Which sensor type is primarily concerned with video surveillance?

The Remote Video Surveillance System (RVSS) is specifically designed for video surveillance, making it the correct choice. This system utilizes cameras and other video technology to monitor and assess situations in real-time. It provides a visual means of surveillance, allowing for the observation of border activities, detection of unauthorized entries, and situational awareness for Border Patrol operations.

In contrast, the other sensor types serve different purposes. Seismic Point Sensors (SPS) are primarily used to detect vibrations in the ground, indicating the presence of movement, but do not provide visual data. Magnetic Point Sensors (MPS) and Magnetic Vehicle Detection Sensors (MVDS) focus on detecting magnetic fields for vehicle presence or movement, which again does not include video capabilities. Therefore, the RVSS stands out as the only option designed for visual surveillance, making it essential for monitoring border areas effectively.