• Top 10 Best Smoke and Carbon Monoxide Detectors in 2020 1
  • Top 10 Best Smoke and Carbon Monoxide Detectors in 2020 2
  • Top 10 Best Smoke and Carbon Monoxide Detectors in 2020 3
  • Top 10 Best Smoke and Carbon Monoxide Detectors in 2020 4
  • Top 10 Best Smoke and Carbon Monoxide Detectors in 2020 5

Top 10 Best Smoke and Carbon Monoxide Detectors in 2020

Are you looking for a safety and security system that goes beyond anti-theft measures? Smoke and carbon monoxide detectors are often overlooked but equally important! Nowadays, you can get these two essential features in one device. It's vital to get a reliable smoke and carbon monoxide detector for your own peace of mind and safety.


So, we searched the internet to find the best models available. Our top pick is First Alert's Smoke Detector and Carbon Monoxide Alarm. This product uses photoelectric and electrochemical sensors to quickly detect fires and dangerous carbon monoxide levels. Be sure to check out the rest of our top 10 products! We've also created a buying guide to get you acquainted with the types and features of these two-in-one alarms. 

  • Last updated: 12-09-2020
  • 109 views
Table of Contents

Top 10 Best Smoke and Carbon Monoxide Detectors

Here are Amazon's most highly-reviewed smoke and carbon monoxide detectors with varying power sources, sensors, and features. Plus, they all met UL safety standards!

1

First AlertSmoke Detector and Carbon Monoxide Detector Alarm

$24.53

Power sourceBattery, 2AA
SensorPhotoelectric
UL-listedYes
FeaturesSingle test/silence button
2

GoogleNest Protect

S3003LWES

$111.00

Power sourceBattery, 6 AA
SensorIonization and photoelectric
UL-listedYes
FeaturesSmartphone alerts, notification updates, voice alarm
3

KiddeSmoke Alarm

KN-COSM-IBA

$33.93

Power sourceHard-wired with 2 AA batteries for backup
SensorIonization
UL-listedYes
FeaturesLED indicators, voice alarm, interconnectable
4

X-SenseSmoke and Carbon Monoxide Detector

SC01

$39.99

Power sourceBattery, 10-year lithium
SensorPhotoelectric
UL-listedYes
FeaturesLCD display, LED indicators
5

First AlertHardwired Smoke and Carbon Monoxide (CO) Detector

6 pack

$169.74

Power sourceHard-wired with 2 AA batteries for backup
SensorIonization
UL-listedYes
FeaturesSingle test/silence button, interconnectable to other First Alert detectors
6

KiddeSmoke and Carbon Monoxide Alarm

P4010DCSCO-W

$47.88

Power sourceBattery, 10-year lithium
SensorPhotoelectric
UL-listedYes
FeaturesLED indicators, voice alarm, bug screen
7

MosuoCombination Smoke And Carbon Monoxide Detector

$37.98

Power sourceBattery, 10-year lithium
SensorPhotoelectric
UL-listedYes
FeaturesSingle test/silence button, fire-retardant frame
8

vitowellSmoke and Carbon Monoxide Alarm Detector

2 pack

$31.99

Power sourceBattery, 10-year lithium
SensorPhotoelectric
UL-listedYes
FeaturesVoice alarm, LED indicators
9

ArikonSmoke and Carbon Monoxide Detector Combo

$18.48

Power sourceBattery, 3AA
SensorPhotoelectric
UL-listedYes
FeaturesLCD display, LED indicators, voice alarm
10

TJTFJSSmoke and Carbon Monoxide Detector

$15.99

Power sourceBattery, 3AA
SensorPhotoelectric
UL-listedYes
FeaturesLCD display, LED indicators

