Security Camera Buying Guide

Make the Right Choice While Looking for CCTV Security Camera

There are normally six things to look at before you choose a CCTV security systems:

1. Camera Selection
2. Recording Options
3. Detecting
4. Time and Date Stamping
5. Cable and Connectors
6. Camera Protection

1.0 Camera Selection
1.1 Location

Is the camera must be placed indoors or outdoors? If outdoors then you need to ensure that it is appropriate to the environmental conditions that are likely to occur as rain, snow, sun-glare, low light, etc. Outdoor CCTV camera security systems Outdoor cameras should be considered either as weatherproof or installed in a special enclosure to provide protection. All outdoor CCTV, cameras provided by Voltek is weatherproof and cable entry points are sealed. The wires are long enough to enable connections to be made inside the building.
1.2 light levels

Choosing the right camera based on the amount of available light is very important for an effective security system. A common color or even black and white camera will not produce very good pictures in low light although monochrome will outperform a corresponding color one. Solutions available to poor lighting conditions may include:

* B & W cameras with built-in IR illumination
* Color day / night cameras
* Use of additional security lighting
* Use a separate IR illumination in conjunction with a monochrome camera. When using IR illumination ensures that the range of illuminators is sufficient for your needs.

Light levels are usually measured in lux, and although full daylight can be around 10,000 lux, twilight be as low as 1-10 lux, complete darkness is 0 lux, and street lighting may also be less than 1 lux in some cases. The closer a camera is rated at 0 lux better its performance in low light levels.

1.3 Color, black & white or Day / Night Cameras

B & W cameras generally provide better image quality than color them at lower light levels. They are also usually cheaper than color them with similar specifications. Color cameras require the presence of good lighting and will generally provide better recognition capability. Day Night cameras offer the best of both worlds in an external environment. They function as color cameras during the day (or in good lighting conditions) and automatically switch to B & W when light falls. All Voltek Day Night cameras come with built-in infrared illuminators, which allows the cameras to see in the dark.

1.4 Wired or wireless

Wireless CCTV cameras are easier to install. There are no cables to run from the camera to the receiver, and they are ideal for temporary use, quick implementation, or where running cable is not desirable. TheDay Night Wireless Security CCTV cameras cameras do however require a power source, and although most will have the opportunity to be powered by batteries they have a very long life - a matter of hours in some cases. Where possible, the cameras will be operated by mains. Typical range of wireless camera systems is 100m free space, but this may decrease significantly to about 20 feet in a typical household environment. In some cases there is also potential for interference when using wireless systems.

1.5 Visible Deterrence or covert / discreet surveillance

For visible deterrent use of larger cameras located in the traditional system is ideal. For covert or unobtrusive applications Voltek delivery Discreet or concealed CCTV security cameras:

* Very small and can be installed in hidden places, or
* The enclosures are designed to hide the presence of a camera.

Many of the cameras manufactured by Voltek is both stylish and discreet in design of their enclosures, and this makes them very suitable for private homes.
1.6 Audio

If the ability to monitor or record sound is important so the camera must have a built-in microphone. This allows one-way audio monitoring. Some cameras such SuperCam2 from Voltek has a 2-way speech facility that provides you to talk to your visitor without answering the door.
1.7 Camera Display Quality

Resolution, size and type of camera sensor will affect quality of the visible image.

Resolution - This is expressed as the number of TV lines (TVL), the camera is able to produce. The higher the TVL value higher resolution and thereby the quality of the images. A typical entry-level camera will be around 300 TVL with higher resolution cameras with a value of 400 + TVL.

Size - A larger image sensor will provide better image definition than a smaller sensor. For example, a 1 / 3 "image sensor will produce a better picture than a 1 / 4 "sensor.

Type - There are 2 types of image sensor. CMOS sensors are mass-produced and used in entry-level cameras to provide cost savings. CCD sensors are used in professional cameras and provide a higher quality image.

It is important to remember that the quality of the recorder will also influence the quality of CCTV recordings. For example, if you use a high resolution camera, but a low-resolution recording as CCTV footage recorded will still be low resolution.

1.8 Single Camera or Multiple Camera Systems

Do you need to protect and watch a single area or multiple areas? If you are likely to require Protection of additional areas at a later date then consider buying a system that can be expanded as needed. Voltek has a number of products which will allow you to connect and use up to 4, 8 or even 16 cameras. These include:

Shifters - The devices which provide a multi-camera system to switch between different cameras. This shift can be done in several ways:

* Manually by users
* Automatic sequential switching between cameras
* In determining the transport of a PIR camera.

