About Home Security Alarms

History

• Home security alarms were available from the early 1900s, but early models were expensive and cumbersome to use. Early alarms were triggered when a button fitted into the door or window frame was released. These were easy to silence, and they were not connected to any emergency services. Today, home security alarms use an electric circuit that is altered when the door or window is opened. If the homeowner's code is not entered into the system in enough time, the alarm is triggered. Many are connected to switchboards that can contact the police if the alarm is triggered.

Types

• When you purchase a home security alarm system, you will need to decide whether you want a hard-wired or wireless system. Hard-wired systems are much more difficult to install. These work best if they are used during the building of a home. Wireless alarm systems have fewer parts, but do require regular maintenance to work efficiently. If you choose a wireless system, you also need to decide if you want the system to be powered by electricity or batteries. If you lose power, you will still be secure with a battery-operated system, but you will need to check the batteries regularly.

Function

• A home security alarm system is a "closed circuit" around your home. A trigger, such as a button or a sensor, is installed in your doors and windows, which are the entry points for potential thieves. If the door or window is opened when the system is turned on, it breaks the closed circuit, and this sounds the alarm. Some security systems also use motion sensors. These trigger an alarm or turn on the lights if motion is detected within the home, adding a second level of security if the perimeter is successfully breached.

Effects

• If someone tries to break into your home while you have a home security alarm in place, a loud siren or other noise will occur. Flashing outdoor lights are also a common alarm triggered by security systems. This alerts the neighbors that there is a problem and, in most cases, scares the intruder away. Many systems also include a telephone auto-dialer. It can be programmed to call the police with a pre-recorded message or dial the security company that installed the system, who then can send the necessary information to the police.

Considerations

• If you are considering installing a home security alarm, you will need to decide whether to install it yourself or hire a pro. Installing it yourself is the most affordable option. However, you do need to have some electrical skills to successfully install one of these systems. Hiring a professional ensures that the installation goes smoothly. In many cases the installation will be part of an overall security package offered by a home security company. If you want the services of one of these companies, you will probably have to use a professional installer.