Luggage and mail screening technology should be non-destructive, have enough resolution and be capable of identifying hidden objects. Just as Terasense technology is. Transmission and/or reflection THz images allow to detect metallic and non-metallic objects hidden in bags, boxes, envelopes and so on. THz images help to identificate potentially hazardous items without opening a bag or envelope.

Sample sub-THz transmission images of different objects

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A knife hidden in a book	Metallic stencil over a 9-mm plywood	A gun replica hidden in a textile cover	Metallic, plastic and wooden rulers​​​​	A gun replica hidden in a wooden case