Smoke & and CO Listener Transparent Product Image

Smoke and CO Listener

Place Alarm Smoke and CO Listeners near each of your existing smoke and carbon monoxide detectors to get alerts whenever they sound their sirens. Subscription required, sold separately. ¹ ² ³

This 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.

Key Features

  • Requires
    Security Kit.
  • Sends notifications to your phone and tablet, subscription required, sold separately.
  • Place within 6 inches of existing smoke or CO alarms (for optimal performance, install within 3 inches).
  • Optional 24/7 Professional Monitoring with
    subscription, sold separately. Smoke and carbon monoxide monitoring is not available at a business or commercially zoned address.

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Tech Specs

Diameter: 2.95 inches (7.5 cm.)
Height: 1.06 inches (2.7 cm.)
3V Lithium Battery (included), non-rechargeable
Battery Life
Max 3 Years
Z-Wave (up to 250-foot range to Base Station)
Operating Conditions
32°F to 120°F (0°C to 49°C)

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Requires Ring Alarm or Ring Alarm Pro, sold separately.
Ring Alarm and all Ring Alarm accessories require a subscription for digital notifications, in-app features, digital arming/disarming, and integration with other Ring, Echo, and third party products. Subscription sold separately. View for pricing and details.
Smoke and carbon monoxide monitoring is not available for commercial properties. See Ring Alarm licenses.​