10 Best Carbon Monoxide Meters 2025 in the United States

The X-Sense Smoke and Carbon Monoxide Detector Combo offers reliable dual protection by detecting both smoke and carbon monoxide, making it a practical choice for home safety. It features wireless interconnection, so when one alarm goes off, all linked alarms sound together, which is great for alerting everyone in larger homes. The device includes an easy-to-read LCD display that helps users monitor status and alerts clearly. Powered by a sealed 10-year lithium battery, it provides long-lasting, maintenance-free operation, so you don’t need to worry about frequent battery changes.

Made from heat-resistant and corrosion-resistant materials, it’s designed to be durable and dependable. The sensor type is photoelectric, which is effective for smoke detection. Although it's not Wi-Fi-enabled, the RF wireless interconnection still covers up to 24 devices, which is enough for comprehensive home coverage. At about 5.7 inches and weighing nearly 5 pounds for the six-pack, it’s relatively easy to install and move if needed.

This detector is a solid option for homeowners seeking a combination alarm with long battery life and multi-device connectivity, while those wanting smart home integration might look elsewhere.

The First Alert SMCO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm offers dual protection against both smoke and carbon monoxide, making it a versatile safety device for home use. One of its standout features is the Precision Detection advanced sensing technology, which reduces false alarms from cooking and provides reliable early warnings in case of fire emergencies. This could be especially beneficial for families looking for dependable home safety devices. The alarm is battery-operated, which allows for flexible installation without the need for wiring, and maintenance is straightforward with the included AA batteries and an end-of-life warning system.

The test/silence button ensures the alarm is functioning properly, adding convenience for users. It is also noted for its portability due to the compact design of the 3-pack, making it easy to place in multiple areas of a home. The alarm is a solid option for general home safety, particularly for those needing both smoke and carbon monoxide detection.

The X-Sense Smart Smoke and Carbon Monoxide Detector combo is designed to keep your home safe with a modern, interconnected system of 5 detectors plus a base station. It uses photoelectric sensors, which are reliable for detecting smoke and carbon monoxide effectively, and connects to your home Wi-Fi (2.4 GHz only) to send alerts directly to your phone via the X-Sense app. This allows you to receive instant notifications if dangerous levels of carbon monoxide or smoke are detected, even when you’re not home.

The alarms link together, so if one triggers, all sound off, ensuring everyone in your house is alerted. The app also makes it easy to test and silence alarms remotely, which is handy if the alarm goes off accidentally. Battery life is strong, with a 10-year combined lifespan and replaceable 5-year lithium batteries, meaning you won’t need to worry about frequent battery changes. The detectors are compact and portable, making installation fairly simple without wiring.

It’s worth noting the system isn’t compatible with 5 GHz Wi-Fi networks, which could be limiting for some users. Also, while the fast emergency dispatch service is a useful option, it requires a paid subscription. The base station and app integration add convenience but might be more complex than basic standalone alarms. This product suits homeowners who want a smart, easy-to-manage smoke and carbon monoxide detection system with solid battery life and the convenience of remote alerts and controls.