AIRING ON LIFETIME

Roost; Batteries

DIY: Retrofit Smoke Alarms Without Breaking the Bank

Roost has created a smart battery that connects to your WiFi, immediately letting you know there is a problem. The battery fits inside a nine-volt smoke or carbon monoxide alarm. Plus, Roost batteries last up to five years, and their free app alerts you when your battery is getting low. You can also invite neighbors […]

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