Know about smoke and carbon monoxide when you’re away from home with real-time alerts on your phone whenever your Ring sensor hears your smoke and CO detectors go off. Simply place Alarm Smoke and CO Listener near an existing smoke and carbon monoxide detector at home and connect it to the Alarm Base Station. The Base Station features a powerful siren and a backup battery to help keep you secure for up to 24 hours if you lose power. Easily arm and disarm your Alarm system while indoors with the Keypad.

For total peace of mind, get 24/7 Professional Monitoring with emergency police, fire, or medical support¹ with a compatible Ring Protect subscription, sold separately.

This item includes:

Alarm Base Station, Keypad, Smoke & CO Listener

Please note:

• Ring Alarm and all Ring Alarm accessories require a compatible Ring subscription (sold separately) for digital arming/disarming and certain other in-app features.
• The Smoke/CO Listener device does not detect fire, smoke or carbon monoxide. For best performance, use with detectors that are 10 years old or less and comply with all applicable standards.
• Smoke and carbon monoxide monitoring is not available at a business or commercially zoned address. Learn more here.

We're sorry, this item is discontinued.