Compare the Best Smoke and Carbon Monoxide Detectors

Image
1
First Alert Smoke Detector and Carbon Monoxide Detector Alarm 1

First Alert

2
Google Nest Protect 1

Google

3
Kidde Smoke Alarm 1

Kidde

4
X-Sense Smoke and Carbon Monoxide Detector 1

X-Sense

5
First Alert Hardwired Smoke and Carbon Monoxide (CO) Detector  1

First Alert

6
Kidde Smoke and Carbon Monoxide Alarm 1

Kidde

7
Mosuo Combination Smoke And Carbon Monoxide Detector 1

Mosuo

8
vitowell Smoke and Carbon Monoxide Alarm Detector 1

vitowell

9
Arikon Smoke and Carbon Monoxide Detector Combo 1

Arikon

10
TJTFJS Smoke and Carbon Monoxide Detector 1

TJTFJS

Name

Smoke Detector and Carbon Monoxide Detector Alarm

Nest Protect

Smoke Alarm

Smoke and Carbon Monoxide Detector

Hardwired Smoke and Carbon Monoxide (CO) Detector

Smoke and Carbon Monoxide Alarm

Combination Smoke And Carbon Monoxide Detector

Smoke and Carbon Monoxide Alarm Detector

Smoke and Carbon Monoxide Detector Combo

Smoke and Carbon Monoxide Detector

Features

A Detector That's Easy to Use and Install

A Detector for a Seamless Tech Ecosystem

A Straightforward and Interconnectable Detector

Detector With a Long Life

An Interconnectable Hardwired Alarm Set

A Wire-Free Interconnectable Alarm System

A Detector That's Easy to Install Alone

Unconstructive Alarm With Easy Installation and Operation

A Detector That Notifies Low Battery Status

A Detector With 360-Degree Vents

Price$24.53$111.00$33.93$39.99$169.74$47.88$37.98$31.99$18.48$15.99
Power sourceBattery, 2AABattery, 6 AAHard-wired with 2 AA batteries for backupBattery, 10-year lithiumHard-wired with 2 AA batteries for backupBattery, 10-year lithiumBattery, 10-year lithiumBattery, 10-year lithiumBattery, 3AABattery, 3AA
SensorPhotoelectricIonization and photoelectricIonizationPhotoelectricIonizationPhotoelectricPhotoelectricPhotoelectricPhotoelectricPhotoelectric
UL-listedYesYesYesYesYesYesYesYesYesYes
FeaturesSingle test/silence buttonSmartphone alerts, notification updates, voice alarmLED indicators, voice alarm, interconnectableLCD display, LED indicatorsSingle test/silence button, interconnectable to other First Alert detectorsLED indicators, voice alarm, bug screenSingle test/silence button, fire-retardant frameVoice alarm, LED indicatorsLCD display, LED indicators, voice alarmLCD display, LED indicators
Link

How to Choose a Smoke and Carbon Monoxide Detector - Buying Guide

Given that you are considering something so crucial for your home's safety, deciding on a particular smoke and CO detector requires extra effort. Our buying guide will inform you about common alarm types and features. 

Double-Check With Existing Laws

Double-Check With Existing Laws

Existing state or town regulations regarding smoke and CO detectors will significantly affect your decision-making process. These rules will guide you on how many detectors to get, like if it's a per floor or per room basis. They will also talk about the detectors' placement and type.


Some states have specific regulations on the power source of the detector, limiting your options further. The power sources would be explained in detail later on.


The following link provides a quick rundown of existing legislation on smoke and CO detectors. Another way to clarify is to contact your state or local housing department.

Choose Between a Hard-Wired, Battery, or Plug-in Power Sources

Choose Between a Hard-Wired, Battery, or Plug-in Power Sources

There are generally three types of power sources for smoke and CO detectors: hard-wired, battery-operated, and plug-in. Hard-wired alarms are connected to a house's electrical wiring and require professional installation. These usually come equipped with backup batteries, which kick in during power failure.


Another type of detector uses batteries. The battery life varies across models; some need annual replacement while others contain sealed lithium batteries that last only for the device's lifetime. 

Choose Between a Hard-Wired, Battery, or Plug-in Power Sources

Lastly, you have alarms that are plugged directly into an outlet. While these don't require batteries or professional installation, there is a long distance between the outlet and device for the wire to travel. 


Non-hardwired alarms are generally easier to install and come with the hardware needed to mount the device on the ceiling or wall. A drill is often needed, though. 


Some states require battery-operated detectors to have a 10-year capacity. Meanwhile, newer constructions are governed to install only hard-wired alarms. We recommend looking over state laws and regulations as this could also affect the resell value of your home, if applicable.

Ensure That the Detector Has UL Certification

Ensure That the Detector Has UL Certification

The next important consideration is the device's quality, namely, if it was manufactured under the Underwriters Laboratories (UL) Standard. We recommend going for a model with as recent a manufacture date as possible since these devices tend to lose their sensor capabilities over time.


In December of 2019, the UL standard for smoke alarms was updated, saying that manufacturers needed to make their smoke detectors distinguish between cooking smoke and smoldering fires. The upgrade's deadline was May 2020; therefore, recently manufactured detectors should differentiate between the two. 


