Turn your smoke alarm into a Smart device with this Roost Smart 9-volt battery, and monitor it from your smartphone. This easy-to-install battery replaces your standard battery without the use of tools. The compatible Roost app lets you sync this Roost Smart 9-volt battery with your phone so it can let you know of alerts and low battery.

Roost - Smart 9V Battery - White, Blue

$34.99

Turn your smoke alarm into a Smart device with this Roost Smart 9-volt battery, and monitor it from your smartphone. This easy-to-install battery replaces your standard battery without the use of tools. The compatible Roost app lets you sync this Roost Smart 9-volt battery with your phone so it can let you know of alerts and low battery.