Ring Alarm 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.

The Alarm Smoke and CO Listener sends you real-time mobile notifications alerts whenever it hears sirens from smoke or CO alarms in your home. Simply place the Listener near your existing smoke or CO alarm, connect it to your Ring Alarm Base Station.

Features

• Sends notifications to your phone and tablet
  
• Place within 6 inches of existing smoke or CO alarms (for optimal performance, install within 3 inches)
  
• 3V Lithium Battery Included, non-rechargeable
• Z-Wave (250-foot range to Base Station)
• Optional 24/7 Professional Monitoring (requires Ring Protect Plus Plan, sold separately)
• *Requires the Ring Alarm Security Ki