The UL update also included that all detectors released after May 2020 need to consist of smoke and CO detection and not just traditional single sensor type. This can help ensure a particular model is "freshly made" since it contains both features. The product description should include these details.

Consider Purchasing a Smart Detector

When talking about an alarm's features, think about your preferences. For example, do you prefer voice alerts or a beeping sound? Also, a "smart" alarm will require more setting up but can create a seamless security system. 

Look Through Hardware Features Like Indicators

Look Through Hardware Features Like Indicators

Carbon Monoxide is a colorless, odorless, and tasteless gas that can kill. How then can you address this risk? A CO detector's main task is to gauge the current CO's levels in a room and inform those living on the premises. 


A smoke and CO detector with LED indicators or LCD displays will quickly tell you the CO concentration measured in parts per million (ppm). When CO levels increase and remain above 70 ppm, those in the room could experience fatigue, headaches, and nausea. 


Sustained CO concentrations above 150 to 200 ppm can lead to disorientation, unconsciousness, even death.

Look Through Hardware Features Like Indicators

A detector with a wide range of CO detection is highly recommended. For example, some models can detect CO concentration within a 30 to 999 ppm range and have varying indicator lights to inform homeowners. You can also get detectors that broadcast CO levels through audio announcements if the blinking lights go unnoticed. 


Smart detectors often connect to WiFi and can send you smartphone alerts for further safety precautions. As for the general alarm, we recommend a siren that's over 80 decibels to ensure everyone is notified of the potential risk. Other voice or sound alerts that indicate low battery or another status are often not as loud.

Interconnect Your Alarm System

Interconnect Your Alarm System

If you have a bigger home with multiple levels, an interconnected detector system ensures maximum safety. The notification will come from all detectors and not just the one picking up the smoke or high CO concentration, notifying you promptly wherever you are.


One thing to note with interconnected alarms is that they are usually only compatible with detectors of the same brand or model. So if you have existing detectors installed, this might limit your options. 

Interconnect Your Alarm System

You can also choose a set of two or three detectors, which quite a few manufacturers offer. Some even include as many as 12 alarms in one purchase, making it easy to outfit your entire home.


In case your house is left unattended for extended periods, you can also look at the detectors' capability to connect to your security system. Some can call you or automatically notify the police or fire department when dangerous smoke or CO levels are picked up.

Go for Smoke Detection Through Multiple Sensors

Go for Smoke Detection Through Multiple Sensors

When it comes to fire detection, a product with multiple sensors is best. There are two main types of smoke alarm sensors: ionization or photoelectric. 


The first is for detecting small flaming fire particles, usually those that flare, explode, and are fast to occur. Photoelectric sensors, on the other hand, respond faster to smoldering, smoky fires. Dual-sensor smoke detectors ensure that both types of fires are promptly detected.

Where to Install a Smoke and CO Detector

Where to Install a Smoke and CO Detector

Here is a quick rundown on the typical areas smoke and CO alarms are installed to ensure optimal safety: on each floor of the house, in each bedroom, in the living room, at least 10 feet away from a stove or furnace, in hallways close to sleeping areas, at the top of stairways, and the bottom of a stairway leading to a basement.


The device should be mounted on the ceiling with a minimum six-inch gap from the wall or on the wall with a minimum six-inch distance from the ceiling.


We recommend reading the installation manual thoroughly if a particular model has requirements regarding the distance from stoves, furnaces, water heaters, and other appliances.

Improve Safety With These Devices

Improve Safety With These Devices

You can never be too sure when it comes to safety! Here are a few more devices that offer heightened security for everyone in the family. 

Summary

Smoke and carbon monoxide alarms have been designed to replace outdated detectors while offering the convenience of two functions in one product. Whether it's individual alarms or an integrated system, smoke and CO detectors are a must-have in every home. 


