Perimeter monitoring is a difficult task. Surveillance cameras, motion detectors, and personnel are very expensive resources, therefore you often cannot deploy as many as needed to get a complete coverage.
A Particle network is ideal for security applications. By deploying nodes around perimeters and across high-security areas, you can obtain a full coverage without a expensive wired installation.
Since Particle nodes are battery-powered, they can be installed in areas that are difficult to monitor by conventional means. The installation time and expense is much lower than for conventional wired security solutions. The network can be easily expanded or re-deployed at another site.