10 Best Wifi Smoke Alarms 2025 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 Combination Smoke & Carbon Monoxide Alarm (SMICO100) offers reliable dual protection with its ionization sensor technology designed to quickly detect smoke and carbon monoxide. It uses First Alert’s Precision Detection system, which helps reduce false alarms caused by cooking, making it a practical choice for everyday home safety. This model is battery-operated with included AA batteries, which means installation is simple and doesn't require wiring, and maintenance mainly involves battery replacement.

It also features a convenient test and silence button to easily check the alarm’s function or temporarily quiet nuisance alarms. This alarm does not support WiFi connectivity or smart home integration, so it won’t send alerts to your phone or connect with other smart devices. Alarm volume is standard and loud enough to alert people in most home settings.

If you’re looking for a straightforward, dependable smoke and carbon monoxide detector without the need for app control or remote notifications, this alarm fits well. For those wanting a smart alarm that connects to a mobile app for monitoring or integrates into a smart home system, this model may not meet those needs.