Author: Hana Otsuka


Related Articles

Popular Articles

  • Top 10 Best Shower Heads for Low Pressure in 2021 (Speakman, AquaDance, and More)
    Top 10 Best Shower Heads for Low Pressure in 2021 (Speakman, AquaDance, and More)
    Nothing can beat a refreshing shower after a long, tiring day at work. But low water pressure can spoil the fun and turn your shower into a dribbling nightmare. But don't stress out too much! A shower head designed especially for low pressure can help you boost your water pressure and breathe new life into your meager flow. Many products also come with a variety of settings, from massage to a powerful spray, to give you a luxurious spa-like experience. While searching for a good shower head online, you might feel overwhelmed with all the options that sound the same. Our handy buying guide will give you some tips for picking out the right product. We've also narrowed down the top ten products that might pique your interests. Among them, Aqua Elegante's Shower Head for Low Flow Showers truly amazed us with its sleek design and various spray settings that allow you to change your experience whenever you like. Curious about other products? Keep scrolling! 
    Housing equipment and renovation
    322 views
  • Top 10 Best Eco-Friendly Lightbulbs in 2020 (Philips, Sunco, and More)
    Top 10 Best Eco-Friendly Lightbulbs in 2020 (Philips, Sunco, and More)
    One of the easiest ways to slowly care more for the environment is by replacing your lightbulbs with more eco-friendly options as they go out. When compared to more modern options, traditional incandescent lightbulbs are short-lived and very energy inefficient, so it makes sense to switch over not just for the environment but also for your wallet.There are a few different options when it comes to eco-friendly lightbulbs, and if you don’t know where to start, it may feel a little intimidating. In this guide, we’ll go over the things you should look for when choosing the right lightbulb for you. We’ve also got a list of our 10 favorites to help you get started, including TCP's 9W LED Light Bulbs.
    Housing equipment and renovation
    1,769 views
  • Top 10 Best Shower Heads in 2021 (Invigorated Water and More)
    Top 10 Best Shower Heads in 2021 (Invigorated Water and More)
    Looking to increase your water supply or change the water flow while you shower? Changing your shower head could do the trick! These bathroom fixtures can save, filter, and purify water. You can even get ones that boost skin condition and massage the scalp. Hydroluxe's Handheld Shower Head & Rain Shower Combo, for example, lets you choose among five full water flow settings while keeping the perfect water pressure. We've picked out nine more shower heads worth considering and included a buying guide to get you acquainted on the aspects that make a particular shower head the best buy.
    Housing equipment and renovation
    494 views
  • Top 10 Best Extendable Shower Heads in 2021 (Moen, AquaBliss, and More)
    Top 10 Best Extendable Shower Heads in 2021 (Moen, AquaBliss, and More)
    A fixed shower head is affordable and easy to install but doesn't allow you to direct the water stream right where you need it. So if you often find soaps in hard-to-reach spots, it may be time to switch over to an extendable shower head! It's a great choice for bathing kids or pets as well. No more struggles to keep your dog from running away or to wash your kid's hair without getting soap in their face! So, have you heard about AquaBliss' TheraSpa Hand Shower? One of our top 10 best products, this product highly impressed us with its sleek design and durable material. It also boasted an extra-long hose of 78 inches to help you reach all the spots in your shower. If you're new to extendable shower heads, you can check out our buying guide at the end to find out some tips that will make your selection process a bit easier. 
    Housing equipment and renovation
    280 views
  • Top 10 Best Wireless Video Doorbells in 2020 (Ring, eufy, and More)
    Top 10 Best Wireless Video Doorbells in 2020 (Ring, eufy, and More)
    Whether you don't want to miss a delivery, have home security concerns, or just like to screen your visitors before answering the door, a video doorbell can be an essential purchase! Wireless video doorbells are becoming increasingly popular due to their long battery life and easy installation. That's why we looked at the wireless video doorbells currently available and carefully curated a list of the best products available. We found the Wireless Video Doorbell by Eufy to be the best! If offers high-quality 2K video, local storage, and no additional costs. Read on for the rest of our top ten favorite products, and check out our buying guide for useful information to consider before you buy.
    Housing equipment and renovation
    290 views
  • Top 10 Best Solar Panels to Buy Online 2020
    Top 10 Best Solar Panels to Buy Online 2020
    Many people who want to contribute to the environment have started shifting their energy systems towards solar power. Furthermore, using solar energy can save you a great amount of money in the long run! Although the implementation cost for solar power seems to be high at first, you will receive in return a stable, low-cost source of energy. However, choosing a solar panel--the first step of implementing a solar energy system--is not an easy task. There are many brands from all over the world, and you may get confused about which product is suitable for your purpose. To save you time, we combined a list of top 10 best products and a buying guide that consists of tips on buying solar panels. 
    Housing equipment and renovation
    386 views
  • Popular Item Lists

    Search by Category