The Best Smoke & Carbon Monoxide Detectors 2024

1. Eton Blackout Buddy Carbon Monoxide and Natural Gas Alarm

Eton Carbon Monoxide Alarm; Blackout Buddy; Wired Connectivity; White Color

With the Eton Wi-Fi Blackout Buddy Carbon Monoxide and Natural Gas Alarm, you're always on alert. Designed to keep you safe at all times, this 2-in-1 alarm provides reliable protection against carbon monoxide (CO) and natural gas. Simply plug it in with quick-and-easy single installation for double the protection with no wiring required. Designed to deliver peace of mind while you're at home or away, the smart alarm connects to your Wi-Fi network and will blast an audible alarm as well as send push notifications to your phone if dangerous conditions are detected. It works with Amazon Alexa and Google Assistant for seamless integration with your smart home hub. A versatile choice, the Blackout Buddy CO and natural gas alarm features an easy-to-read digital display that shows the PPM level of CO or gas when the alarm is active. It has an Infinite Color nightlight that you can control either with the touch of a button or the Eton Smart App. This light also serves as an automatic emergency power failure flashlight that will light your path in case of emergency. This compact, 120-volt AC alarm with backup battery is suitable for houses, apartments and mobile homes. The Eton Blackout Buddy NCNCTCMBO-AG is ETL Certified to UL2034 CO standards and UL1484 standards for Natural Gas (Methane) detection.

2. First Alert - Basic Smoke Alarm - White

Connects to compatible devices via 3G, 4G, 4G LTE or Bluetooth; Split-Spectrum, ionization and photoelectric sensors; Nest app (download required); mounting hardware included

Safeguard what's important to you with this First Alert basic smoke alarm. It's battery-powered, so no complicated wiring is required, and it has a mute button for fast silencing of false alarms and easy battery testing. The EZ-Access battery door on this First Alert basic smoke alarm allows hassle-free maintenance.

3. First Alert 0827B Ionization Smoke Alarm with 10-Year Sealed Tamper-Proof Battery

This First Alert 0827B 10-Year Sealed Tamper Resistant Ionization Smoke Alarm features a long-life 3V lithium battery that effectively provides a full 10 years of protection, without requiring any battery change. A single test/silence button lets you quickly mute nuisance alarms from cooking smoke or shower steam. This smoke and fire alarm also includes an easy mounting bracket and alarm end-of-life indicator.

Help keep your family safe with this battery-operated smoke alarm; the 10-year lithium-ion battery offers continuous power for the life of the alarm and provides continued monitoring even if there's a power failure Alarm features an ionization sensor for smoke detection, which is effective in recognizing smoke from flaming fires such as paper and grease fires Battery-operated unit provides continuous monitoring even if there's a power failure: plus, it's easy to install Alarm also features loud 85-decibel alarm, easy mounting bracket, a single test/silence button, and an end-of-life signal so you know when to replace the unit To ensure complete protection make sure to place one on each level of your home and in each bedroom 10-year limited warranty; rigorously tested to meet UL standards

4. First Alert - Smoke and Carbon Monoxide Alarm - Works with Ring - White

Connects to compatible devices via 3G, 4G, 4G LTE or Bluetooth; Split-Spectrum, ionization and photoelectric sensors; Nest app (download required); mounting hardware included

First Alert ZCOMBO is a state-of-the-art wireless combination smoke and CO alarm designed to provide early warning of a fire or CO. It features a fully insect screened Photoelectric smoke sensing chamber and an electrochemical carbon monoxide sensor, an 85dB horn, a supervised 3V (2 AA batteries) power supply, utilizes one test button to setup, test and silence. This combination alarm will operate with 3rd party, certified Z-Wave devices enabled with the First Alert protocol and the basic command class required by all Z-Wave devices. First Alert ZCOMBO also includes the Smart Start feature which allows a faster and more intuitive connection of device to hub and on-boarding via use of QR code scan located on device. By the requirements of the Device Class spec, this command class does not have to be mapped to any particular functionality for this device. The alarm supports one association group with up to 1 node and sends its alarms to that group. The alarm supports configuration parameter #1, which has a size of 1, a default value of 0, and when set to 1 causes the device to send double alarm messages. Upon the detection of smoke or CO conditions, the alarm reports smoke and or CO detected to the controller. The device shall send the applicable message when the conditions are cleared. These notifications must be wrapped in the Supervision CC. The following notifications must be supported. The alarm sends a “Heartbeat” signal to hub periodically to confirm operability. It also features tamper resistant locking pins that lock alarm to the mounting bracket and battery drawer to prevent removal of battery or alarm. Designed for wall or ceiling mounting. Includes mounting anchors and screws.

