31% off Roost Smart 9V Battery for Smoke and Carbon Monoxide Alarms, 2-Pack – Deal Alert

The Roost Smart Battery mimics the form of a 9V battery, installs in minutes, and lasts for more than 5 years. Using your home’s WiFi, Roost will communicate when it’s running low on power, so you can take action to avoid those dreaded middle-of-the-night interruptions. The Roost Smart Battery is designed to be used with your