What Is Professional Monitoring?
Professional monitoring is a paid service where a security company operates a 24/7 staffed central station. When your sensors trigger an alarm, the signal travels from your base station (via cellular or internet) to the central station. A human agent reviews the alert, attempts to contact you, and dispatches emergency services if they cannot confirm it’s a false alarm.
How It Actually Works
- Sensor triggers (door opens during alarm-armed period)
- Signal leaves base station via cellular or internet
- Central station receives the alert
- Agent calls your primary contact number (you have 30-60 seconds to enter your security code or confirm false alarm)
- If no answer or invalid code: emergency services dispatched
- Police/fire/medical arrives at property
This sequence typically takes 2-5 minutes from trigger to dispatch. Response time after dispatch depends on local emergency services.
UL 827 Certification
Professional monitoring central stations can be UL 827 certified — an Underwriters Laboratories standard for central station operations. UL-listed central stations meet specific requirements for staffing, backup power, communication redundancy, and response protocols.
Why this matters: many insurance companies specifically require a UL-listed central station to issue a monitoring certificate for homeowner policy discounts. ADT and Vivint operate their own UL-listed stations. SimpliSafe uses Alarm.com’s UL-listed network. Ring uses a third-party UL-listed provider.
Professional Monitoring vs Self Monitoring
| Feature | Professional Monitoring | Self Monitoring |
|---|---|---|
| Cost | $7-$60/mo | $0 |
| Dispatch | Automatic | You call 911 |
| Response when phone is dead/unavailable | Yes | No |
| Insurance discount certificate | Usually | Rarely |
| Works if you’re asleep | Yes | Only if you wake up |
Video Verification
Some professional monitoring plans include video verification — before dispatching, the central station reviews a live or recent camera clip to confirm the alarm is real. SimpliSafe Pro ($29.99/mo) includes this. Reduces false-alarm dispatches by roughly 60%, which matters in cities with false-alarm fines.
Related Terms
- Self Monitoring — the no-cost alternative
- Cellular Backup — what keeps the signal reaching the central station
- Video Verification — pre-dispatch camera review
- UL 827 Listing — the certification standard for central stations