# Perimeter intrusion detection

Part ID: 9.09a · Layer 9 (Building shell, site & construction) · child of 9.09

Microwave, radar, and fiber-based sensing systems that detect intrusion along a facility's perimeter before it reaches the building.

## Companies

| Company | Role | Confidence | Ownership | Ticker | Note |
|---|---|---|---|---|---|
| Senstar | manufacturer | inferred | public | SNT |  |
| Magos | manufacturer | inferred | private |  |  |
| Southwest Microwave | manufacturer | inferred | private |  |  |

Confidence tags: disclosed = company/filing statement; reported = trade press or partner list; inferred = taxonomy lead.