The Complete Guide to Buying a CCTV Security Camera on eBay

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The Complete Guide to Buying a CCTV Security Camera on eBay

The advent of new technologies made it possible for video surveillance systems to be available for individuals and professionals alike, regardless of their budget. Whether one is looking to monitor a home or a business, there are several factors that need to be taken into account before buying a CCTV security camera on eBay. As these days almost everything can be monitored from distance, from a house to a baby, buyers should make sure they know for sure what kind of CCTV security camera they need.

CCTV security cameras have several functions, the most important of them being the detection of intruders, alert, and saving the images for a later identification of the intruders. They also work well when it comes to deterring intruders. Regardless of the reason one may wish to buy a CCTV camera on eBay, learning more about the way these security devices work can be helpful when it comes to making a choice.

Technical Specifications of CCTV Security Cameras

Different CCTV security cameras come with different technical specifications. The best way to find the appropriate model for one’s needs on eBay is to read the product descriptions carefully and compare several devices until finding the right one. The main technical specifications regard the image resolution, camera’s angle of view, night mode recording, and playback options.

CCTV Camera Quality of Image

CCTV cameras are available in both analogue and digital formats, but most of the high-end models are digital. For digital CCTV cameras the image quality is usually determined by the number of colour lines. The higher the number of lines, the better the quality of image is. A standard resolution starts from 330 lines, while for a very high resolution one may need up to 550 lines. The display resolution is also an important factor in determining the image quality of a CCTV security camera. A good security camera has a resolution of at least 640 by 480 megapixels, while a very high resolution may be as high as 1600 by 1200 megapixels.

Types of CCTV Camera Lenses

CCTV security cameras have different lenses and they can influence the quality of the image. Lenses are available in sizes varying from 2.5 millimetres to 100 millimetres, which correspond to opening angles of 107 to 2.8 degrees. The larger the size of the target, the narrower the angle of view needs to be in order to film remote areas up close. Some of the most popular types of objectives are 3.6 millimetres, as they are designed to be installed in a corner and cover a visual field of 90 degrees, being ideal for monitoring large areas.

CCTV Camera Brightness

The brightness of a CCTV camera reflects the amount of light and can influence the quality of the image significantly. Brightness is measured in lux, with 0 lux corresponding to total darkness and 50,000 lux to maximum brightness. Before buying a CCTV camera on eBay, users should evaluate the brightness of the area for which they need surveillance in order to ensure they get the best picture quality. A good choice would be an infrared camera, which has the ability to automatically switch to night mode when lighting is poor.

CCTV Camera Recording and Playback

As buyers cannot keep their eyes fixed on a monitor all day long, they should take into account the way the security camera records the images for later replay. Analogue CCTV security cameras provide a composite video signal so buyers can view the image on a TV or monitor with a VGA video converter. It is also possible to view images on a computer that has a video capture card. If one has a DVR, there are Ethernet and composite video outputs for connecting one or more TV screens and a computer. Some cameras also offer the possibility of viewing the images in real time on the Internet while recording them at the same time.

Digital CCTV cameras are more frequent than analogue security cameras and they record the images in a slightly different way. They compress the images into a specific file format and store them on a hard disk drive. The sharpness of the recorded images usually depends on the compression mode, as well as on the resolution and number of frames per second.

Fixed vs. Controllable CCTV Security Cameras

This aspect is important especially when it comes to the price of a CCTV security camera. Having a controllable CCTV camera is actually useful only if there is an operator behind it. There are several autonomous PTZ (Pan Tilt Zoom) cameras available on the market, but it is generally better to focus on several fixed security cameras covering the same area as a controllable camera would. Most controllable CCTV security cameras are especially designed for outdoor use.

Types of CCTV Security Cameras

CCTV security cameras are available in a wide variety of styles, each of them being suitable for a certain set of surveillance needs. The main factor to take into account when choosing the type of CCTV security cameras is whether one needs an indoor or outdoor model. Indoor security cameras are available in a wide range of models and sizes. Some of the most popular types of CCTV security cameras suitable for indoor use include dome cameras, spy cameras, mini cameras, day/night cameras, infrared cameras, and anti-vandal cameras. Each of these types is suitable for shrivelling small to medium areas and most of them offer a good level of discretion.

Outdoor CCTV security cameras are similar to the indoor ones, but they are additionally equipped with protective casings that allow them to perform well in any kind of weather. Buyers can opt for regular security cameras that feature a protecting casing or for models that are built-in inside a protective case.

Type of Security Camera

Buyer’s Needs

Wireless CCTV Camera

discrete type of camera; easy to add to an existing CCTV security system

Day/Night CCTV Camera

can identify the brightness of the target area; automatically switch to day mode or night mode depending on the light level detected

Infrared CCTV Camera

night camera only

Mini CCTV Camera

discrete camera; ideal for residential use; small enough to go unnoticed or be hidden in objects

Dummy CCTV Camera

deterrence function only

IP Surveillance Camera

monitoring a room or area from a PC

Webcam CCTV

allows networking; has numerous features and applications

When choosing a CCTV security camera on eBay, buyers should be aware that not all the types mentioned above offer the same image quality, so they should make sure they read all the technical specification of a certain model before buying it.

How to Find a CCTV Security Camera on eBay

A CCTV camera is one of the best ways to make sure your home is safe when you are away. Security cameras are also ideal for those who are interested in keeping an eye on their children while at work. Regardless of the reason for which you may need a CCTV security camera, you should learn as much as possible about different types of security devices and their technical characteristics before making a purchase.

Browsing through a large number of CCTV security cameras is a good way to discover a device that would be suitable for your needs. eBay is the perfect place to do so, not only because you can find a large palette of models on the website, but also because it is very easy to find what you need here. By simply typing the words "CCTV security camera" into eBay’s search bar, you get hundreds of relevant results in all styles and sizes. All you need to do is browse the selection and choose the model that best suits your needs.

Many buyers consider that eBay’s selection is too large and if you are one of them, you can easily narrow down the results according to your own preferences, including brands, prices, location, styles, and more. You should also keep in mind that each product is different, so reading the product description carefully might always be a good idea when shopping for CCTV security cameras on eBay.


Installing a CCTV security camera is one of the best ways to protect a home or a business from intruders. There are options available for any budget and buyers should keep in mind that the price of a security system depends on many factors, such as the type and number of cameras, applications, and features. There may be other expenses necessary and buyers should consider them as well. These often include installation, maintenance, and troubleshooting.

Buyers opting for CCTV security cameras should also know that these devices can be supplemented by other means of security, such as security doors or shutters to deter burglars, remote monitoring, and system alarms that can scare potential intruders away. Choosing the best CCTV camera for a home or business is not a very easy thing to do, especially because of the large number of options available. Shopping for a CCTV camera on eBay can, however, make the search easier.

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