DFS2019
The laser-audio surveillance system operates
by transmitting an invisible infra-red beam to
the window of the targeted room. The system
allows the operator to execute undetectable laser
surveillance operation from outside a building up
500 meters.
INTELLIGENCE, LAW ENFORCEMENT
LASER-AUDIO SURVEILLANCE
LASER-AUDIO SURVEILLANCE
DFS2019
The laser-audio surveillance system operates
by transmitting an invisible infra-red beam to
the window of the targeted room.
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