More Security CCTV cameras Shifters cameras are connected to the switch and output switch can be viewed on a TV or it can be connected directly to the recording device such as VCR or DVD recorder. CCTV Switchers can typically allow connection of up to 4 or 8 cameras. The Spectrum control units from Voltek also has additional built-in functionality automatic video activation and time and date stamp. It is important to remember, however, to use a switcher will only allow you to watch and record one camera at a time.

Stand Alone DVRs - Do Digital video recorders allow one or more camera systems for viewing and / or recorded simultaneously.

Voltek delivers a range of 4, 8 and 16 channel DVR allows you to install a comprehensive CCTV system.

PC-based Security Systems - These use a PCI card which is installed inside the computer. They will make it possible to connect up to 4, 8 or 16 cameras and help make your existing PC into a sophisticated CCTV system.

2.0 Recording Options

If you want to be able to record your CCTV footage then following factors must be considered:

* The maximum length of recording required
* The quality of the recording
* Method for registration By:
o Continuous
o Manual
o Event Lead - ie when your system detects movement
* Recording Equipment
o Analog
o Digital
* Allows for storage, retrieval and transmission of CCTV footage

2.1 Domestic VCR

This is a simple and inexpensive solution that can give good quality recordings recorded in real time. Video recorders can be used to provide continuous recording of up to 8 hours or event led recording when used with a PIR camera and a VCR activator. When using PIR cameras to perform event led shots you have to consider start-up time for the VCR. For example, if the recorder is a few seconds to actually start recording whenever it receives the signal from the camera so that cases may have gone before it is recorded (a person walking across of camera range may have crossed the field before the picture was taken on tape). In these situations a separate PIR detector can be used to trigger recording and resolving this problem. The other thing to remember is that you can not set the video to record one channel while the camera input is selected.

2.2 Domestic DVD recorder

These operate on a principle similar to the domestic VCR but offers the additional advantages:

* Higher quality digital recording
* Increased storage capacity
* Improved search and retrieval capabilities

But the disk only recorders start-up time before the recording actually starts is generally longer than a VCR. For To overcome this it is recommended that recorders with integrated hard disk is used

2.3 Standalone Digital Video Recorders

These are quickly becoming the most popular method of recording CCTV footage. Essentially a DVR is a standalone piece of hardware that is designed exclusively for recording CCTV footage. It has a number ofDigital security camera recorder clear advantages over traditional analog systems, and these include:

* Storage Capacity - days, weeks and even months in high resolution recording is possible using large hard disks
* Consistent quality recording - no degradation of picture quality, however many you want to overwrite the recording device or how long Saving pictures
* View and download - Quick and easy access to recordings due to digital format
* Transfer and Storage - The digital format allows for easy transfer and storage of recordings. Transfer and storage capacity is further strengthened by DVRs with built-in CD writers and USB ports.
* Remote Access - Many DVRs can Remote access from anywhere in the world through the use of a remote PC
* Multiplexed Recording - Ability to watch and record multiple cameras simultaneously.

2.4 PCI Card

These are digital video capture cards can be installed inside your existing PC to allow connection of multiple cameras. Functionality and benefits of PCI cards is very similar to that DVR.

3.0 Detection

Even with systems that have a very long recording capacity, it is not always appropriate to record continuously. Event-led recording is a more efficient way to capture the relevant footage and can be achieved by:

3.1 PIR motion detectors

Some cameras have PIR detectors built and for those who lack it is possible to install a separate PIR as part of the overall system. In multiple camera systems Pir the footage shown on screen automatically switch to the field have discovered movement.

3.2 Video Motion Detection

This is used in digital CCTV systems and works by analyzing video signal from a camera. Changes in the signal is recognized as a movement and then used to trigger recording, if required. All Voltek digital systems provide users to select one or more rectangular areas of the screen and only when motion is detected within these areas will begin recording system. Where possible, use of PIR motion detection is preferable for video motion detection, as the more reliable especially for external use.

4.0 Time and Date Stamping

This feature superimposes time and date on your CCTV footage. Does this function really useful to identify when an event took place and was recorded, especially if the footage will be used for evidence purposes. For domestic systems Voltek offers a separate time and date generator that can be added to your system. Spectrum Control CCTV securyty cameras have this capability already built. The plant is also integral to all Voltek range of digital video surveillance systems.

5.0 cable and connector

Security camera cables plug cameras can be connected in a variety of ways. All our internal cameras come with 20m cable and SCART and / or phono connector to plug directly into your TV, VCR or DVD recorder. All of our professional cameras are supplied with 20m cable and BNC connector which will enable into our range of digital recorders. The Voltek camera driver can be extended up to 100m in total by using appropriate extension cords. Coaxial cable with a local power supply the camera can enable the camera to be positioned up to 250m away from the monitor or recording device. Detailed information on connectors and cable for each of the Voltek cameras available on the relevant product page on the website.

