Improve Your Home Security

By Choosing the Right Motion Detector
A home security system won't be at its most effective if it
does not use some sort of motion detection devices. These
sensors can alert you to intruders on your property
offering you an extra level of security. You can choose
from a number of different types.

There are two main types of sensors you can choose from,
which are the microwave motion sensor and the infrared
motion sensor.

The microwave motion sensor works by bouncing microwaves on
objects around it, and measuring the time that each
microwave returns. If there is a moving object or person in
its area of coverage, a wave of different frequency is
returned which sounds the alarm.

These sensors have quite a good range and can cover a wide
area. It is also possible for you to hide these sensors
behind objects as the microwaves they emit can penetrate
solid objects. The major downside to these sensors is their
sensitivity - their operation can be negatively affected by
lighting and radio signals.

If you want to use a microwave motion sensor in your house
security system, it would be better to allow a professional
to install it. This ensures that necessary adjustments
would be done to make the device work at its best settings.

The infrared sensor on the other hand is the most common
type of security motion sensor used by many homeowners.
This is because an infrared is cheaper than a microwave
sensor and is generally more reliable.

The infrared motion sensor uses the heat that radiates from
objects to detect motion. It measures the heat of the
background and any objects that pass in front of it.

The disadvantage of this type of sensor is that it cannot
cover a large area like a floodlight. It rather works like
a flashlight with finger-like points covering center areas.
Those that are in between the covered areas are not
monitored. Therefore, someone passing through these areas
will not be detected.

You can buy any of the two kinds of motion sensors to
complement your home security system. If you are having a
hard time deciding which to use, you can ask for the help
of a security expert. They can do the proper analysis on
which device is more suited to your needs and budget.
Reading reviews about these motion sensors can also help
you select the right type.

8th Feb 10