Compatible Alarm sensors (separate purchase) are required for an automated professional monitoring response. If you are using an Alarm or Alarm Pro Base Station without compatible Alarm sensors, use the SOS button in the Ring app to request emergency dispatch. Smoke and carbon monoxide monitoring is not available for a business or commercially zoned address. See ring.com/jobsitefaq for more details. Ring Alarm Pro and Ring Alarm professional monitoring service is available within the U.S. (all 50 states, but not U.S. territories). Ring does not own its own professional monitoring center. Additional charges may apply in areas that require permits or guard response service for alarm verification. Tax not included. Ring Protect Pro subscription (sold separately) and enrollment in professional monitoring is required. See Ring alarm licenses at: ring.com/licenses.​