Compared to the competition, Nest Protect 2.0 is by far the best smoke and carbon monoxide detector on the market today. Whether it’s activating the convenient in-app “silence” feature when needed or its full integration with other smart devices, Nest’s second-generation smoke detector comes with all of the bells and whistles.
If you’re looking for a reliable smart smoke and CO detector without shelling out close to over $100, then Roost’s Wi-Fi Smart Battery is the way to go. The Roost Smart Battery retrofits to your existing alarm and gives you smartphone notifications when there’s a problem. It’s as simple as replacing your old 9V battery with Roost’s long-lasting (5 years) lithium battery.