10 Best Wifi Smoke Alarms 2026 in the United States

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.

The Kidde Hardwired Smoke & Carbon Monoxide Detector is a dual-purpose device that provides safety by detecting both smoke and carbon monoxide. Its hardwired setup with a battery backup ensures continuous operation even during power outages, which is essential for consistent safety. The device is designed to reduce false alarms, especially from cooking, which is a notable advantage in busy households.

The interconnect capability means that if one alarm sounds, all connected alarms will sound, ensuring you are alerted throughout your home. The 85-decibel alarm and LED notifications (green, amber, and red) make it easy to understand and respond to the device's status. A self-testing feature ensures the alarm is functioning correctly, though it should still be manually tested weekly. The device is relatively easy to install and maintain, with a test and hush button to manage false alarms.

One downside is that it lacks WiFi connectivity and smart home integration, which means it cannot be monitored or controlled via a mobile app. This might be a significant drawback for users looking for more technologically advanced features. Additionally, the hardwired installation might be challenging for those who are not comfortable with electrical work. The inclusion of a 10-year limited warranty adds value, but knowing the exact date the device was powered on is crucial for warranty purposes. This detector is best suited for users who prioritize reliable, dual-purpose detection over advanced smart home features.

The First Alert SMI100 smoke alarm is a battery-operated device focused on reliable fire detection using ionization sensor technology, which is effective at sensing fast, flaming fires. It features First Alert's Precision Detection technology designed to reduce false alarms from cooking, helping avoid unnecessary disturbances. Installation is straightforward since it runs on batteries and doesn’t require wiring, and the front-access battery compartment makes replacement simple.

The unit includes a test and silence button to check functionality and temporarily stop nuisance alerts. It also provides an end-of-life warning to remind you when it’s time to replace the alarm. This model does not offer WiFi connectivity or any smart home integration, so you won’t be able to monitor it remotely or receive alerts on your phone. There is no mobile app support, which could be a consideration for users wanting smart features.

The alarm volume and battery life are typical for battery-powered smoke alarms, sufficient for most home needs but not exceptional. This smoke alarm is well-suited for users looking for a reliable, easy-to-use basic smoke detector without the complexity or cost of smart features.