Control panel: All the operations of the security alarm combo system are centered in this panel, including the connections to the central monitoring station, either through a phone line or via cellular/radio means.
Central monitoring station (company): If the system is monitored, and the alarm is set off, the control panel sends a message here.
Touchpads or Keypads: This is where the system is armed and disarmed. They should be placed near doors so they can be armed on your way out and disarmed after you return. Most work on a passcode system.
Key fobs: Similar to your car lock/unlock fob, this will allow you to arm and disarm your alarm system from outside the premises without using a passcode.
Sirens: A siren will sound an alert when an alarm is set off.
Door and window sensors: These set off the alarm when a door or window is opened. Glass break sensors are also available and recommended.
Motion detectors: Motion detectors are activated by movement within the protected room. There are various styles to meet the individual needs of the homeowner.
Video monitoring (streaming or CCTV): Surveillance video is an option with most systems at an additional cost. The images can either be sent to the monitoring station (streamed) or captured on site on a Digital Video Recorder (DVR).
Panic buttons: Alert the central station of an emergency situation that requires immediate response by the police. These buttons are also known as a Duress Alarms.