CCTV or video surveillance system is to transmit a signal from video cameras to a specific recording unit, on a set of monitors primarily for surveillance and security purposes.

Access Control is a security system that manages and controls the restriction of entering a place or other resources in the fields of physical and information security.

The fire alarm system includes a number of devices used to detect smoke, fire, carbon monoxide, or other emergencies and warm people with visual and audio appliances.

Audiovisual (AV) means having sound and visual components such as slide shows, movies, TV shows, church services, and live theatre production.

PBX is a private telephone network used within a company or organization. Users can communicate internally and externally, using different communication channels.

Smart Home and Automation system remotely control lighting, air conditioning, and electronic devices by smartphone or computer for owners’ comfort, security and energy efficiency.