Monitoring refers to the connection of your system to a central station at a different location. When your alarm goes off, it sends a signal to the station, where the monitoring service calls your predetermined numbers. You can set up your monitoring service to call the police, fire department, a neighbor, yourself, or any other person you specify. Different parts of your alarm system can be programmed to call different numbers. For example, you can have the police respond to your motion burglar alarm, and the fire department respond to your fire or smoke detector. Monitoring by a central station is essential if you subscribe to panic or medical monitoring features. Panic monitoring allows you to secretly alert the central station from inside your home in the event of an emergency. Medical monitoring sends a signal to the station from a wearable unit in case you're in a medical emergency and can't get to the phone. If you're interested in monitoring by a central station, an alarm company in your area can give you more information.