10 Best Ring Smoke And Carbon Monoxide Detector of 2025

Tested and Reviewed: Top 10 Ring Smoke And Carbon Monoxide Detector deals with expert ratings from 8.1 to a perfect 10

July 2025 Edition

Editor's Choice

9.7

Save 15%

FIRST ALERT

First Alert Battery Powered Z-Wave Smoke Detector & Carbon Monoxide Alarm, Works with Ring Alarm Base Station, 2nd Generation

15% OffFree Shipping

Editor's bottom line:

“This ring smoke and carbon monoxide detector is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

The front cover design of the alarm may vary but product function remains the same
This device is certified to work with Ring; Requires Ring Alarm Base Station to Work with Ring. Enjoy improved compatibility, easier setup and a seamless in-app experience.Temperature Range: 40°F (4°C) to 100°F (38°C). Humidity Range: 10% to 95% relative humidity (RH)
Receive real-time notifications in the Ring App when smoke or carbon monoxide is detected. Do not insert the batteries into your First Alert alarm until prompted by the Ring app
Certified to work with smart home systems such as Ring Alarm Base Station, Samsung SmartThings, and Nexia Home Intelligence when connected to a Z-Wave Plus gateway hub (sold separately; Not compatible with Wink or Onelink)
Help keep your family safe with this battery-powered smoke detector and carbon monoxide alarm; includes 2 AA batteries
The Z-Wave Plus with Smart Start feature allows a faster and more intuitive connection of device to hub and on-boarding via QR code scan located on device
Photoelectric smoke sensor helps reduce false alarms caused by cooking or shower steam
Includes an 85-decibel horn, single test/silence button, side access to a tamper-resistant battery door, and pins that lock the alarm to the mounting bracket

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Picked by 226 people today

9.5

Save 25%

X-Sense

X-Sense Combination Smoke and Carbon Monoxide Detector with Voice Alerts, Smoke Detector Carbon Monoxide Detector Combo with Replaceable Battery, XP0A-SR, 1-Pack

25% OffFree Shipping

Main Highlights

Please Note: XP0A-SR is a basic standalone unit; it does not support wireless interconnection, does not have Wi-Fi, and cannot be used with a base station;for Wi-Fi functionality, look for XP0A-MR
Talking Alarm: Immediately understand the danger thanks to a voice alert that sounds in conjunction with the siren; the built-in speaker delivers warnings specific to the detected danger type, such as "Warning! Smoke detected. Evacuate." or "Warning! Carbon monoxide detected. Move to fresh air."
2-in-1 Protection: Get full protection from a single alarmthe photoelectric and electrochemical CO sensors which work independently to instantly warn you of dangerous smoke or CO levels; keeps your family protected against 2 deadly threats with less hassle; peak CO concentration memory is supported and can be reset to "0"
10-Year Lifespan: Heat-resistant PC material and 10-year sensor life offer reliable performance for up to 10 years; the replaceable CR123A battery lasts up to 5 years
Handy voice alerts keep you easily and quickly informed of important information such as emergencies, battery status, faults and lifespan; understand whats going on without digging out the manual so you can take action quicker and keep your family safer
Sleek Design: Only 1.2 in (30 mm) thick, this ultra-thin alarm blends in anywhere; the 5.3 in (135 mm) diameter mounting bracket perfectly covers the hole left by your old alarm
Quick to Install: Quickly and easily install this smoke and carbon monoxide alarm on any wall or ceiling with the provided mounting kit

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9.5

Ring

Ring Alarm Smoke & Co Listener

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Main Highlights

With a Ring Protect subscription (sold separately), Ring Alarm Smoke and CO Listener alerts you on your smart phone when your existing smoke and carbon monoxide detectors sound their alarms.
This device does not detect fire, smoke or carbon monoxide. For best performance, use with detectors that are 10 years old or less and comply with all applicable standards.
Easy setup in minuteswithout tools or professional installation. Requires Ring Alarm Security System (sold separately).
With a Ring Protect subscription (sold separately), manage Ring Alarm Smoke and CO Listener and other Ring products through the Ring app.
Battery life 3 years max. Batteries are replaceable.

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9.2

Ring

Ring Flood Freeze

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Main Highlights

Ring Alarm Flood and Freeze Sensor protects your home from flood and water damage. Get alerts on your smart phone when water or low temperatures (below 40°F / 4.4°C) are detected.
Easy setup in minuteswithout tools or professional installation. Requires Ring Alarm Security System (sold separately).
See more. Know more. Protect more. - Record 24/7 on your eligible cameras, scroll back in time to rewatch what you missed, get alerts for people and package, and so much more with an compatible Ring Home subscription (sold separately).
Battery life 3 years max. Batteries are replaceable.

