IP based surveillance is digital technology here, affordable and available now. 
It works by turning images and audio into data then transmitting this data over a network or Internet connection. 
The ultimate benefit of this over analogue CCTV systems is greater flexibility, better performance and easier installation.
Only in the last few yearsIP CCTV has matured, leading to the developments in Megapixel Cameras offering 5mp+ resoluttion for surveillance making face recognition & number plate recognition easy and affordable.

IP vs Analogue

FLEXIBILITY

IP CCTV systems do not require local recording, they can transmit their images across Local Networks, the Internet and Wide Area Networks to a central location, where they can be recorded, viewed and managed.
Analogue CCTV system is designed to record security cameras locally only. This means that if you have 2 or more premises, then each will require a Recording Device, this makes managing larger systems harder and not very cost effective.

PERFORMANCE

IP CCTV systems convert all images to data and have no theoretical limit to resolution, providing the relevant bandwidth to transmit the images exists. Our IP cameras offer especially high detail precision with Megapixel resolution, at least 3x better quality than standard analogue cameras. 
Analogue CCTV systems are based on PAL analogue technology. This limits the amount of evidential quality images a single analogue camera can supply, or put another way the size of area it can watch. Resulting in an increase in the number of cameras required to watch an area, which increases costs and causes building aesthetics issues.

INSTALLATION & POWER

IP CCTV systems run over existing IP networks, wired or wireless, this makes wiring IP CCTV systems simple, causing less disruption, reducing the time required to install them and minimizing unsightly cables. For anyone familiar with networking, setting up an IP based system is simple with intuitive operation and evaluation. Simple 1 camera systems only require an IP Camera connected to a network/internet connection, and they can then be viewed by a PC using Internet Explorer. If POE (Power over Ethernet) IP cameras and networks are used then the IP CCTV cameras do not even need separate power, they can be powered via the network cable.
Analogue CCTV systems have their own proprietary cabling. Each camera has to be wired back to the DVR or Monitor using RG59 cable or similar Video Signal Cable and each camera has to be connected to a power source. This makes new installations and additions to existing installations both expensive and slow to implement.

INTEGRATION

IP CCTV systems communicate using IP, allowing them to integrate and co-exist on the same network/cabling as other IP based systems, such as Access Control and IP Phone Systems etc... Integration also means that these different systems can work together, for example an IP camera picking up movement will be able to transmit images of that movement to an IP Video Phone automatically. IP systems also allow the direct use of IP-based services as standard such as e-mail or image sending via FTP.
Analogue CCTV systems are designed to be closed circuit systems, this means that they do not integrate easily with Access Control, Intruder Alarm or other systems that are found in buildings. Each system requires it own cabling infrastructure and each device on each system is unable to communicate with other devices.
 
VALUE

Simple 1 camera systems only require an IP Camera connected to a network/internet connection, and they can then be viewed by a PC using Internet Explorer. Our range offers a very affordable range of cameras, with pricing equivalent to analogue CCTV systems. Plus with installation and setup requiring little time in single and multiple sites, IP Systems can work out to be far more economical than traditional Analogue solutions.
nalogue CCTV systems are excellent value for money, and though the general consensus is that IP CCTV is more expensive, this is not true for every scenario. IP CCTV represents an investment in to a future technology and infrastructure, whereas analogue CCTV systems are based on old technology.