6.0 Camera Protection

If your camera is expected to be a target for Vandals and then consider protecting it with one of Voltelen wire cages is a security camera wire cages shell. This not only saves your cameras from Vandalas but protects all evidence collected during the vandal acts.

We at For your home with Voltek really hope the following guide will help you choose the perfect security camera to your homes and gardens

About the Author

We at For your Home are well experienced in helping you make better homes and gardens. You are always welcome to visit our better home and garden online store at http://www.foryourhome.co.uk and our complete home security CCTV cameras systems at http://www.foryourhome.co.uk/home-security/c/1115.html

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8 Camera Security Systems....

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3S 2.0 Megapixel IP Cube Security Camera $219.99 This 2.0 Megapixel IP cube camera from 3S combines the high-resolution video and the smart features of IP with an embedded microphone and speaker, effectively making a video and intercom solution in one. This powerful solution for secured entryways or corrections facilities.This camera includes video processing features to improve the quality of your video and the performance of your camera:3D noise reduction reduces the static that is common with video signals.Blind detection is a tamper notification. It sends an alert of the viewing angle of the cameras changes more than 5%, or if the viewing area has been blocked.Privacy masking allows you to black out areas of the video. It's commonly used in areas where private codes and passwords are being entered. For example, the owner may want the general manager to be able to look at the video of the office, but not see what the owner's codes or passwords are as he types or enters the company safe.Comes with bracket, mounting hardware, quick-start guide, application disk with full manual and software, 2-year warranty and 30-day money-back guarantee.

4 Camera 2.1 Megapixel Day/Night HDcctv Security Camera System $1999.99 This 4 camera HDCCTV system is networkable, allowing simple access to your video security system remotely, via the internet. Watch LIVE video from anywhere in the world on your smartphone or computer. Monitor not included.The 4 channel HD DVR offers advanced features and intuitive, easy-to-use setup menus, giving you the ultimate DVR for flexibility and control. Conveniently export via USB or onto your network in AVI or MP4 format.The 4 high definition indoor bullet cameras feature 2.1 megapixel imaging with 1920 x 1080 resolution along with 3-Dimensional Noise Reduction (3D DNR). 3D DNR automatically provides a more accurate noise reduction. This is based on twice the visual information than conventional field-based types. The video noise is reduced by 30% in low light for a 2 dB improvement in the signal-to-noise ratio. The result is a brighter picture with less noise, even in low light. System includes: 500 GB hard drivePower supplieshigh-grade integrated video/power cablesQuick-start guideComprehensive instruction manual

3S 2.0 Megapixel Day/Night Box Security Camera $299.99 This 3S 2.0 Megapixel IP box camera combines high-quality video with advanced image processing features. 2.0 Megapixel resolution provides highly detailed images at a size of up to 1600 x 1200 pixels, which is equivalent to HDTV image quality. This greatly increases your ability to positively identify people and objects, lets you zoom in on live or recorded video, and saves you money by reducing the number of cameras needed to cover an area.This model allows you to choose a lens, letting you customize your camera to the exact field of view you need.Advanced features include digital I/O for connecting to external sensors and alarms, making it possible for you to be notified of events such as doors opening or motion detection. Combined with two-way audio support, this camera is a powerful solution for secured entryways.Dual codec support gives you the choice of either H.264 or MJPEG compression. H.264 reduces file size without reducing the quality of high-resolution video.This camera features true day/night. During the day the camera uses a physical IR filter to filter out IR light that can cause color shifts. The IR filter is removed during nighttime mode to allow the camera to see in the dark. 3D digital noise reduction (3D-DNR) is an enhancement of traditional DNR technology that incorporates spatial noise reduction along with frame-to-frame noise reduction. Spatial noise reduction compares a pixel with its neighboring pixels to detect and remove unwanted noise found within the frame. It processes the entire image to remove digital artifacts and graininess to enhance image clarity and sharpness.PoE (Power over Ethernet) support allows you to run power to your camera through your Ethernet cable, saving you time and money during installation.The camera comes with mounting hardware, quickstart guide, application disk with full manual and software, 2-year warranty and 30-day money-back guarantee.

