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CCTV Solutions

Different Cameras - Different Applications - Different Results

Pan-Tilt-Zoom Cameras for active viewing adjustments.

Turret Cameras for easy viewing adjustments.

Dome Cameras for fixed viewing purposes.

Fish-Eye Lenses provide 180° view.

Panoramic Viewing Cameras for large viewing coverage.

IP Facial Webcams for administration purposes.

Facial Recognition Cameras for advanced intruder security.

Bullet Cameras for longer focal lengths.

High Frame Rate Cameras for fast moving subjects.

ANPR Cameras used to keep a log on vehicles accessing your business premises.

A small sample of Cotel CCTV equipment installed and maintained for a wide range of customers.

Whatever the application, Cotel can offer a Great Solution.

Cotel can install CCTV and radio systems and solutions to support the security of your business.

To cover a vast site on Dartmoor, a fixed microwave link system was installed. With such connection, operators could view live footage while using the Pan/Tilt/Zoom functions of the camera.

Cotel can install CCTV and radio systems and solutions to support the security of your business.
Cotel can install CCTV and radio systems and solutions to support the security of your business.
Cotel can install CCTV and radio systems and solutions to support the security of your business.

Remote Network Access

For owners and managers that wish to keep an eye on their assets whatever the time of day, remote accessing your CCTV infrastructure is important. With the latest video recorders, Cotel "Connect" is an amazing way to have an inside view when you're out and about.

Understanding Quality

What you intend on recording is important. The detail you wish to achieve can only be done by selecting the right camera, the right Network Video Recorder and the right monitor. The resolution is the amount of detail the CCTV unit can capture. The higher the number of MP (mega pixels), the higher the amount of detail that will appear within the picture. Also, bear in mind that inexpensive image sensors will produce poor quality images that lack significant detail, have darkened areas & whiteness, and lack moving object clarity.

Choosing the highest detailed cameras will have a lower frame rate. Frame rate is measured in seconds and is simply how many still images are captured in 1 second. 25 Frames Per Second is high enough to visualise moving video. You may of heard other terms to do with quality like the Codec (Coder-Decoder) - this is simply a way of saving the motion video; of course more up-to-date codecs use less space to store video, allowing you to use less storage space. An example of the difference in detail would be to compare "4K" video with "1080P Full HD" video - there is twice the number of pixels in a 4K system, providing improved picture definition over longer distances. Below is a comparison example.

Call Cotel to discuss your operational requirements. We can provide a CCTV solution to exceed your expectations.


What is Analogue CCTV?

Originally, analogue CCTV was distributed by means of coaxial cable. With the invention and development of the internet, IP cameras are quickly replacing traditional analogue cameras due to their better quality and higher degree of operational flexibility.

I have a working Analogue CCTV, can I just change the cameras?

Yes, because of the wide use of analogue CCTV and the use of coaxial cabling, CCTV manufacturers have continued to develop ways of sending HD video down analogue lines.

Can I view my live CCTV footage remotely?

Yes. A digital Cotel "Connect" system allows the digital CCTV footage to be sent to whatever device you prefer, computer or smartphone.

Can IP cameras just be installed with existing analogue cables?

No. Because the transmission technology (sending of data) has changed, IP cameras require Ethernet cable consisting of eight individual wires in order to operate correctly.

What is PTZ?

Pan, Tilt and Zoom. In the literal sense it allows the user to remotely adjust what the camera is looking at; by mouse, remote control or joystick. PTZ cameras are much more expensive but of course have some brilliant features. PTZ cameras can also be set up to automatically adjust to a preset programme at certain times or intervals.

What is PoE?

Power over Ethernet is a collection of standards that enable equipment to only require 1 cable for data and power. This means no more separate power cables for cameras.

What is a camera Iris?

The camera's Iris is the aperture that adjusts to control the level of light that reaches the image sensor. The iris is controlled by an image signal processor that ensures images are clear, sharp and have good contrast.

What is WDR?

Wide Dynamic Range, the camera's ability to provide output video that shows low light areas and very bright areas at the same contrast level.

Passive infrared Cameras

PIR (Passive InfraRed) Cameras are a type of CCTV camera that operate alongside PIR Sensors. The PIR Sensors detect an individuals movement and once this is detected, they will activate the associated cameras to film the event. The cameras will then standby once they have captured the event, which saves power and storage as they won't be recording an empty scene.

To find out more about PIR Sensors and cameras, click here.