home security san francisco
It is ideal for commercial installations. Bullet CamerasThis type of security camera is contained in a bullet shaped housing. Most bullet cameras are sealed and weatherproof, yet cannot use different lenses. The great advantage of this camera is its integrated designs and small size that also has infrared LED built in. This infrared technology is not visible to human eye. It illuminates viewing area to ensure monitoring even in complete darkness. However, it works on limited distance up to 50ft. It is aesthetically designed and very simple to install making it ideal to install in residential. Board CamerasThis security camera has fixed lens mounted on circuit board. It is also known as spy cameras due to its pinhole lens that is concealed for surveillance purposes. This camera is recommended for residential use because its flexibility is unlimited as well as its focal length.