, generators, central heating systems, cookers, blocked fireplace flues, and other devices can lead to a buildup of carbon monoxide in the home. A CO detector is necessary for any home – it lets you know if the gas is building up.
Every home should be outfitted with both smoke and carbon monoxide detectors to ensure safety. Below we will examine the best carbon monoxide detector for your needs.
Related: Best Smoke Detectors.
View the 10 Best Carbon Monoxide Detector, Below.
- First Alert CO400 Carbon Monoxide Detector
- Google Nest Smoke and Carbon Monoxide Detector
- Kidde KN-COB-LP2 Carbon Monoxide Alarm
- First Alert Z-Wave Smoke & Carbon Monoxide Alarm
- Nighthawk KN-COPP-3 Carbon Monoxide Detector
- First Alert BRK SC9120B Smoke and Carbon Detector
- Kidde KN-COP-DP2 AC Carbon Monoxide Detector Alarm
- First Alert CO615 Dual-Power Carbon Monoxide Detector
- FORENSICS DETECTORS Vehicle Carbon Monoxide Detector
- First Alert CO710 Carbon Monoxide Detector
1. First Alert CO400 Carbon Monoxide Detector
Ideal for Rapid Detection of Carbon Monoxide
The First Alert CO detector is battery-powered for continuous detection services. It can rapidly detect the presence of the gas no matter where you place it in the room. The alarm sequence will last from five to six seconds at an 85 decibel sound if the gas reaches a dangerous level.
First Alert is a trusted brand for home safety devices, especially carbon monoxide detectors. The brand has been around since 1958.
What We Liked About It: We particularly like the end-of-life signal chip, so there is no guessing when you need to replace the batteries.Check Price on Amazon ➞
2. Google Nest Smoke and Carbon Monoxide Detector
Best Smart Device for CO Detection
This smart home device is a smoke and carbon monoxide detector combo. The Google Nest alerts you with verbal warnings any time smoke or CO is detected in your home. Not only does the detector tell you when smoke, carbon monoxide, or smoldering occurs, but it can also let you know where the possible danger is located.
If you're not home, then the detector will send the alert to your phone. Its app, Silence, lets you turn off the smoke alarm using your phone if there's very little smoke or have the situation under control.
Every night, Nest tests the batteries to let you know the status of the monoxide detector before you go to bed. Without a doubt, the Google Nest Protect device is one of the most popular choices on the market - everyone loves smart home devices.
The Google Nest Protect device has a built-in night light. If you walk under the alarm at night, it will turn on a pathlight to help you see in low-light situations. This Nest Protect product is a leader. If you're researching smoke detectors and carbon monoxide detectors, then this one is a must-consider.
What We Liked About It: We love the nightly checks; it makes sure this smart home device functions safely and correctly.Check Price on Amazon ➞
3. Kidde KN-COB-LP2 Carbon Monoxide Alarm
Functions During a Power Outage
Keep your family safe with the Kidde Carbon Monoxide Detector. It's battery-powered and features LED lights that will function even in the event of a power failure. If carbon monoxide is detected, then the alarm will flash red and issue four audible beeps. When this carbon monoxide alarm is functioning correctly, the green light will flash every sixty seconds.
What We Liked About It: We like the fact that it depends on batteries, so it will still function in the event of a power outage.Check Price on Amazon ➞
4. First Alert Z-Wave Smoke & Carbon Monoxide Alarm
A Leading Smoke and Carbon Monoxide Combo
The First Alert works with Ring for complete compatibility. You'll receive real-time notifications via the Ring app if levels of carbon monoxide are detected in your home. The Z-Wave Plus with Smart Start makes this smart device faster and highly intuitive.
This carbon monoxide detector will also function with Samsung SmartThings and Nexia Home Intelligence connected with the Z-Wave Plus gateway hub. The Photoelectric smoke sensor sends out fewer false alarms, such as when you're cooking or taking a steamy shower.
When monoxide or smoke is detected, the alarm will issue an 85-decibel horn. There is a single test and silence button. You can access the battery door via the side; it features pins that lock the alarm in place. Every house needs smoke and CO detectors to ensure safety in the home.
What We Liked About It: We liked how this device attaches easily to the wall with pins. The mounting is very basic and easy to carry out.Check Price on Amazon ➞
5. Nighthawk KN-COPP-3 Carbon Monoxide Detector
AC Plug-With Battery Backup
The Kiddie Nighthawk has an AC plug-in with battery backup. You don't have to worry about frequently replacing batteries. The AC backup makes it one of the best carbon monoxide detectors on the market. You can effortlessly plug the device into any AC wall outlet. The 9V backup gives you even greater peace of mind.
The Kiddie Nighthawk device has ionization sending technology to detect even low levels of carbon monoxide quickly. When CO is detected, the alarm will issue four beeps, and a number reading will appear on the device's screen, letting you know the level of carbon dioxide detected in the air. The number is stored in the device's memory to act as a comparison.
If low battery power is detected, the device will issue a single alarm every minute with an LB appearing on the screen.
We Liked About It: We liked the AC plug-in capabilities to help conserve battery life and battery backup in the event of a power failure.Check Price on Amazon ➞
6. First Alert BRK SC9120B Smoke and Carbon Detector
Simple to Use with Battery and Smoke Detection
The First Alert is a hardwired smoke and carbon monoxide detector that features a battery backup, remaining ready to monitor even during a power failure. The unit functions with an electrochemical carbon monoxide sending and ionization sensor for smoke detection. This device is one of the most popular because it's easy to use.
