Burglar Alarms/ Home Security Systems
Home security systems, burglar alarms,
security alarms, there are many different names for systems that
are basically designed to protect your home and your family.
Although all burglar alarms serve the same basic function, there
is a lot of variety out there, and it is a good idea to decide
what sort of home security system is best for you before you go
out with credit card in hand.
Wireless Burglar Alarm System
The Home Sentinel Wireless Burglar Alarm is easily installed at
a fraction of the cost of most other alarms.
Voice Dial home security
system. Main Console emits notification alarm, begins
dialing up to four pre-programmed numbers, plays a digital audio
How Home Security Systems/Burglar Alarms Work
All alarm systems have triggers. The two main types of burglar
alarms are ones that are tripped when someone breaks an
electrical circuit, and alarms that are tripped when motion is
Electric Circuit Burglar Alarms
Alarms that use electrical circuits are the simplest types of
alarm systems. They are usually used to guard the perimeter of
the house, possible entryways a burglar might use to enter your
home. These kind of home security systems can be divided into
two types: closed-circuit systems and open-circuit systems.
With closed-circuit systems, the electric circuit remains closed
as long as the door is shut. If someone opens the door, the
circuit is interrupted, and the alarm is triggered. An
open-circuit system is just the opposite; when someone opens the
door, the circuit is completed, electricity flows, and the alarm
Motion detectors are the other main types of home security
systems. They are useful for detecting burglars who are already
in the house. Motion detectors work by sending out radio energy
and monitoring the reflection pattern. If the reflection pattern
is disturbed, for example by somebody walking into the room, the
alarm is triggered and a signal is sent to the control box.
Motion detectors and open- or closed-circuit alarms can be
combined to create a comprehensive home security system.
Categories of Home Security Alarm Systems
Single Premises Alarms
These cheap alarm systems have a single purpose: to warn your
family about a specific type of danger. They can include CO
detectors, smoke detectors, or battery-operated door wedge
Local Alarm Systems
When somebody triggers a local alarm system, a siren sounds,
warning the house's occupants (and neighbors) of intruders.
These kind of alarm systems don't do anything besides activate a
siren, however, so if nobody is around to respond to the noise,
they may not be that effective. However, the noise alone is
often enough to scare away would-be burglars.
Telephone Dialer Systems
The next step up from local alarm systems are telephone dialer
systems. These types of alarms dial preprogrammed numbers if the
alarm is tripped. From there, the security service is contacted
which in turn contacts local police or fire departments and the
homeowners. This is all automated. Typically, telephone dialer
systems will call up to four numbers and play a prerecorded
request for assistance message.
Continually Monitored Security Systems
The most effective (and most expensive) type of burglar alarms
are continually monitored security systems. With these types of
alarms, tripping the alarm alerts your security monitoring
company. Real people in turn call the police/fire department.
Some companies will send a security officer to your home to
check in on things.