What are the advantages of using a wireless security system?
Today, almost 70% persons prefer a wireless security system. The main reason of this rapid increment in the demand of wireless systems is that it can be easily installed on walls and there are no wires to hide. You just have to connect the receiver to VCR or TV you already have. That's why everyone prefer a wireless security camera or systems instead of using the other systems having wires.
What is CCTV?
A CCTV (Closed Circuit TeleVision) is a video magnification system consisting of a video camera connected to a video screen provides gray scale, high contrast, false colors, inverse video display, natural colors, and/or control of contrast level and brightness. There are two ways for achieving Video magnification - from small camera imager, electronic conversion to the larger display screen and the optical focal adjustment effect of the cameras zoom lens.
How Night Vision Camera work?
There are two methods by which Night Vision Camera Works.
1. Light Amplification : In this system very small amount of light in dark is captured by camera and then amplified to a level where a human can see those images easily.
2. Thermal Imaging : In this technique thermal radiations emitted by human body
is received by infrared receptors and then converted to black and white images.
Which type of Security Camera is best for wide area surveillance?
PTZ security camera cover very wide area with its Pan Tilt and Zoom feature and that is best suit for wide angle capturing.
How does Wireless Camera work ?
Wireless camera convert images to electrical signals then an inbuilt transmitter converts those signals to electromagnetic frequency and transmit into air. At other a signal receptor receive those signal and convert them back to electrical signal which is then displayed in TV or Recorded into DVR.
What are some other common uses of CCTV?
The term "Closed Circuit TV" does in fact most often refer to security and surveillance camera systems. There are various other uses of CCTV
- Live on-site video displays of arena sports and concerts.
- Pay-per-view telecasts of boxing and pro wrestling.
- Commonly used in
- Grocery Stores
- Airports
- Hospitals
- Racetracks
- Schools
- Malls
- Municipal Buildings.
What is Auto-Iris Lens?
For produce consistent video signals in scenes with varying light levels we use Auto-Iris Lens. It makes surveillance more reliable in areas that would otherwise be compromised.
What does Varifocal Lens mean?
When security camera surveys a distant point varifocal lenses are ideal in that situations. Either manually or automatically we can adjust the zoom and focus of these lenses.
Can outdoor cameras be used indoors or vice versa?
You can use outdoor cameras for indoor purpose but indoor cameras cannot be used outdoor. Some security cameras should not be used outdoors unless protected completely from the elements.
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