The first step in purchasing a surveillance camera is to survey of the area that you want to cover. These are the areas that you want to cover. Next, determine the width of the area that you need each camera to cover. This will help you determine exactly where you need to place the camera. Surveillance cameras come equipped with different lenses. Knowing how wide an area you need each camera to cover will assist you.
You should have an idea of where you want to place the cameras. Surveillance cameras come with four types of lenses. Some cameras come with lenses that are meant to record objects up close, some with lenses that are meant to record far away. Others with lenses where the recording distance can be focused at the time of installation. Still others come with lenses which can be controlled from a remote location.
Surveillance cameras come in various styles. The first type of camera is the box camera. The second type i the bullet camera shaped like a tube of lipstick. The third type is a dome camera while the fourth can pan, tilt and zoom camera which can be controlled remotely.
Surveillance cameras come wired or unwired. Most people prefer the unwired versions for outdoor use. When using an unwired version be careful to check that nothing will interferes with the signal. In the best of circumstances the signal will only travel so far. Objects in the environment, such as cordless phones and microwaves can also interfere. Make sure that you consider all these factors when purchasing your surveillance camera system.