3S 2.0 Megapixel Mini IP Dome Security Camera $269.99 This 2.0 Megapixel mini dome camera from 3S includes video processing features to improve the quality of your video and the performance of your camera:3D noise reduction reduces the static that is common with video signals.Blind detection is a tamper notification. It sends an alert of the viewing angle of the cameras changes more than 5%, or if the viewing area has been blocked.Privacy masking allows you to black out areas of the video. It's commonly used in areas where private codes and passwords are being entered. For example, the owner may want the general manager to be able to look at the video of the office, but not see what the owner's codes or passwords are as he types or enters the company safe.Comes with mounting hardware, quick-start guide, application disk with full manual and software, 2-year warranty and 30-day money-back guarantee

3S D1 Resolution 23x Zoom Outdoor Network IP PTZ Security Camera $1399.99 This outdoor network IP PTZ dome security camera from 3S features up to D1 resolution along with a 23x optical zoom (with additional digital zoom capability). The camera provides 720x576 resolution @ 25 fps and 720x480 resolution @ 30 fps. Minimum illumination is 0.1 lux during the day and 0.01 lux at night.. The camera features true day/night capabilities with a mechanical IR-cut filter.Both H.264 and MJPEG codecs are supported along with multi-streaming (for recording, preview, and 3GPP) with up to three video streams: 1 x D1, 1 x CIF, and 1 x QCIF. This PTZ camera supports 220 programmable preset positions in up to 8 groups and a maximum preset position speed of 0° to 500° in under 1 second. The camera pans a full 360° and tilts up to 90°.Video processing functions include privacy masking, motion detection, OSD, and 3D positioning. The speed dome PTZ camera features 3GPP mobile surveillance support, which enables the camera to be viewed from a 3G cell phone or smart phone.The camera housing is IP66 rated making it ideally suited for outdoor use. Camera comes with camera wall bracket, 24V AC power supply, mounting hardware, quick start guide, application disk.

4 Camera 65 Ft IR Day/Night Video Security System $499.99 This easy-to-install, turn-key solution comes complete with everything you need to set up a full-featured video surveillance system, including:4 x weatherproof 65' night-vision color cameras - In darkness or light, these cameras see it all!4-camera H.264 digital video recorder with pre-installed 500GB hard drive - Store weeks of video evidence and offload easily to USB or your network.FREE iPhone or Android application - Monitor your home or business on the go! No setup fees or recurring fees - EVER!Turn-key Security! - Includes remote control, USB mouse, 60' video cables, power supplies, and easy connection instructions.FREE Technical Support - We're here to help you for the lifetime of your productOnline DemoView a live video stream from this system remotely from your computer.InstructionsYou must use Internet Explorer to view the demo. You may need to update your ActiveX settings to access the demo.Go to http://70.132.198.196/ to access the demoLog in with:Username: demoPassword: 1111Click the Open All button in the bottom left of the screen to view all four cameras.Note: Only 10 users can be logged into the system at one time. If you are unable to log in, please try again later.Need help accessing the demo? Try our web demo quick start guide (PDF).

Fake security camera - bullet security camera $24.99 A realistic imitation CCTV security camera.

Fake security camera - professional security camera $29.99 A realistic imitation CCTV security camera.

4 Camera 65 Ft IR Day/Night Video Security System with LCD Monitor $679.99 This easy-to-install, turn-key solution comes complete with everything you need to set up a full-featured video surveillance system, including:4 x weatherproof 65' night-vision color cameras - In darkness or light, these cameras see it all!4-camera H.264 digital video recorder with pre-installed 500GB hard drive - Store weeks of video evidence and offload easily to USB or your network.FREE iPhone or Android app - Monitor your home or business on the go! No setup fees or recurring fees - EVER!Turn-key Security! - Includes remote control, USB mouse, 60' video cables, power supplies, and easy connection instructions.FREE Technical Support - We're here to help you for the lifetime of your productOnline DemoView a live video stream from this system remotely from your computer.InstructionsYou must use Internet Explorer to view the demo. You may need to update your ActiveX settings to access the demo.Go to http://70.132.198.196/ to access the demoLog in with:Username: demoPassword: 1111Click the Open All button in the bottom left of the screen to view all four cameras.Note: Only 10 users can be logged into the system at one time. If you are unable to log in, please try again later.Need help accessing the demo? Try our web demo quick start guide (PDF).

16 Channel H.264 Security DVR with Advanced Features $499.99 The DVR1690N utilize the latest H.264 video compression method to reduce file size for extended storage capacity, enhanced image quality and improves network transmission speed for remote viewing. Recording can be triggered manually, by alarm, motion detection or preset timer.The user friendly on-screen menu display provides controls for camera picture quality, record settings and more. You can easily control the DVRs through the included USB mouse, IR remote control or networked computer. You can also access your DVR from any internet connection or access live video with most smart phones. Comes with easy connection instructions to make setup fast and easy.Online DemoView a live video stream from this system remotely from your computer.InstructionsYou must use Internet Explorer to view the demo.Go to http://70.132.198.196/ to access the demoLog in with:Username: demoPassword: 1111Click the Open All button in the bottom left of the screen to view all four cameras.Note: Only 10 users can be logged into the system at one time. If you are unable to log in, please try again later.Need help accessing the demo? Try our web demo quick start guide (PDF).