Surveillance systems designed for mostly indoor use, office type of environment. They can be used in wide variety of mostly indoor applications including medical and dental offices, professional offices etc. Systems in this category are mostly built with use of high resolution indoor cameras with available optional night vision. In case there is a need fro few outdoor mounted cameras, there is an option to substitute outdoor weather proof cameras for some of indoor cameras that come with the system. Digital video recorders come with all the basic features including remote access via internet from any computer, smartphones and tablets. Central monitoring software included with every system allows remote monitoring of multiple system from one locations. This feature is very useful for offices in multiple locations.