System Keypad
2009
Home Alarms – Need Home Security? Try CCTV Monitoring System
If you’ve given any consideration to home security, you’ve most likely thought of a closed circuit television monitoring system (better known as CCTV.)
What you’ll have with your CCTV system is at least one surveillance camera, many different lenses (pan, zoom and infrared for night vision) to concentrate on certain areas of your grounds and home, and a VCR (video cassette recorder) that will make a permanent record of what the camera is viewing.
If you should choose you would like to provide CCTV security in your home, you’ll need to do at least one slow walk around your home, making notes as you go, about where you need surveillance, and what areas are the most vulnerable, and needing protection. Although you definitely wish to focus on your house – the place where your family’s safety is the primary concern – do not neglect to include garage, breezeway, in-law quarters, front and back yard, driveway, alleyway, or any outside fence or gate entrance.
You may want more than one camera in your home. This can be crucial if your home is big, for instance, and you’re regularly in one section of the home while a babysitter watches your children, or a housekeeper performs his or her duties. With the prevalence of home offices, this might be especially important, if you’re in your office all day with the door closed. Having a separate camera watching that home office may likewise reduce your insurance bill as well.
As soon as you have determined what areas which you need to focus, you’ll need to measure the areas. The range of area requiring monitoring is crucial to the size of camera or cameras you purchase.
While you can select 5 sizes of camera – ranging in size from one quarter to two thirds of an inch, the best choices are to go no larger than one half an inch. With a camera half inch or smaller, you’ll have a more extensive choice of lenses which will work with it.
There are 4 different versions of CCTV camera lenses from which you are able to choose. They’re fixed aperture, manual or auto iris and zoom. An auto iris lens is ideal for outside viewing, since it adjusts itself to accommodate changes in lighting. In places where the amount of lighting stays rather stagnant a manual iris will do. This kind of lens requires that you actually make the lighting adjustments manually. Zoom lenses, just like any camera, allow you to bring a viewed situation closer to your eye for improved visibility. Several zoom lenses provide a motorized option.
Once you know the number of cameras you’re going to need, you’ll know whether you are going to need to have more than one monitor or whether you can make do with a switcher (one monitor, alternating location views) or a multi-plexer (several locations showing in boxes on one monitor at the same time).
Determine how long you are going to need to record prior to being able to take out and replace the VCR film. If the time you are going to be absent from the home, i.e., unable to remove and replace the VCR tape, is going to go beyond 4-6 hours (depending on the VCR) you may not be able to make use of your household VCR. You may have to upgrade to a commercial quality recorder.
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