CCTV Security Camera Buying Guide

Security is a big issue for the average home owner as it is for a merchant dealing with vandals threading to stall his livelihood with their dangerous gimmicks. Crime on the streets have become rampant, somewhere deep within us, a mistrust has started raising its ugly head, Mistrust for the common bystander, the door-to-door salesman, the gardener and almost anybody we do not recognize. A merchant has to deal with his customers and keep a keen eye over his merchandise which is not possible unless he has CCTV security cameras installed inside his shop. But there are a few things everyone needs to know before buying security cameras, we focus on a few of those:


1. Fixed or Pan/Tilt/Zoom

The first thing that you would want to clarify is whether you need fixed camera or one that can be panned, tilted zoomed in and out electronically with a few manoeuvres of the joy stick. If you have a wide lawn around your house and you want to keep an eye on every inch of it, then you will need a PTZ camera. But if you have a small range, than a fixed camera will do the job wonderfully.


2. How far do you want to see?

This is another thing that has to be decided before buying the camera. The size of the lens is the biggest factor in this. Bigger the lens, further you will be able to see with your security camera. Usually the distance is inversely proportional to the angle of view. If you want to survey a wide area, buy a lens that has a small size, possible 3.6 mm or 5mm. Larger lens have a very narrow angle view.


3. What is Infrared, do you need it?

Probably not. Infrared allows you to see in the dark. So unless you need to watch over an area in the dark (eg: your courtyard or your car garage), you do not spend the extra money on these cameras. The technology makes it costlier than simple ones.
Almost all CCTV cameras have secondary power options, this is also true for infrareds. With or without electricity, these cameras will light up the entire area clearly, making it possible for you to see everything that is happening out there in the dark. Infrared is emitted by LEDs installed in the camera and detected when it bounces off the surface of an object.
CCTV security cameras with low light sensitivity are also a good alternative. This will see even in the least of light, but they will fail when it is pitch dark.


4. Is battery backup a necessity or fancy extra?

Batteries are so important that most security cameras have these inbuilt in them these days. Electricity failure during the evening or sometimes at night is not something new for an Indian. You need to have power back available so that your cameras keep watching and recording everything, keeping you safe even in pitch black dark!


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Keywords: cctv camera, cctv security cameras

By: akshita

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