10 Best Wifi Smoke Alarms 2025 in the United States

The X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector is a solid choice for those seeking comprehensive safety for their homes. One of its major strengths is the interconnected design; when one unit detects smoke or carbon monoxide, all alarms in the network will sound, ensuring you’re alerted no matter where you are in the house. This feature is particularly useful for larger living spaces and enhances safety by providing early warnings.

The device combines two essential safety features: a photoelectric smoke sensor that is effective in detecting smoldering fires and an electrochemical sensor for carbon monoxide. This dual protection is a significant advantage, giving you peace of mind knowing that you’re covered against both threats. Another noteworthy benefit is the built-in 10-year battery life, which eliminates the hassle of frequent battery replacements. The informative LCD display showing CO levels and battery status adds an extra layer of convenience, allowing you to monitor conditions at a glance.

The installation process is straightforward, requiring just a screw-in method, making it accessible for most users. The 6-pack option is also a cost-effective way to cover multiple rooms, but ensure that your coverage needs are met, as each unit covers around 215-430 sq. ft. The X-Sense detector is an excellent choice for those who prioritize a reliable and interconnected smoke and CO alarm.

The X-Sense Combination Smoke and Carbon Monoxide Detector (Model XP0A-MR31) stands out for its comprehensive protection and modern features. With both smoke and CO sensors, it offers 2-in-1 detection, simplifying installation and saving space. The voice location feature is particularly useful, providing clear, spoken alerts that specify the detected threat and its location, which can expedite evacuation and response times.

The device can be interconnected via an app, sending instant alerts to your phone and up to 12 family members, ensuring everyone stays informed. An ultra-slim design allows it to blend seamlessly into your home décor, and it’s made from heat-resistant PC plastic, adding to its durability. The replaceable CR123A battery promises up to 5 years of use, with a sensor lifespan of 10 years, contributing to long-term reliability.

The optional Protect+ Premium subscription provides 24/7 professional monitoring, potentially dispatching emergency services within 3 seconds of alarm verification. However, this service incurs an additional cost. Installation is user-friendly, with spoken instructions to guide you through the setup and maintenance processes, such as pairing over Wi-Fi and testing the alarms. This model is a solid choice for those seeking a high-tech, reliable detection system, particularly in tech-savvy households looking for modern conveniences and proactive safety features.

The First Alert SMICO100-AC is a hardwired smoke and carbon monoxide alarm that utilizes advanced ionization detection technology. One of its notable strengths is its precision detection, designed to minimize false alarms from cooking while providing early warnings for fires. It features an interconnect system, meaning if one alarm sounds, all interconnected alarms in the home will also sound, increasing safety in larger homes.

Its quick connect plug allows for easy installation without the need for rewiring, and the included battery backup ensures the alarm continues to operate during power outages. The test/silence button adds convenience for regular maintenance and silencing nuisances.

However, this model does not offer WiFi connectivity or smart home integration, which means it lacks features like mobile alerts and remote monitoring that are common in other WiFi-enabled smoke alarms. Additionally, it relies on a corded power source with an alkaline battery backup, which may require frequent battery replacements. The First Alert SMICO100-AC excels in detection and ease of installation, but its lack of connectivity options may limit its appeal to those looking for more advanced smart home features.