Roost Enters Smart Smoke Alarm Business With RSA-400, RSA-200

Detectors join Smart Battery, which makes dumb alarms smart
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Roost’s $79-suggested RSA-400 detects smoke, fire, carbon monoxide, and natural gas.

Roost launched its first pair of smart smoke detectors following the CES 2016 launch of the Roost Smart Battery, which turns existing smoke alarms into smart alarms.

The $79-suggested RSA-400 detects smoke, fire, carbon monoxide and natural gas, and the $59-suggested RSA-200 detects smoke and fire. Both are 120-volt hard-wired alarms packaged with a Roost 9-volt Smart Battery back-up.

The Smart Battery combines a back-up battery with Wi-Fi. It was selected as a CES 2016 Innovation Awards honoree in the Smart Home product category.

The alarms send notifications via a home’s Wi-Fi network to a user’s smartphone even if the user is away from home. They also eliminate low-battery alarm “chirps” by notifying consumers’ phones that they need to replace the Roost Smart Battery with a $14.99 snap-in replacement. The Smart Battery’s life span is estimated at five years.

Consumers who buy a Smart Battery for previously installed dumb detectors pay $34 for the first battery and $14.99 for a replacement.

To develop the detectors, Roost partnered with smoke-alarm manufacturer Universal Security Instruments. The products incorporate USI’s patented Universal Sensing Technology, said to significantly reduce the occurrence of nuisance alarms and more effectively detect slow-smoldering and fast-flaming fire.

Both alarms are available for pre-order at and are expected to ship in June. They will be rolled out later through online retailers and traditional brick-and-mortar retailers.

The Roost Smart Battery is available at the company’s website as well as through, and more than 200 Home Depot brick-and-mortar locations across the U.S.


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