5. First Alert - Dual-Sensor Smoke and Fire Alarm - White

Connects to compatible devices via 3G, 4G, 4G LTE or Bluetooth; Split-Spectrum, ionization and photoelectric sensors; Nest app (download required); mounting hardware included

Stay safe with this First Alert smoke and fire alarm. It uses ionization and photoelectric sensors to detect different types of fires, and its smart sensor can distinguish between real fires and false alarms to keep nuisance alerts to a minimum. This First Alert smoke and fire alarm has a low battery light to show when it's time for maintenance.

6. Plug-In CO Alarm w Digital Display

The First Alert CO615 Dual-Power Carbon Monoxide Plug-in Alarm alerts you to dangerous carbon monoxide levels. This carbon monoxide detector operates on a dual-power system with battery backup for continuous monitoring, even in the event of a power outage. The backlit digital screen tells you, at a glance, what the carbon monoxide and power levels are. The monitor also features a convenient test and silence button and an end-of-life timer that lets you know when it is time to replace the unit.

• Model number CO615 • Dual-power carbon monoxide alarm offers continuous monitoring of carbon monoxide levels • Plugs into any outlet & features battery backup • Backlit digital display shows readings for power & carbon monoxide • Single test/silence button for simple operation • End-of-life timer signals when the detector needs replacing • 7-year limited warranty • Includes 2 AA batteries

7. First Alert - Smoke Alarm with Escape Light - White

Connects to compatible devices via 3G, 4G, 4G LTE or Bluetooth; Split-Spectrum, ionization and photoelectric sensors; Nest app (download required); mounting hardware included

Guide your loved ones safely out of harm's way with this First Alert Escape Light smoke and fire alarm. Onboard illumination shows the path out if the worst happens, and an ionization sensor picks up the earliest signs of flames. The easy-access door on this First Alert Escape Light smoke and fire alarm makes maintenance easy.

8. Eve - Room Indoor Air Quality Monitor - Silver

10-year sealed lithium battery; ionization smoke sensor; alarm status LED indicator; test/silence button

Keep your home's indoor air quality clean and healthy with Eve Room. The award winning indoor air sensor with Apple HomeKit technology measures air quality (VOC), temperature, and humidity levels in your home. Detect harmful VOC levels caused by everyday items, and track when indoor air quality drops. You can then ventilate in good time, and adopt healthy habits by following the history in the Eve app. Eve Room joins your Thread network automatically and is Apple HomeKit enabled for outstanding ease of use with iPhone, iPad, and Apple Watch. Enjoy the freedom to place the wireless indoor air sensor wherever you like - you can recharge the accessory via USB, and control Eve Room directly without any need for a bridge. And the best thing about all Eve accessories is how they protect your privacy: Eve does not harvest your personal data and there is no Eve cloud, so your data won't get exposed.

9. First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display

Monitor your house for dangerous levels of methane, propane, and carbon monoxide with the First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display. This explosive gas and CO alarm detects the presence of combustible gases propane and methane and alerts you with a loud 85-decibel alarm. It also comes equipped with an electrochemical CO sensor that accurately detects carbon monoxide leaks from faulty fuel-burning appliances, blocked chimneys, and a variety of other sources. Designed for easy setup, this explosive gas and CO detector plugs into any AC outlet with no additional mounting hardware needed. The alarm can be configured to work with almost any standard household remote control (not included), so you can remotely silence nuisance alarms with the push of a button. The backlit digital display shows current and peak levels, allowing you to easily review the alarm's readings. For added safety, a backup battery helps keep the alarm functioning even in the event of a power outage. And thanks to a convenient test/silence button, you can easily check whether your alarm is functioning properly and mute false alarms.

Versatile CO alarm senses high levels of propane, natural/methane gas, and carbon monoxide Crisp backlit digital display allows you to view current and peak levels Can be remotely muted using almost any household remote control Plugs into any AC outlet for easy setup; backup battery powers unit in case of power outage Loud 85-decibel alarm can be heard easily

10. Eve Room Indoor Air Quality, Temperature, and Humidity Sensor, Black

Compact and crafted to perfection. Equipped with all-new precision sensor technology. Furnished with a customizable display encompassed by a sleek aluminum body. With Eve Room, your indoor conditions are just a glance away. And keeping your home healthy is that much simpler.

Air quality Temperature Humidity