J S Security & Electrical have been installing CCTV systems for almost 20 years. We have a vast knowledge of CCTV and are able to offer a bespoke package to your requirements and budget.
For more information, please call us on 0191 416 9078 to discuss your requirements. If you are unfamiliar with CCTV, basic information regarding camera types, DVRs and monitors information can be found below
External Vandal Dome.
These cameras are ideally suited to external use where a camera is vulnerable to vandalism. They comprise of a sturdy metal housing with a toughened polycarbonate dome which protects the camera. External Vandal Domes are also IP66 rated so resist water ingress.
External Housed Cameras. These cameras, as the name suggests, are housed in a weatherproof housing. These are most suited to external applications either mounted on a pole or used in conjunction with a wall bracket. Their main advantage is that there are a vast range of lenses available to suit the application.
External IR Cameras. These cameras are IP6 rated and for external use for areas with little or no artificial light source. They have built in IR LED's which can illuminate up to a 20m area for better low light performance
An external PTZ camera is usually used to provide coverage of large areas. They can be wall or pole mounted to provided a 360 degree coverage area. They are ideally suited where general observation would suffice as they can be controlled by a keyboard to pan round & zoom in and out.
Internal Dome Cameras.
These cameras are ideally suited to shops and other business premises where coverage inside a building is needed. They're discreet and are designed to be used indoors only. They're usually reliant on good ambient light levels to produce optimum picture quality. They're available in fixed and vari-focal lens varieties.
Wide Dynamic Range Cameras.
These cameras automatically reduce bright areas of an image and enhance dark areas to give a balanced image.
For example, a camera is situated inside a shop covering an entrance door. If the door is opened during the daytime, usually, the camera would see the brighter area outside and try and reduce the brightness of the image. The problem with that is the foreground image is darkened so much, that anyone entering the building would almost be a silhouette.
A wide dynamic range camera combats this by reducing the brightness of the background image, whilst simultaneously brightening up the would be darkened foreground resulting in a balanced image.
- The DVR, or, Digital Video Recorder, captures video footage that are stored securely on an internal hard drive. Unlike older VCR CCTV video recorders, digital recordings are easy to retrieve and do not degrade over time. The main advantage is that you no longer have to store multiple bulky VHS tapes as everything is stored on an internal hard drive, typically, they're available in storage sizes ranging from 500GB to 4TB+.
- DVRs are available in 4, 8 or 16 channels meaning that either, 4, 8 or 16 cameras can be simultaneously recorded and footage played back depending on the model model.
- Most have a VGA monitor output so a conventional TFT monitor can be connected, this saves having an older style. bulky CRT monitor taking up a considerable amount of space.
- All of the DVRs we supply have a LAN connection that, when connected to a broadband router, can be viewed remotely. Please note that a static IP address is sometimes required for remote viewing on some budget DVR models, the static IP can usually be obtained via your broadband provider for a small fee. The higher range DVRs have a built in dynamic ddns service which makes remote viewing and playback almost plug & play. The advantage is that no static IP address is needed.
- Most DVRs we supply are smart phone compatible. Apps are usually available for free for both iPhone and Android app stores to enable remote viewing and playback proving you have a 3G or Wifi connection.
- The most popular monitor type that can be used is a conventional TFT monitor, the advantage over the older CRT monitors are they are cheaper to buy, more economical to run, offer good resolution and good value for money.
- Older style CRT monitor are also available, they offer better picture quality than an entry level TFT monitor, but they usually cost considerably more. Some DVRs now, have an HDMI output, so if you have a monitor with an HDMI input, you will benefit from better on screen graphics resolution and generally, better quality playback footage depending on the quality of the cameras.