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How to Choose a Suitable Security Camera (Part 3) by Alex Pang
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How to Choose a Suitable Security Camera (Part 3) |
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Electronics,Science & Technology,Finance & Investment
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6. Consider the benefits of hidden cameras. These offer perhaps the highest degree of surveillance. If you do not want someone to know that there is a camera, use a hidden camera. Fake smoke detectors, motion detectors, clocks, sprinklers, EXIT signs are examples of the type of hidden cameras that are used. The main disadvantage is that hidden cameras do not have infrared capabilities which limit their performance in low light. In addition, many hidden cameras are not weatherproof, so they take are not as useful as infrared bullet and dome cameras when being used outdoors. Pharmacies, hallways of hotels, assisted living facilities, and homes are examples of some of the applications in which hidden cameras are used. 7 Decide whether you want wired or wireless cameras. Wired cameras offer a larger selection of cameras and more importantly, much better video quality than wireless cameras. Wireless cameras can somewhat be misleading as they need to be powered at the camera location. In addition, they require a line of sight with no obstacles, which often poses an issue. Reliability and video quality are the main reasons that you should use a wired camera. Wired cameras are powered back at the DVR location and only a single cable (RG-59 Siamese coax power/video in one) needs to be run from the DVR to each individual camera. You can run cameras up to 800 feet away with this particular cable. If going over 800 feet you will need to use CAT5 cable with video baluns and/or amplifier. Expect a much longer lifespan and much higher quality with wired cameras. Obstacles are not an issue with wired cameras. With that in mind, occasionally you may have a location of two that absolutely need it. In that case, you can plug the transmitter to the back of the DVR.
Related Articles -
night vision, infrared, high speed dome, ptz,
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