Now both units or individuals that have sufficient demand on video monitoring. Then when installed video monitoring should be how to choose the surveillance cameras? Below small make up explain to everyone.

The choice of surveillance camera resolution

Definition of the surveillance cameras, general civil level is 420 lines, 480 lines, 520 lines, 600 lines, 700 lines, line number, the more the more clear.Line number on behalf of the definition of cameras, namely the monitor horizontal scanning line number. Generally more than 600 lines represent for high-definition cameras.On the market a lot of virtual target, some identified 700 line, actually only 500 lines, differs a lot, we often have actual test, with a regular TV face, resolution can be seen.

Surveillance cameras

The distinction between the surveillance camera features

In the shape of the difference, divided into hemisphere type camera, and gun type camera. Hemisphere type named on the appearance, the advantages of small size, good appearance, suitable for installation code in the interior, office, hotel hallways, elevators, the place such as corridor, good concealment. The focal length of the hemisphere type, suitable for close to place the object.Gun camera is suitable for installation in all places, and no specific hemisphere type, the difference. Other special cameras (such as flying butterfly, smoke type, pinhole, smoke type) is suitable for indoor places with special requirements.