Projectors

An LCD projector is a type of video projector for displaying video, images or computer data on a screen or other flat surface. It is a modern equivalent of the slide projector or overhead projector. To display images, LCD (liquid-crystal display) projectors typically send light from a metal-halide lamp through a prism or series of dichroic filters that separates light to three polysilicon panels one each for the red, green and blue components of the video signal. As polarized light passes through the panels (combination of polarizer, LCD panel and analyzer), individual pixels can be opened to allow light to pass or closed to block the light. The combination of open and closed pixels can produce a wide range of colors and shades in the projected image.

A security alarm is a system designed to detect intrusion unauthorized entry into a building or area.

If you are looking to efficiently increase the security on your premises then one of the best approaches that you can take is with CCTV cameras.

In the fields of physical security and information security, access control is the selective restriction of access to a place or other resource.

By having a monitored alarm system you are ensuring that your property is watched over 24 hours a day 7 days a week.