The indicator lights on the front of the unit let you know if smoke or carbon monoxide is detected. Then, it will issue a loud 85-decibel siren. This carbon monoxide detector is simple to use. Testing it is easy; you press the device's side button to make sure it's detecting dangerous levels of CO.
The tamper-resistant locking brackets and universal mounting brackets protect the device from children.
We Liked About It: We liked the fact that it's hardwired and boasts battery backup in the event of power failure.Check Price on Amazon ➞
7. Kidde KN-COP-DP2 AC Carbon Monoxide Detector Alarm
Best Basic Device
The Kiddie Carbon Monoxide Detector might not be the fanciest option on the market. Still, it works with both AC power and batteries, so your home is always protected against carbon monoxide. You don't have to worry about the alarm failing you during an outage as long as you have battery backup. If the batteries start to deplete, there is a replacement alert. The device will chirp every two to 30 seconds.
Ideally, you should place one Kiddie carbon monoxide detector in each room. If the gas is detected, then the unit will beep. A chirp every two seconds indicates that the detector needs a new battery. The Kiddie device comes with a full UL 10 year warranty and is guaranteed to meet all of the uL requirements until 2034.
What We Liked About It: We liked the dual AC and battery option along with the battery replacement alert that you lets you know when you need to replace the batteries in the device if they are becoming depleted.Check Price on Amazon ➞
8. First Alert CO615 Dual-Power Carbon Monoxide Detector
Plug-In Carbon Monoxide Device
This carbon monoxide detector works to detect CO levels by plugging it into any standard outlet. In addition, it boasts a battery backup for ongoing monitoring even if a power failure should occur. The display on the device will show you the peak level of CO detected and measured. When CO is found, a loud 85-decibel alarm sounds, letting you know it has reached dangerously high levels.
We Liked About It: We liked that this device works on a standard plug-in but still features a battery backup.Check Price on Amazon ➞
9. FORENSICS DETECTORS Vehicle Carbon Monoxide Detector
The Best Overall On-The-Go Carbon Monoxide Detection Device
The Forensics Detector detects CO in vehicles such as SUVs, school buses, trucks, and aircraft. It will sound an alarm when it detects CO levels down to 9ppm and 25ppm. It will signal with a red LED light along with a buzzer alarm.
What We Liked About It: We appreciated its small and portable size so you can take it in a vehicle when needed.Check Price on Amazon ➞
10. First Alert CO710 Carbon Monoxide Detector
The display on the CO710 monitor is easy to ready. It measures not only the CO concentration but also the indoor temperature. The display also shows the highest concentration of carbon monoxide.
This device features a 10-year lithium battery that provides continuous peace of mind because of ongoing protection. The backlit display is easy to read, even in low-light situations. Also, when CO is detected, it sends forth an 85-decibel alert.
What We Liked About It: When functioning correctly, the 10-year lithium battery is a nice perk.Check Price on Amazon ➞
Carbon Monoxide Buyer’s Guide
When hunting for the best carbon monoxide detectors, you’ll find plenty of devices that will help keep your family safe from dangerous levels of carbon dioxide. Many are a combination of smoke and CO detectors.
Most CO detectors are easy to install, and many offer both AC and battery operation. Battery-operated carbon monoxide detectors are nice, but you’ll worry about the batteries losing juice. Some have a 10-year lithium battery, and others are plug-in, so they operate with both electricity and batteries.
Whichever device you pick, they are all easy to use and boast either a beep alarm or voice alarm to let your family know when they are in danger.
CO Detector FAQ
Below are a few FAQs about carbon monoxide and what to do if your device detects a high CO level.
What are the Symptoms of CO Poisoning?
As mentioned, CO has no odor and is hard to detect without a smart device or monitor. If you have CO positioning, you could exhibit flu-like symptoms such as headaches, vomiting, dizziness, fainting, or confusion.
What to do if you Suspect High CO Levels?
If your digital CO device tells you there are high levels of CO in the home, you need to evacuate as soon as possible. Once you are out of the house, call 911. Remember, CO poisoning doesn’t develop instantly. It can take time to exhibit symptoms – carbon monoxide poisoning doesn’t always hit suddenly and doesn’t leave your system quickly, so it’s a good idea to seek medical attention as soon as you can. Carbon monoxide poisoning is serious and can lead to death if not treated.
How Does a Carbon Monoxide Detector Work?
A carbon dioxide detector works in much the same fashion as a smoke detector. The device uses sensors.
CO detectors have the following sensors:
- Electrochemical sensors: These sensors use electrodes placed in chemical solutions to sense the presence of carbon monoxide and sound the alarm
- Metal oxide semiconductor: This form of CO detector uses silica chips to find CO and then sends an electrical trigger that works by triggering an alarm.
- Biometric detectors: This carbon monoxide alarm uses color-changing gels that rapidly absorb carbon monoxide detected in the atmosphere. After absorption, an alarm is triggered.
Where is the Best Place to Install a Carbon Monoxide Detector?
You’ll want to install carbon monoxide detectors in each bedroom of the home. In addition, place one in the garage, basement, and kitchen.
Carbon Monoxide Detectors: Maintenance
Carbon monoxide detectors usually last an average of five years, but this varies by model. Smart home models tend to last longer.
These devices require very little maintenance. Wipe them down to keep them clean of any debris or dust buildup. Each month you should carry out a monthly check. Press the test button to make sure the alarm works.
Did you know?
People are not only in danger from large amounts of carbon monoxide. Small amounts over long periods can also poison you. Digital displays allow you to monitor how much is consistently in the air of your house.
Carbon monoxide detectors are must-have safety devices. They’re affordable and highly accurate. A good CO detector can truly mean the difference between life and death. Buy smoke and CO detectors to provide your home and loved ones with the protection they deserve.