10 Best Smart Smoke Detector 2025 in the United States

The X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector is designed to provide comprehensive safety for your home. Its main strength lies in the interconnected feature; when one unit detects smoke or CO, all interconnected units will alarm, ensuring that you are alerted promptly no matter where you are in the house. With the ability to connect up to 24 devices, this system can effectively cover larger spaces, making it a great choice for families living in bigger homes.

The smoke detector uses advanced detection technology, combining photoelectric and electrochemical sensors, which enhances its reliability in detecting both smoke and harmful CO levels. The informative LCD display is another plus, showing real-time CO levels and battery status, keeping you informed about the unit’s functionality.

On the practical side, the built-in 10-year battery is a significant advantage, removing the hassle of battery replacements during the lifespan of the unit. Installation is straightforward, as they are screw-in models and lightweight, weighing only 300 grams each.

However, this model does not support Wi-Fi, which may limit smart home integration for users looking for more advanced features such as remote monitoring via smartphone apps. If Wi-Fi connectivity is a priority for you, you would need to consider the alternative model, SC07-WX. Additionally, while the coverage per detector is decent, it is recommended for spaces up to 215-430 sq. ft., so you'll need to ensure adequate placement throughout your home for maximum protection.

The Kidde Hardwired Smoke & Carbon Monoxide Detector offers a comprehensive 2-in-1 detection for both smoke and carbon monoxide, making it a cost-effective solution for home safety. Its hardwired installation ensures a stable power source, while the 10-year battery backup adds reliability by eliminating frequent battery replacements. This is particularly beneficial for users seeking long-term, low-maintenance safety devices. The enhanced sensing technology is designed to reduce false alarms, which is a common annoyance in many detectors, especially those triggered by cooking smoke. This makes it suitable for installation in various parts of the home, including the kitchen.

The voice alerts are a notable feature, providing clear instructions in emergencies, which can be crucial for quick reactions. Additionally, the interconnect capability means that if one alarm goes off, all connected alarms will sound, providing a broader safety net throughout the home. The self-testing feature helps ensure the device is functioning properly, though users should still perform manual tests regularly. The LED notifications offer straightforward visual indicators of the device's status, which can be reassuring.

However, the hardwired installation might be a drawback for some users, especially renters or those not comfortable with electrical installations. Professional installation may be required, adding to the initial costs. Despite these considerations, the 10-year warranty provides peace of mind regarding the product's longevity and reliability. The Kidde detector is well-suited for homeowners looking for a reliable, low-maintenance smoke and CO detection system with modern features.

The X-Sense Smoke and Carbon Monoxide Detector Combo offers reliable 2-in-1 protection by combining smoke and carbon monoxide detection in one device. It uses photoelectric and electrochemical sensors, which are effective for detecting smoke and CO respectively, making it a good choice for family safety. One of its biggest strengths is the wireless interconnection feature allowing up to 24 alarms to link together. This means if one alarm detects danger, all connected alarms will sound, providing better home coverage.

It does not support Wi-Fi, so you won’t get smart home app notifications or remote alerts, which might be a drawback if you want advanced smart features. The device is powered by a sealed 10-year lithium battery, meaning you won’t need to worry about changing batteries often, which adds convenience and reduces maintenance. Installation is straightforward since it’s battery-powered and wireless, though linking multiple alarms requires understanding the RF interconnection process.

The detectors are made from heat-resistant, durable materials, ensuring long-term reliability. This product suits those looking for dependable, easy-to-install smoke and CO protection with excellent inter-device communication but without the complexity or cost of full smart home integration.