What are the basic parts of home security systems?
1) Entry Limiters – this part of the home security system limits the people who will have access to your house. An entry limiter may be as simple as a padlock or it could be as complex as a biometric identification system. The purpose of this part of the home security system is to let you pre-arrange the people who will have access to your home.
Entry limiters are the most fundamental part of the home security system. Some of the forms of entry limiters available today are:
A) Locks – this, of course, refers to deadlocks and padlocks wherein a person must use a key in order to gain entry. This is probably the simplest and cheapest way to limit access to a certain place.
B) Electronic magnetic strip scanners – this type of entry limiter makes use of an electronic device to lock the door. Access can be gained by swiping or scanning the magnetic strip of an identification card. Electronic magnetic strip scanners are commonly used in offices and business establishments.
C) Biometric scanners – there are three types of biometric scanners commonly in use today: voice identification, thumbprint scanning and retinal scanning. What’s common about all these devices is the fact that they all verify a person’s identity using unique identification marks. A person’s voice, thumbprint, and retina are unique and cannot be copied. Thus, the home security system can identify whether or not a person is allowed to access a certain area.
2) Alarms – these inform the owners or the authorities if someone has attempted to access their homes without the proper authorization. Some alarms are motion-sensitive and send out signals in case a person triggers it. Others are directly connected to sensors that are sensitive to motion or to sound.
There are alarms which make a lot of noise and thus, startle trespassers. This, of course, discourages would-be thieves from doing any more harm.
Some “silent alarms” notify the authorities without letting trespassers know that they have been alerted. This is because of the fact that panicking trespassers could be capable of more damage than ones caught unaware.