Best Combination Smoke & Carbon Monoxide Detectors of 2025

The Google Nest Protect is a smart smoke and carbon monoxide detector that enhances your home safety. With its split-spectrum smoke sensor, it effectively detects both fast and slow-burning fires, providing you with peace of mind. You will be alerted on your phone whenever there's a danger, allowing you to respond quickly, even when you are away. Its self-check feature monitors the device over 400 times a day, ensuring everything is functioning correctly, while the Pathlight feature lights your way at night, making it easier for you to navigate in the dark.

The Google Nest Protect is an advanced smoke and carbon monoxide alarm designed to keep you safe. With its split-spectrum smoke sensor, it detects both fast and slow-burning fires, alerting you to the type of danger present. You’ll receive notifications on your phone if there's a problem at home, ensuring you are informed even when away. The device performs over 400 self-checks daily, so you can trust it to work properly. Plus, the Pathlight feature illuminates your way at night, providing added convenience for late-night trips.

The Kidde 10SCO Alarm is designed to keep you safe with reliable performance. You can easily test the alarm by pressing the test button, ensuring it functions correctly. The voice notifications provide clear warnings like "fire! Fire!" and "Warning! Carbon monoxide," alerting you to potential dangers. Additionally, the unit features a Hush mode, allowing you to silence nuisance alarms, which enhances your convenience and peace of mind while maintaining safety in your home.

The Kidde 10SCO Alarm combines two essential safety devices into one unit, saving you space and enhancing convenience. You will appreciate the distinct voice warnings for smoke and carbon monoxide, making it easy to identify the type of danger. The loud 85dB alarm ensures you will be alerted promptly, providing peace of mind. With a 10-year sensor life, you can trust this alarm to protect your home for years to come without frequent replacements.

The Kidde K10LLCO Alarm offers continuous monitoring of carbon monoxide, ensuring your safety at all times. Its sealed-in lithium batteries provide a hassle-free solution, lasting the full 10-year life without needing replacement. This alarm meets the new Scottish Regulations introduced in 2022, giving you peace of mind with compliance. With its clear LED indicators, you can quickly check the alarm status, allowing you to stay informed about your home's safety.

The Fireangel SCB10 Detector is designed to protect your home from two deadly threats: smoke and carbon monoxide. Its advanced optical detection technology significantly reduces the chances of false alarms, providing you with peace of mind. You can also rely on its electrochemical technology for improved carbon monoxide detection, ensuring you stay safe. With easy alarm identification through two distinct alarms and indicator lights, you can quickly assess any situation and react accordingly.

The X-Sense XP0A-SR Alarm provides essential safety features for your home. With English voice alerts, you will instantly know if smoke or carbon monoxide is detected, allowing you to react promptly. The easy-to-understand voice notifications keep you informed about battery status and faults, ensuring you're always aware of the alarm's condition. This device combines smoke and carbon monoxide detection in one unit, simplifying your safety measures while protecting your family from two deadly threats.

The AEGISLINK CO Alarm features an informative LCD display that shows real-time carbon monoxide concentrations and battery level, helping you monitor potential CO leaks easily. Its long-lasting sensors provide a lifespan of up to 10 years, ensuring reliable protection for your home. The lightweight design covers a detection range of 20–40 m², safeguarding your family from harmful smoke and carbon monoxide. Additionally, the advanced photoelectric smoke sensor and electrochemical CO sensor work together for consistent and dependable monitoring, giving you peace of mind.

The Kidde 30CUDR Detector offers essential 2-in-1 detection for both smoke and carbon monoxide, ensuring your home is safe with a single device. Its enhanced sensing technology significantly reduces false alarms, especially those triggered by cooking, giving you peace of mind. With no wiring required, installation is straightforward—simply mount the bracket and click the alarm in place. The self-testing feature ensures the alarm operates correctly, allowing you to verify its functionality with a simple weekly button test.

The ECENCE Smoke Detector Mount offers an innovative way to install your smoke alarms without the hassle of drilling. With a simple one-minute installation process, you can easily attach the magnetic holder by peeling off the adhesive film and pressing it in place. This ensures a secure hold, allowing you to install your smoke detector with confidence that it won’t come loose. Additionally, changing the battery is a breeze, as you can remove the alarm sideways without any tools, making maintenance straightforward and efficient.