The most common security sensors are used to indicate the opening of a door or window or detect motion by Magnetic Contacts (MC) or Passive Infrared (PIR) motion detectors. New construction systems are hardwired for economy. Retrofit installations would often use wireless systems for a faster, more economical installation. Some systems serve a single purpose of burglar or fire protection while others combine both. Systems may range from small, self-contained noise-makers to complicated, multi-zoned systems with color-coded computer monitor outputs.
The basic elements of a Standard Security Alarm System include:
• Control Panel - this is where the System's cablings terminate, the back-up battery is located and phone lines connected if the end-user wishes to monitor their Alarm System.
• Keypad - this is where the Alarm System is armed or disarmed.
• Siren - this is where the Alarm System will trigger if a forced intrusion is detected.
• Motion Detector - this sensors sense changes in a room caused by activities or motion movement.
• Door & Window Magnetic Contacts - this will trigger off the Alarm System when the door or window is forced opened if it is armed.
Additional optional items can be added to the basic Security Alarm System:
• Smoke Detector
• Glass Break Detectors
• Panic Buttons
• CCTV Surveillance System
Having a Security Alarm System would diminish the chances of an burglar intrusion. Even if the System does not keep the burglar from breaking in, it will deter the burglar and force them to stay for a limited amount of time.
