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 Fake Dome Surveillance CAM Dummy Security CCTV Camera  US $.99
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 SURVEILLANCE SECURITY CCTV CCD COLOR DOME CAMERA C103SC US $.99
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 ADome Spy Camera Security Surveillance Nanny CCTV TV DC US $.98
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 24 LED Cmos DOME Infrared Surveillance CCTV Camera DIY US $14.99
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 Fake dome Surveillance CAM Dummy Security CCTV Camera US $.99
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 New CCTV IR Dome Video DVR Surveillance Camera w03 US $19.99
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 Fake dome Surveillance CAM Dummy Security CCTV Cam TP26 US $.93
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 Surveillance Security CCTV IR Color CCD Dome Camera US $13.50
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 SURVEILLANCE SECURITY CCTV CCD DOME IR CAMERA C106SL US $.99
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Skylink SC-100 Security System Deluxe Kit List Price: $129.77 Sale Price: $88.48 Average Rating:   |
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Designed for use in small- to medium-sized homes or offices of up to 3,000 square feet, the Skylink SC-100 Security System Deluxe Kit helps you protect your family from unwanted intruders or theft, while also giving you real peace of mind in case of emergencies... |
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GE 51107 Smart Home Wireless Alarm System Kit List Price: $71.10 Sale Price: $25.77 Average Rating: |
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The GE 51107 Personal Security Alarm Kit includes everything you need to help secure your home, including a deluxe door alarm with a four-digit keypad and three independent window alarms. Best of all, there's no wiring or drilling required for installation... |
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Skylink SC-10 Security System Basic Kit List Price: $101.93 Sale Price: $67.43 Average Rating:  |
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DIY Wireless Security System - Easy to install and ready to use, no programming is required. Rolling Code Technology - Leading edge technology, provides maximum security & reduces false alarm. Ideal for homes, apartments, convenience stores, gas station and condominiums... |
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Wireless Home Security System List Price: $199.95 Sale Price: Too low to display Average Rating: |
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Mace Brand Wireless Home Security System Why spend hundreds of dollars on a security system and pay monitoring fees when you can get the MACE WIRELESS HOME SECURITY SYSTEM for a fraction of the cost? This system detecets motion or a door or window opening, activates an alarm and cals your phone... |
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SecurityMan SM87B Wireless Door/Window Sensor for AirAlarm Home Security System (White) List Price: $19.99 Sale Price: Too low to display Average Rating:  |
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SM-87B is an add-on wireless magnetic door/window sensor for SecurityMan Air-Alarm system. Wireless transmitting distance is up to 450ft (in open area). It includes a 23A 12V alkaline battery which could last up to 2 years. |
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Macally Air-Alarm1 SecurityMan D.I.Y. Wireless Home Alarm System Kit List Price: $119.00 Sale Price: Too low to display Average Rating:  |
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SecurityMan Air-Alarm1 is a state-of-the-art wireless alarm system kit for homes and businesses. It is user-friendly easy to use protecting homes/businesses at a minimum cost of investment. Do-It-Your-Self installation and monitoring alarm system without monthly fees is a key benefit for users... |
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SecurityMan SM80 Wireless PIR Motion Sensor for AirAlarm Home Security System (White) List Price: $24.99 Sale Price: Too low to display Average Rating: |
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SM-80 is an add-on wireless PIR motion sensor for SecurityMan Air-Alarm system. Its wireless transmitting distance is up to 450ft (in open area). It includes a 9V alkaline battery which could last up to 2 years... |
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Driveway Patrol Sensor and Receiver Kit List Price: $39.99 Sale Price: $12.50 Average Rating:  |
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When a visitor--wanted or unwanted--approaches a house on foot or in a vehicle the motion-detecting sensor unit of this warning device sends a signal to the receiver indoors, which chimes an alert. The device is wireless and has a 400-foot range... |
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Logitech Alert 750e Outdoor Master Security System with Night Vision List Price: $349.99 Sale Price: $349.99 |
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Logitech alert 750e outdoor master system is the weatherproof, night vision video security system you can set up yourself and count on when you need it. installation is simple and takes just minutes. |
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Defender SN301-8CH-008 8 Channel H.264 Smart DVR Security System with Coaching iMenu and 8 Hi-Res CCD Night Vision Surveillance Cameras (Black) List Price: $699.99 Sale Price: $680.00 Average Rating: |
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This Defender DVR system will work for almost any property because it includes 8 indoor/outdoor night vision cameras. Depending on the size of your business or home, you can mount the cameras at all entrances, in your yard and even inside... |
Surveillance Dome Camera
As with regular surveillance cameras, the lens on a surveillance camera determines how wide an image is created and how much light is let in.
The lenses you purchase should match the format of your surveillance camera: 1/4" lenses work best with 1/4" cameras. It is possible to use a larger format lens than the surveillance security camera calls for, but it is not recommended.
Also, fixed focal length lenses offer only one set field of view and are the least costly. To change the resulting image, you need to use a different lense. Variable focal length camera lenses and zoom lenses offer greater flexibility, allowing you to adjust your image's field of view. Motorized zoom lenses, the most costly type available, give you the ability to control your cameras remotely. If you want to zoom out for general surveillance and in for detail when you spot suspicious activity, motorized camera focus is preferable.
If you will be using the surveillance camera outdoors, look for a lens with an automated iris. As in the human eye, the iris of a lens is what controls the amount of light coming into the surveillance camera. Automated irises can significantly improve performance for outdoor cameras, where light levels vary considerably. However, you can save money and use a manual iris lens when the scene illumination never changes, for example in an illuminated store or office, but we do not recommend it.
Dome housings like this protect PTZ cameras and hide their orientation.
Pan, Tilt, Zoom
For advanced security applications, you may want a pan, tilt, zoom (PTZ) camera. With the right equipment, a camera operator can pan (scan left and right), tilt (look up and down), and zoom in and out. The significant catch is the cost: PTZ systems are a higher cost than fixed cameras, however most users find them the most effective for surveillance.
Camera Housings
Cameras need to be protected from potential harsh elements. Housings can range from simple coverings, to impact-resistant protection, to outdoor housings that include heaters and blowers for cooling. A more specialized type of housing is the dome: tinted Plexiglas hemispheres that prevent subjects from seeing which direction a camera is pointing. Choose the right housing based on the placement of the surveillance camera and its expected usage.
About the Author:
Mark Allen is a frequent writer on surveillance cameras.
Article Source: ArticlesBase.com - Security and Surveillance Camera Lenses