Since you already own a smoke detector, you realize the importance this device is for safety.  Smoke detectors are highly effective in preventing loss of life and property.

What is the difference between "Roger's Security®" or "battery-operated" smoke detectors you would buy at your local store.

"Roger's Security®" smoke detectors are connected to your security system and offers more protection because it is connected to a response team. 

Perhaps, a fire breaks out, the detector sets off an alarm and sends the signal to the response team connected to the central station.  The operator notifies the fire department and provides automatic notification.