How to choose a wireless
security camera
Wireless security cameras are cameras
that do not require a connecting cable to be run between
the camera and the recording or viewing device. They
use a radio transmitter to transmit the video signal
from the camera to a receiver, which is located near
the recording (VHS recorder, DVR - Digital Video Recorder)
or viewing (TV, monitor) device. The primary advantage
of wireless security cameras is their ease of installation.
With a traditional wired camera system, running the
cables can cost as much or more than the cost of the
equipment itself. In addition, wireless security cameras
can be installed in locations where it would be difficult,
if not impossible to run cabling.
There are a number of factors to consider
when choosing among the available models of wireless
security cameras offered by totalsecuritywarehouse.com.
One of the first things to consider is where the camera
is to be mounted. If the camera is to be mounted outdoors,
then it is necessary to choose a weatherproof model.
Also, you need to consider the temperature range where
the camera will be located. Consider a model with a
built-in fan and heater if the outdoor temperature in
your area reaches extremes (less than -10 degrees F
or more than 104 degrees F for color cameras, -10 degrees
F to +122 degrees F for black and white cameras). Also,
keep in mind that each of the wireless security cameras
will require a plug-in for the power supply to the camera.
Another factor to consider when choosing wireless security
cameras is whether you need color or black and white.
Color cameras provide more detail, such as the color
of a car or the color of a person's clothing. But black
and white cameras actually provide more resolution and
can operate with less available lighting. For example,
you might be able to make out a license plate number
captured at some distance at night with a black and
white camera, whereas with a color camera you would
not be able to read it at the same distance. For the
best of both worlds, consider choosing one of our dual-mode
wireless security cameras. These cameras operate in
color during the daytime, and switch to black and white
at night when there is less available light.
You also need to consider the distance
between the camera (transmitter) and receiver when choosing
wireless security cameras. All of our wireless security
cameras use a 2.4GHz transmitter/receiver combination,
which can transmit a clear signal up to 700 feet with
a direct line-of-sight. Line-of-sight means with no
obstructions in the path between transmitter and receiver.
In a typical home or business application, there should
be enough extra signal power to transmit a few hundred
feet even through obstructions such as ceilings and
walls.
There are a few more factors you should
consider when choosing wireless security cameras, such
as the type of sensor the camera uses, low-light operation
(LUX value) and the resolution provided by the cameras.
There are two major types of sensors - CCD or CMOS.
CCD sensors use analog technology and typically operate
at lower light levels and with a higher resolution than
CMOS sensors. However, CMOS sensors use less power,
which can be an important factor in batttery-powered
cameras.
The LUX value gives an indication of
the low-light sensitivity of the camera. The lower the
LUX value, the more sensitive the camera is to light.
For example, a camera that sees down to 1 LUX would
be able to record a usable image in the late afternoon,
around dusk. A LUX value of .1 would allow use of the
camera in a well-lit parking lot on a dark night. A
LUX value of .05 would actually be able to record an
image in very dim light, better than the ability of
the human eye.
The resolution of wireless security
cameras is another factor to be considered. Resolution
is usually specified in the number of horizontal lines
- this is the number of lines that the camera "paints"
on the screen when viewing an image on a monitor. The
higher the resolution the better the picture. A typical
"standard resolution" would be around 320
lines for a color camera, or 380 for a black and white
model. A typcical "high resolution" would
be 460 for a color camera or 560 for a black and white
model.
As you can see, choosing wireless security
cameras can be a complicated process. This is all the
more reason to do business with totalsecuritywarehouse.com,
and take advantage of our years of experience in this
business to help you in choosing the wireless security
camera system that is right for you. In addition, our
selection of wireless security cameras is among the
best in the industry.
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