Are you looking for CCTV System Installation
NJ? T&R Alarm Systems is a trusted CCTV System Installation
NJ provider by many homes, offices, and government offices for many
years.
When selecting the best security camera system
possible for your home or business it is important to select the right cameras
that fit the unique needs of your situation. There are countless options and
product features available.
Many packaged systems come with general
purpose security cameras. Most vendors will allow you to replace the
general-purpose cameras with more advanced specialized cameras if you need
them. For example, you may have a situation where three entrances into your
building need to be monitored with just average quality cameras and you want to
cover the parking lot with a camera that can read a license plate from 50 yards
away. You can get 3 of the cameras that come with the general-system then
replace the fourth with a camera that has high powered zoom capabilities.
By walking through this security camera
selection guide you will be able to identify the special features that your
situation requires and determine which cameras best fit your needs. Ultimately
this will allow you to most efficiently spend your money while getting the best
surveillance coverage.
1) Will you need color or black and white cameras?
Most packaged systems come with color cameras which are better than black and
white cameras at identifying valuable details of a suspect such as clothing or
hair color. Typically black and white cameras are less expensive and perform
better at low light than color cameras. Color cameras actually switch over to
black and white in low light environments.
2) What type of night vision capability is needed? A
typical packaged color security camera will have a night vision range of
between 15 and 50 feet. High powered night vision cameras can have a range of
150 feet. The main factor of determining the night vision range is the number
of infrared LED's on the camera. Most general-purpose security cameras come
with 15 to 30 LED's. Remember, even color cameras record in black and white in
low light situations.
3) What is the lowest acceptable image quality from
each location where cameras are installed? You may have different image quality
requirements for each location. One camera may be installed at the front door
only to buzz people in when they arrive for appointments. Another camera may be
used to capture license plates of cars driving through a large parking lot. These
cameras have much different image quality requirements. The number of TV Lines
(TVL) per inch is an indicator of the image quality that is produced by the
camera. General purpose packaged security cameras commonly have 400 - 420 TVLs.
Cameras that have 480 - 520 TVLs will give a much better image quality. Also,
CCD cameras generally produce a better image than CMOS cameras.
4) Wired vs. wireless? Understand the disadvantages of
using wireless security cameras before deciding to purchase them. A lot of people
fail to realize wireless security cameras still need power via a power cable.
Wireless cameras use wireless technology to transmit a signal to a receiver
which is connected to a DVR or monitor, but most of them use a power cable to
plug into a nearby outlet. There are battery operated wireless security
cameras, but the batteries need to be replaced quite often.
The image quality of wireless security cameras is
often inadequate because of interference. The farther away a wireless camera is
from the receiver and the more obstructions the signal must travel through, the
more the image quality is going to suffer. There are many, many situations
where wireless security cameras are ideal. Many of the wired systems available
have cabling that supplies both power and video (aka Siamese cabling). This
means all the power requirements can be managed from the same location as the
DVR or monitor.
5) What elements are the security cameras going to be
exposed to? Most general-purpose security cameras that come in packaged systems
can be used outdoors (as well as indoors) under normal conditions. If the
cameras are going to be exposed to extreme conditions such as hail, very high
winds or there is a high likelihood of vandalism you may want to upgrade to
cameras with heavier and stronger housings and mounting brackets.
If you want to learn more about what this security
measure is about, contact T&R for more information on CCTV security installation
in NJ, at 1-800-486-5019.