Brief Introduction About CCTV
Closed Circuit Television (CCTV) is a system which does not broadcast TV signals to the entire public but it transmits the signals to a specific monitor, thus, it is accessible only by a limited number of people. CCTVs are being used all across the world for a number of purposes. However, security is one of the most important aspects why CCTVs have gone high in their popularity in a short time span.
Enumerated below are a few of the guiding principles that can help a person in selecting a Closed Circuit Television – in the right way!
Any camera’s actual upshots are primarily dependent on its sensitivity and resolution. Sensitivity is basically the ability of a camera to respond to the light levels.
Resolution describes the picture detail which an image holds. Measured by the number of TV lines that the camera is proficient of creating, a camera’s resolution is determined by its pixels. If you wish to get better pictures without blurriness, then a camera with a high resolution should be your first preference.
Indoor or Outdoor Cameras – What you need to know about them
First, you need to assess your requirement – whether you need a camera inside your home or office to keep a check on the inside events, or for securing the premises from the outside.
There are several types of indoor cameras available in the market, so pick the right one for you after carefully analysing the specification of them all.
If you need to have a CCTV for the outdoors, then it will be good to go for such a camera which is weather resistant. This becomes all the more necessary when the camera is not mounted in an enclosure.
One of the most important specifications that you need to consider while choosing the right camera for your place is the light condition which is there. You should clearly assess that whether your chosen camera has to be installed in a low light area or an area where there is a high level of light.
Light levels are generally measured in Lux, which is represented as lx. It is basically one lumen of light density per square meter.
The usual light levels are:
- Full Summer Sunlight: 50,000 Lux
- Dull Daylight: 10,000 Lux
- Shop/Office environment: 500 Lux
- Dawn/Dusk: 1 – 10 Lux
- Main Street Lighting: 30 Lux
- Side Street Lighting: 0.5 – 3 Lux
Consider all these points and choose one of the best CCTV cameras for your place to help in keeping it protecteWhen it comes to deciding which camera to buy for your home or office, it is important to keep in mind that your camera selection should not just be based on the notion that you need a picture. In fact, it is important to keep the lighting levels in mind before going for a particular camera. Make sure that the environment in which the security system is installed has almost 10 times the quoted minimum scene illumination, if you need great results. It is good to know that many cameras can adjust excellently with excess light in the backdrop. But the problem arises when there is not sufficient light to produce a good and clear picture.