at CCTVSTOREUK.COM, 27-35 Brows Lane, Liverpool, L37 2HT United Kingdom
PROFESSIONAL AND HOME CCTV SUPPLIERS
CCTVSTOREUK.COM can supply a full range of security products, such as CCTV cameras, DVRs and also DIY plug-and-play kits for self install. CCTVSTOREUK.COM has a full range of over 200 individual CCTV cameras, network IP cameras, HD-SDI cameras, and specialist CCTV cameras such as ANPR cameras. We dont have any hidden charges and all prices quoted include VAT. CCTVSTOREUK.COM can ship stock items on next day DHL courier service to your door. We can only represent a small selection of our products on this site so please do not hesitate to ask us for a quote, you wont be disappointed.
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Our best advice on CCTV - meet Police and Court Requirements Avoid D1 and CIF analogue based and budget systems. If using 960H systems ensure your cameras are strategically placed (low down) in order to make any evidence meet the updated guidelines. Steer clear of CCTV cameras which do not have a quality recognised name branded image sensor e.g. SONY, Panasonic etc. Cheap cameras have flooded the UK market with non branded poor quality image sensors resulting in poor quality video. Always ensure your installer performs a full survey prior to quoting you for a system and is familiar with the latest Home Office CCTV Manual so your system meets the current requirements, else your evidence will not be admissible as evidence in court. Be cautious of marketing focused on for example the IR (infra red) distance. More IR is not better as a subject approaches a camera their features become whiter and over contrast to the point they may appear fully white and featureless at close range at night. Only use CCTV cameras with Smart IR which adjust settings to match the current picture situation. More TVL (TV Lines) resolution does not mean a better picture. Poor quality or non branded camera image sensors can produce a high resolution, however image quality consists of badly processed TV lines. Try different cameras side by side under different conditions. Quality image sensors will allow minor tweaks in picture processing just like any high end camera. Purchase from a reputable and experienced CCTV Specialist who can advise you on lens types and image sensors and can discuss your specific requirements in detail. We have yet to find a CCTV kit from any high street retailer that is fit for purpose. The minimum spec of any system to consider is 960H with careful camera placement using quality cameras, but we recommend 720P or 1080P where price permits in order for any video footage to be usable should a crime be committed. IP CCTV Systems meet all requirements, are easier to cable, and are the obvious choice for new installs or upgrading exiting CCTV systems. Prices of such systems are now easily achievable to the average user.
5 Fatal Mistakes When Buying CCTV The Police have stated that 80% of CCTV camera systems are not fit for purpose. Over 90% of CCTV systems are illegal under the DPA. Most of the current CCTV systems currently on sale by the big high street (non specialist) CCTV suppliers are not fit for purpose following the latest Home Office Guidance and minimum Police requirements. The vast majority of these were installed by "professional installation companies", however are now obsolete in the event of a crime. Your only option is to use a High Definition (not high resolution) 720p or 1080P IP based CCTV camera system to meet the current requirements. Most current CCTV systems using BNC cables (siamese) resolution is now below the minimum requirements (see below). Choosing the Wrong DVR or NVR recorder Installing a system with too low a resolution again means that your system will be of little use in a Police prosecution. Until 2009 you could simply evaluate the recognition standard of a CCTV system based on what percentage of the screen a person filled. But with the latest standard from the Home Office things are slightly more complicated. These percentages are based on the PAL televisions standard which was used for most systems. Now, however, there are a number of recording resolution formats available and the above sizes depend upon the quality of each format. If you are using a CCTV system along the same lines of analogue TV (called the PAL system) and wish to Identify an Unknown Person they need to be 100% of screen height and to Recognise a Known Person then must be a minimum of 50% of the height of the screen etc. CIF or D1 Resolution Police Requirements However if you have a recorder that produces pictures in 4xCIF or D1, because the resolution is better than PAL to identify An Unknown Person they only need to be 70% of screen height and to Recognise a Known Person they must be a minimum of 35% of the height of the screen. The problem comes if you purchase a unit that only records in 2CIF or CIF. Now a person has to be 70% height of screen before they are recognisable and it is almost impossible to meet the Identify standard as they have to fill 139% of the screen. This also means that the area you can cover if attempting to recognise a person drops from a screen width (the width of the area viewed on the screen at the point that the target person is standing) drops from 4.5m to 3.2m. The Home Office CCTV Manual states that while recording one picture per second per camera is adequate where there is little activity, 6 to 12 pictures per second per camera should be recorded where there is busy activity such as doorways. Choosing the Wrong Lens If you or your installation company choose the wrong lens and there is an 80% chance the Police will not be able to use your pictures in court. The biggest problem with CCTV installations is that the wrong lens is chosen. This normally results in people being too small to recognise and with CCTV pictures only being around 40k each in size, and not the 10 million you get on your HD photo camera, you cannot electronically zoom in. To be able to recognise a 1.7m person on a standard CCTV system they must be at least 50% height of screen (the standards of Detect and Observe are not good enough to recognise person simply to observe what a group is doing or detect a person is present in the picture). These standards are set out in the Home Office Operational Manual for CCTV – page 8 and used as a reference by the police and the courts. Installing an Illegal System Install a system that does not comply with the Data Protection Act (DPA) and it could result in a £50,000 fine / criminal record, unlimited civil damages and CCTV evidence that is challenged in court.