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Hard drives are smaller and more convenient to maintain than VCRs. 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. All the benefit of a high-resolution camera is affectively sacrificed by limited capability of the monitor. For example: the average security camera image size is 1/3". This size provides a good enough image quality. On the other hand color cameras offer more realistic and natural pictures. Most cameras are wireless and run on batteries. bullet cameras are a great choice for residential and do-it-yourself (DIY) installations where monitoring objects are within about 25ft from the camera location (with standard 3.6mm lens). This is a great feature, but it only works up to a certain distance (usually between 10 and 50 ft. depending on the model. How Do Infrared Illuminators Work? Security Gadgets to Protect Yourself and Your Family

Good quality cables will prevent video degradation over long distance runs. It is recommended to use RG59 or RG6 coaxial cables as they are fully shielded and will prevent video loss up to 400 ft. This is good for, say, tracking criminals who don't stay in one place, or for catching action that's outside the camera's range.

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There are two major types of digital recorders on the market right now. Spy cameras vary in size and design. Actually, the word disguise, rather than design, is probably a better word for describing spy cameras. In this case, you can install a 'nanny camera' in the bedroom. Wireless Surveillance Cameras They are also available in dome housing, as a very popular Dome Camera. integrated with Smoke Detector, Motion Detector, Exit Sign and so on. The distance from the monitoring object to the camera is not an issue here, that is why the ability to select different lenses, based on camera location is so important. The term spying can bring to mind negative associations. However, the term does injustice to the camera's true function. In some systems you can also find a special monitor. The average security camera has about 430 TVL. However, higher density 1/4" and 1/3" CCD chips can now produce as good an image as many 1/3" or 1/2" chips.

You should also take into account your own interactions with the camera. Controlling the DVR is simple and it offers you a variety of recording speeds.

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