Security of any enterprise and private property
is not without cameras video surveillance. However, the choice
of a particular model is of some difficulty for those who have not previously
encountered with them. You can buy a video camera for the lowest cost,
with greater practicality.
Determine the desired structure video surveillance
camera of the type depends on the location of its installation and viewing
purposes: - mini-camera designed for covert surveillance and mounted on the
wall. Box of such cameras is a cylindrical or rectangular - dome cameras
are installed on the ceiling and have an interesting design - street video
cameras have a protective cover to the heating system, sunshield and infrared
illumination for night-time - standard cameras are usually made in a
cylindrical shape and are suitable for mounting on any surface. For them,
you can use almost any desired angle lens with Ferris - Modular cameras are
made without housing with a card and small lenses. They can be inserted
into the housings or box - cameras have adjustable swivel mechanism for a
better consideration of the object and a certain area.
Select Color or Monochrom and white surveillance
cameras have a lower cost and higher sensitivity, which allows to see better at
night than colored. However, the color camera can be equipped with many
features. For example, the function "day / night" allows you to
switch to monochrome in the dark. In some cases, the color of the image is
required for a better recognition of the object. However, the color models
are more expensive. BTW, you can buy the cheap dome cameras at Banggood.
Besides, you can easily get other electronic accessories (e.g. cheap decibel meter, cheap dial indicator)
there with high quality and reasonable prices.
Please note that technical characteristics-
resolution: measured in TV lines. Vertical models have milestones
resolution equivalent to 625 TV lines and the horizontal is between 380 and 600
TVL. The higher the score, the more fine detail can be seen; -
sensitivity: her choice depends on the level of illumination of the observed
area. Sensitivity is measured in lux (lx). The higher the value, the
brighter the object is illuminated in the daytime. The smaller the better
visibility is at night. For example, areas with poor lighting (on the
street) should give preference to the cameras with sensitivity from 0.01 to
0.05 lux.
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