Which type of sensor is specifically designed for detecting seismic activity caused by foot traffic?

Seismic Point Sensors (SPS) are specifically engineered to detect vibrations and ground movements associated with seismic activity, such as that produced by foot traffic. These sensors are sensitive to the frequencies and patterns characteristic of someone walking or running, making them particularly useful in border patrol operations for tracking unauthorized crossings.

They can differentiate between various types of movement, allowing agents to respond appropriately to potential threats or illegal activities occurring in areas where traditional surveillance methods may be less effective. By focusing on the vibrations created by footsteps, SPS can provide valuable information about the location and number of individuals traversing a specific area, enhancing situational awareness and operational efficiency.

In contrast, the other sensors mentioned have different functionalities and are not optimized for detecting seismic activity from foot traffic. For example, Remote Video Surveillance Systems primarily rely on visual monitoring, while Magnetic Point Sensors gauge changes in magnetic fields, and Infra-Red Devices detect heat signatures. Each of these has its own advantages but does not specialize in the specific detection of vibrations caused by foot traffic like Seismic Point Sensors do.