# Millimeter Wave Cargo Inspection Technologies

*Last updated: 2026-06-26*

> Customs authorities and port security services use millimeter wave cargo inspection technologies to examine freight and containers for concealed items without physical intrusion.

Customs authorities and port security services use millimeter wave cargo inspection technologies to examine freight and containers for concealed items without physical intrusion. Operating in the 30–300 GHz range of the electromagnetic spectrum, these systems penetrate most packaging materials, textiles, and plastics, rendering internal anomalies visible on screen. Because they emit non-ionizing radiation, regulatory requirements for their operation are less stringent than for X-ray equipment. Screeners can identify weapons, explosives, or contraband without breaking a seal, which meaningfully speeds up clearance at busy border points and cargo terminals. Border agencies typically deploy this technology alongside conventional X-ray and Compton scatter systems rather than as a standalone replacement.

**Source:** [https://en.wikipedia.org/wiki/Millimetre_wave_scanner](https://en.wikipedia.org/wiki/Millimetre_wave_scanner)

## Quick Facts

| Property | Value |
|---|---|
| Term | Millimeter Wave Cargo Inspection Technologies |
| Language | EN |
| Word count | 107 |
| Last updated | 2026-06-26 |
| Source | https://en.wikipedia.org/wiki/Millimetre_wave_scanner |

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