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9.0

Save 22%

X-Sense

X-Sense Smart Smoke Detector Carbon Monoxide Detector Combo with Replaceable Battery, Wi-Fi Smoke and Carbon Monoxide Detector with Real-Time App Notifications, SC07-WX, 1-Pack

22% OffFree Shipping

Main Highlights

Please Note: SC07-WX supports Wi-Fi; it does not support wireless interconnection and cannot be used with a base station; multiple SC07-WX units added to the app will operate independently and will not communicate with each other
Real-Time Notifications: Keep an eye on your home from anywhere and get immediate push notifications through the X-Sense Home Security app for alarms, low battery, faults, and more
Direct 2.4 GHz Wi-Fi Connection: The battery-powered smoke and carbon monoxide alarm connects directly to the X-Sense Home Security app via the 2.4 GHz Wi-Fi network, no base station required
Fast Fire Dispatch Within Just 3 Seconds: By subscribing to the (optional) Protect+ Premium subscription plan which provides 24/7 professional monitoring service, when an alarm is triggered, you will receive a message from the monitoring center within 3 seconds to verify the emergency. After the emergency is verified, a fire truck will be dispatched immediately
Decade-Long Safety with Precision Detection: This 2-in-1 alarm combines photoelectric smoke and Figaro electrochemical CO sensors, giving you the utmost safety and peace of mind; powered by replaceable battery, not AC hardwired
Device Sharing: With the X-Sense Home Security app, you can effortlessly share your devices with 12 family and friends, enabling them to monitor your home safety and receive crucial alerts

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8.8

X-Sense

X-Sense 10-Year Battery Combination Smoke Carbon Monoxide Alarm Detector with Large LCD Display (Standalone Model)

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Main Highlights

Please Note: SC07 is a basic standalone unit; it does not support wireless interconnection, does not have Wi-Fi, and cannot be used with a base station; for interconnection, search for SC07-W. For Wi-Fi functionality, look for SC07-WX or SC07-MR
2-in-1 Protection: The combination smoke and CO detector detects both smoke and carbon monoxide faster and more accurately using a photoelectric smoke sensor and an electrochemical CO sensor
10-Year Battery: The fire and CO alarm is built with a sealed lithium battery that provides 10 years of continuous power, saving you from changing batteries and power outage
Combination Alarm with CO Readings: When the alarm is triggered, the LCD will display the CO concentration and illuminate. In standby mode, the LCD turns off to ensure you are not disturbed
Simple Installation: Requires no rewiring; easy to mount this smoke and carbon monoxide alarm on any wall or ceiling with the included mounting bracket, screws, and anchor plugs
Informative LCD: Displays real-time CO levels from 30999 ppm (parts per million) taken from the surrounding air, as well as battery level and working status

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8.6

Ring

Ring Alarm Smoke and CO Listener with Ring Alarm Flood and Freeze Sensor

Main Highlights

This bundles contains Ring Alarm Smoke and CO Listener with a Ring Alarm Flood and Freeze Sensor.
Ring Alarm Smoke and CO Listener alerts you on your smart phone when your existing smoke and carbon monoxide detectors sound their alarms.
This device does not detect fire, smoke or carbon monoxide and is intended to work with UL listed smoke and CO detectors that are 10 years old or less.
Ring Alarm Flood and Freeze Sensor protects your home from flood and water damage. Get alerts on your smart phone when water or low temperatures (below 40°F / 4.4°C) are detected.
Easy setup in minuteswithout tools or professional installation. Requires Ring Alarm Security System (sold separately).
See more. Know more. Protect more. - Record 24/7 on your eligible cameras, scroll back in time to rewatch what you missed, get alerts for people and package, and so much more with an compatible Ring Home subscription (sold separately).
Battery life 3 years max. Batteries are replaceable.

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8.3

OLUNCLE

6 Packs, 2 in 1,Smoke Carbon Monoxide Detector,Carbon Monoxide Detectors/Smoke Alarm,85 dB Alarm,Large Screen Readout,Test Button,Battery Operated, Work State LED Flash,Easy Install

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Main Highlights

Comprehensive Protection: This smoke & carbon monoxide alarms combine the power of two important safety features in one device to protect your family from both smoke and carbon monoxide dangers
Reliable Sensor Technology: With photoelectric and electrochemical sensors, this smoke detector carbon monoxide detector combo ensures fast and reliable detection of smoke and CO
Visual and Audible Alerts: Featuring 3-color LED indicators and an 85 dB alarm, this detector ensures youre immediately alerted to potential dangers
Easy-to-Use and Maintain: The simple design allows for quick installation and minimal maintenance, ensuring continuous protection with ease
Ideal for Home and Office: Whether at home or in the office, this carbon monoxide detectors/smoke alarm provides dependable protection from smoke and CO risks

