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F.A.Q |
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Why we need the "surveillance camera"?
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Surveillance camera can protect your family's child and
old person's safety or it can record who go into your
home and doing some thing when you go out. (Some camera
have record function, otherwise need record card )
Our surveillance camera you can put inside clock, radio,
or other covert environment. Human's eye is very
difficult to detect. |
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What're the difference between a wired camera and a
wireless camera? |
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A wired camera needs a cable connect the camera to a TV
or monitor. The image signal is passed through the
camera, through the cable, and arrive your TV or
monitor, then allows you to watch the video (audio). All
wired cameras must use cable to connect the camera.
A wireless camera does not need cable connects the
camera to the TV or monitor. The image signal is
transmitted through the air to the TV or monitor
directly, or to a receiver. |
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How to the wireless camera work? |
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Like telephone, there have two kinds of telephone, wired
telephone and wireless one. Only different is processes
that how deal with transmit information with method.
Therefore, the wireless camera is also same, they are
depend on "the electromagnetic wave"come to arrive that
the wireless audio and video.
Our wireless system includes transmitter, receiver plus
your display device to be allowed to work.
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What are different between CCD and CMOS ?
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Both CCD or CMOS image sensors are electronic devices
that use a variety of technologies to transform an image
into an electric image. In the process of reading the
value in the image, CCD sensors supply high-quality,
low-noise images. but CCDs consume lots of electric
power. CMOSs operate on lower voltage and therefore
consume much less power. So CMOS have much longer
battery life than CCDs.
Other difference between these two sensors is that
the manufacturing costs of CCD much more expensive than
CMOS.
Based on these differences,. There is a higher image
quality but higher power consumption (CCD) compared with
lower image quality but longer power consumption (CMOS).
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What is PAL. NTSC and Secam? |
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PAL , NTSC, and Secam is mode of receive the signal.
NTSC (National Television Standards Committee) is a
standard used in North America and Japan . PAL a
standard used almost everywhere else in the world, SECAM
is used separated around the world and can be found in
France, parts of Greece, Eastern Europe, Russia, Africa
and a few other parts of the world.
If your TV/VCR/camcorder support multi-systems, you can
use either PAL or NTSC camera
NTSC and PAL standard are not interchangeable. For
example, you can't display video input from a PAL camera
on a NTSC |
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What is the camera resolution and Lux mean?
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Resolution is a measurement unit of the camera's
clarity. The resolution is high, the camera image is
better clearer. "Lux" can affect account of light .If
you want see clear under the low light, the more lower
the "Lux" ,the more better one. |
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Do you supply OEM or ODM work? |
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Yes, we can supply both kinds of works. You just send us
your art work and logo we can make it as you want. But
this has minimum quantity limited. Above attached work
's expenses you should bear ( Negotiation) |
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Do you offer free sample ? |
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As our first customer we do not give any free sample to
them . The sample charge will give back when you order
bigger quantity again. |
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