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some bullet cameras will even have an infrared LED feature built-in. Most Bullet cameras, in comparison, do not offer high resolution and lens selection flexibility, but are likely to be weatherproof. the person doing the monitoring is also confined to a short range if they want to see the images clearly. Standalone Systems Motion detection will allow video recording from each camera only when motion is detected. Needless to say, this is extremely convenient, since you may not want to be so close to the place you're monitoring. And now, with the world going steadily wireless. All the benefit of a high-resolution camera is affectively sacrificed by limited capability of the monitor. Special brackets and tile clamps can support a camera destined to be located in difficult positions. Types of IR Illuminators
Some systems can only be used over short distances like a nearby room or house, while others can be useful from miles away. Whereas cables can only go so far before the signal goes bad, wireless transmission can send clear, high-quality pictures all the way across the globe.
Lux units measure sensitivity, that is, the amount of light per square meter. Low lux units in the camera's specs means it has enhanced ability to operate in poor ambient light conditions. This is great for extending video recording time. It is also a good idea to use plans or blueprints of your house; you can mark locations and measure distances more accurately this way. Will you monitor the house 24/7? Or will you simply record using a time lapse VCR and then view the tapes after something happens. CCTV Camera Types In some systems you can also find a special monitor. A DVR enables you to choose the exact time of recording you want to see without having to rewind hours of tape. The maximum distance the receiver can be from the camera depends on its transmission capability. A standard resolution camera may have 350-380 lines, over 400 TV Lines is generally considered good resolution while over 500 TV lines is considered high resolution. Who is lifting my newspapers every morning?
Introduction to CCTV Systems and Spy Cameras CCTV systems are used mainly in large public areas like: banks, malls, train stations, sport stadiums and in almost every large store.