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Best Value

8.1

Save 40%

Ring

Like-New Ring Alarm 8-piece kit (2nd Gen) – home security system with optional 24/7 professional monitoring – Works with Alexa

40% OffFree Shipping

Main Highlights

Like-New Ring Alarm 8-piece kit is refurbished, tested, and certified to look and work like new and comes with the same limited warranty as a new device. Like-New Amazon devices may be packaged in generic Amazon-branded boxes.
A great fit for 1-2 bedroom homes, this kit includes one base station, one keypad, four contact sensors, one motion detector, and one range extender.
Put whole-home security at your fingertips with Ring Alarm, a do-it-yourself alarm system.
Includes a more intuitive keypad with emergency buttons and smaller contact sensors to seamlessly blend into your home.
Receive mobile notifications when your system is triggered, change your Alarm modes, and monitor all your Ring devices all through the Ring app.
Choose the Ring Alarm kit that fits your needs and add additional components and accessories at any time.
Easily setup your Ring Alarm by plugging in your base station, connecting to wifi via the Ring app, and placing your sensors in their ideal locations.
For added peace of mind, pair with Alexa to help you keep an eye on your home. Connect with Alexa to hear motion alerts on your compatible Echo device or see a Live View with an Echo Show, Fire TV, or Fire Tablet. Talk to visitors by saying, Alexa, talk to the front door.

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8.1

Save 15%

X-Sense

X-Sense Smart Smoke Detector Carbon Monoxide Detector Combo, Battery-Operated (Not AC Hardwired) Interconnected Combination Smoke Carbon Monoxide Detector, 5 Detectors with 1 Base Station, SC07-MR51

15% OffFree Shipping

Main Highlights

Note: This is a battery-operated, wireless interconnected combination alarm powered by a replaceable lithium battery (not AC hardwired)
App Alerts: With the alarm setup in the app, youll get an instant alert when it is triggered, and the alarm and base station will both sound; youll also get handy alerts for low battery, faults, test results, and more
All Alarms Sound As One: All Link+ Pro alarms connected to the base station will sound together if any one of them is triggered, ensuring everyone hears the alarm and can react quickly; the Link+ Pro series includes SC07-MR/XP0A-MR combination alarm, XS01-M/XS0B-MR smoke alarm, XC01-M carbon monoxide alarm, and XH02-M heat alarm
App Test/Silence: Test or silence your alarms with just a tap in the app; no need to fetch a ladder to reach the test/silence button
Easily Locate the Source Alarm: Name the alarm based where its located; when the alarms sound, tap the Locate button to silence the base station and other alarms, leaving only the triggered alarm active and displayed with room name
Fast Fire Dispatch Within Just 3 Seconds: By subscribing to the (optional) Protect+ Premium subscription plan which provides 24/7 professional monitoring service, when an alarm is triggered, you will receive a message from the monitoring center within 3 seconds to verify the emergency. After the emergency is verified, a fire truck will be dispatched immediately
10-Year Combination Alarm: Benefit from this smoke and carbon monoxide alarm for an entire decade; replace the battery just once thanks to the 5-year CR123A battery
Share the Convenience: Let up to 12 people control the device via the X-Sense app, making it easy for everyone to receive notifications, test and silence devices, check the alarms status, and more

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Our Best Overall Choice

Best Choice

9.7

FIRST ALERT

First Alert Battery Powered Z-Wave Smoke Detector & Carbon Monoxide Alarm, Works with Ring Alarm Base Station, 2nd Generation

15% OffFree Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

The front cover design of the alarm may vary but product function remains the same
This device is certified to work with Ring; Requires Ring Alarm Base Station to Work with Ring. Enjoy improved compatibility, easier setup and a seamless in-app experience.Temperature Range: 40°F (4°C) to 100°F (38°C). Humidity Range: 10% to 95% relative humidity (RH)
Receive real-time notifications in the Ring App when smoke or carbon monoxide is detected. Do not insert the batteries into your First Alert alarm until prompted by the Ring app
Certified to work with smart home systems such as Ring Alarm Base Station, Samsung SmartThings, and Nexia Home Intelligence when connected to a Z-Wave Plus gateway hub (sold separately; Not compatible with Wink or Onelink)
Help keep your family safe with this battery-powered smoke detector and carbon monoxide alarm; includes 2 AA batteries
The Z-Wave Plus with Smart Start feature allows a faster and more intuitive connection of device to hub and on-boarding via QR code scan located on device
Photoelectric smoke sensor helps reduce false alarms caused by cooking or shower steam
Includes an 85-decibel horn, single test/silence button, side access to a tamper-resistant battery door, and pins that lock the alarm to the mounting bracket

Show Price

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